People v. Lucas , 60 Cal. 4th 153 ( 2014 )


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  • Filed 8/21/14
    IN THE SUPREME COURT OF CALIFORNIA
    THE PEOPLE,                          )
    )
    Plaintiff and Respondent, )
    )                           S012279
    v.                        )
    )
    DAVID ALLEN LUCAS,                   )
    )                      San Diego County
    Defendant and Appellant.  )                 Super. Ct. Nos. CR 73093 &
    )                           CR 75195
    ____________________________________)
    A jury found defendant David Allen Lucas guilty of the first degree
    murders of Suzanne Jacobs, Colin Jacobs, and Anne Swanke (Pen. Code, §§ 187,
    subd. (a), 189),1 the attempted murder of Jodie Santiago Robertson (§§ 187, 664),
    and the kidnappings of Swanke and Robertson (§ 207, subd. (a)). The jury also
    found that he personally used a knife during each crime (§ 12022, subd. (b)) and
    inflicted great bodily injury upon Swanke and Robertson (§ 12022.7). The jury
    further found true the special circumstance allegation of multiple murder (§ 190.2,
    subd. (a)(3)). The jury acquitted defendant of the murder of Gayle Garcia and was
    unable to reach verdicts on the murders of Rhonda Strang and Amber Fisher.2 On
    1      All further statutory references are to the Penal Code unless otherwise
    indicated.
    2     Eleven jurors voted to convict defendant of these murders. After
    defendant’s sentencing, the trial court granted the prosecution’s motion to dismiss
    the Rhonda Strang and Amber Fisher murder counts.
    the allegation that he had a prior serious felony conviction for rape, the jury found
    the allegation true (§§ 667, subd. (a), 1192.7, subd. (c)(1)). Following the penalty
    phase of the trial, the jury returned a verdict of death. The trial court denied
    defendant’s motions for new trial (§ 1181) and for modification of the penalty to
    life imprisonment without the possibility of parole (§ 190.4, subd. (e)) and
    sentenced him to death. The court also sentenced defendant to a 17-year term for
    the attempted murder of Robertson.3
    This appeal is automatic. (§ 1239, subd. (b).) We affirm the judgment.
    I. FACTS AND PROCEEDINGS
    From May 1979 to November 1984, there were six unsolved throat-slashing
    killings in the San Diego area. A seventh victim, Jodie Santiago Robertson,
    survived her throat-slashing injuries, and, in December 1984, she identified
    defendant as her attacker. Following defendant’s arrest, police investigated
    defendant’s possible involvement in the other killings, which eventually resulted
    in these consolidated proceedings charging defendant with six murders and
    Robertson’s attempted murder. Because defendant makes extensive arguments
    contesting the consolidation and joint trial of these crimes and their cross-
    admissibility, we also include a factual summary of the crimes for which
    defendant was acquitted or that ended in mistrial.
    3      This 17-year term is comprised of the upper term of nine years on the
    attempted murder conviction with an additional three years for the great bodily
    injury finding plus a term of five years for defendant’s prior serious felony
    conviction. Pursuant to section 654, the court stayed the one-year enhancements
    for use of a knife regarding each murder conviction and the 10-year term for each
    kidnapping conviction.
    2
    A. Guilt Phase
    1. The Homicides of Suzanne and Colin Jacobs
    The 1979 killings of Suzanne and Colin Jacobs were unsolved for
    approximately five years until the investigation focused on a suspect, John
    Massingale, who had purportedly confessed to the crimes. At the time of
    defendant’s arrest in late 1984, Massingale was in custody in San Diego awaiting
    trial for the Jacobs killings. Investigators reevaluated the evidence in the Jacobs
    killings and linked defendant to those killings, largely because of a handwritten
    note found at the crime scene that matched defendant’s handwriting. After further
    investigation, detectives developed a case against defendant based on boot print
    evidence, hair evidence, a vehicle linked to defendant, and his lack of an alibi.
    Authorities later dropped all charges against Massingale, released him, and instead
    charged defendant with the Jacobs killings. Eventually, defendant’s presentation
    at trial focused heavily on the evidence that had purportedly linked Massingale to
    the killings of Suzanne and Colin Jacobs.
    a) Prosecution Evidence
    (i) The Events Leading to the Homicides
    On May 4, 1979, Michael and Suzanne Jacobs lived in a small white wood-
    frame house in the eastern end of San Diego, California, with their three-year-old
    son, Colin, and their two dogs. That day, Michael and Suzanne were expecting the
    delivery of a new dinette set.
    Michael awoke that morning and started his normal workday routine by
    getting ready for work. He left the house at 6:00 a.m. and drove away in the
    family vehicle. Michael also kept in his driveway a blue off-road Volkswagen
    Beetle with the top cut off and outfitted with a roll bar.
    Margaret Harris, a neighbor and friend who lived across the street from the
    Jacobs house, testified that she did not see Suzanne outside her house as she
    3
    usually did every morning. Instead, she had seen a maroon or wine-colored sports
    car with a black top parked in the Jacobses’ driveway between 8:00 and 9:00 a.m.
    Harris believed the car was an MGB and described it as having sun-damaged
    paint.4
    Later that morning, around 11:00 a.m. to 11:30 a.m., Harris telephoned
    Suzanne, but no one answered. She assumed that Suzanne had been picked up by
    whoever had arrived in the sports car. About this same time, Michael also
    telephoned Suzanne but got no answer.
    At approximately 12:30 p.m., deliveryman Louis Hoeniger arrived at the
    Jacobs residence to deliver the shipment of dinette furniture. For approximately
    10 minutes waiting for someone to answer the door, Hoeniger heard no response,
    except for the barking of the Jacobses’ dogs in their backyard. Harris observed the
    delivery truck arrive at the Jacobs residence and saw the deliveryman leave the
    dinette furniture on the front porch. This surprised Harris because she knew
    Suzanne was expecting the delivery.
    Around 5:00 p.m., Michael returned home and was puzzled by the
    discovery of their new dinette furniture on the front porch because Suzanne was
    supposed to receive the shipment. Michael entered the house and discovered
    blood all over the bathroom. As he backed out of the bathroom, he saw Colin
    lying dead on the bedroom floor.
    4      Harris did not immediately identify the car as an MGB. She explained she
    came to this conclusion two days later when she and her husband drove around
    town to see if she could identify the make and model of the car she had seen in the
    Jacobs’s driveway. When they saw an MGB, Harris believed it was the same
    make and model as the car she had seen two days earlier.
    4
    Michael walked out of the house and called out across the street to
    Margaret and Ed Harris, who were outside. Michael appeared to be in shock and
    collapsed on the ground. Michael was unable to talk, so the Harrises went into the
    Jacobs home to investigate. They discovered Colin’s body just inside the entrance
    of the master bedroom and Suzanne’s body further inside the master bedroom.
    Mrs. Harris called the police.
    (ii) The Scene of the Crime
    Emergency units and San Diego police officers arrived at the Jacobs
    residence and secured the crime scene to examine and collect evidence. There was
    a significant amount of blood on the bathroom floor and on the floor of the
    hallway leading to it. There was blood on the front and inside of the bathtub. On
    the bathroom rug was a folded, torn scrap of paper with handwritten printing that
    read “Love Insurance” and “280-1700.”5 The note had a bloodstain on it. Child-
    sized bloody footprints, consistent with Colin’s, led from the bathroom to inside
    the master bedroom where his body was found.
    Colin’s throat had been severely slashed. Because of the amount of blood
    found in the bathroom, the child-sized bloody footprints leading from it, and the
    amount of blood on the front of Colin’s clothing, Detective Gary Gleason believed
    Colin’s throat had been cut in the bathroom but that he had survived long enough
    to walk down the hallway where he collapsed inside the master bedroom.
    The master bedroom showed signs of a violent struggle. A padded railing
    had been dislodged from the edge of the waterbed and was lying on the floor. The
    bedsheets were out of place and had bloodstains. There was a smear of blood on
    5     Love Insurance was the name of an insurance brokerage firm in San Diego,
    and 280-1700 was the firm’s telephone number.
    5
    the top of a chest of drawers, and items on it had toppled over or fallen to the
    floor. Next to the entrance to the master bedroom, there was a smear of blood on
    the light switch and the adjacent door and frame.
    Suzanne’s fully clothed body lay sprawled on the floor between the
    waterbed and the chest of drawers. In both of her clenched hands were several
    strands of blond hair. She had bruising across her back near her bra strap and her
    shirt had been torn in that area. Suzanne’s throat had been slashed from ear to ear.
    Because of the sheer volume of blood on the floor of the master bedroom,
    no one could have walked around the bodies without leaving footprints. Adult-
    sized bloody footprints with a distinctive Vibram-sole pattern were visible in the
    master bedroom, leading out of the bedroom, through the hallway and toward the
    kitchen. All the adult-sized footprints appeared to be made by one person because
    they were all the same size and had a consistent right-left pattern.
    In the living room, the television had been left on; on top of it was a wine
    glass with some wine in it and an ashtray containing a cigarette butt. Around the
    television were more bloody footprints with the same Vibram-sole pattern. The
    footprints led toward the dining room and then into the kitchen.
    In front of the kitchen sink, the footprints overlapped as if someone had
    stood over them repeatedly. Blood was on the kitchen sink, faucets, and the drain
    trap. Blood was on a washcloth in the sink, the soap holder, and a green paper
    towel left on the kitchen counter — all consistent with a bloodied assailant having
    used the sink to wash.
    (iii) The Forensic Evidence
    (1) The victims’ injuries
    According to forensic pathologist David Katsuyama, Colin’s throat had
    been slashed by at least two distinct cuts — one that extended from the left side of
    6
    his neck across the throat, and the other that extended to the right side behind his
    ear — leaving a gaping wound that nearly extended to the backbone. Because the
    cuts had severed his jugular vein and carotid artery, he bled to death. Colin also
    had severe cuts on the tips of two fingers, his right thumb, and the palm of his left
    hand below the base of the thumb.
    According to Dr. Katsuyama, Suzanne’s throat had been slashed by at least
    six distinct cuts that transected the skin, fatty tissue, cartilage, and muscles of the
    neck leaving a gaping wound that exposed the backbone. Her right jugular vein
    and right carotid artery were severed. Suzanne also had three stab wounds: a
    small wound above her left collarbone, a larger wound that severed her pulmonary
    artery, and a wound to her abdomen that deeply penetrated her liver. Like Colin,
    Suzanne died of blood loss caused by all of her wounds. Unlike Colin, Suzanne
    had evidence of petechial hemorrhaging — tiny specks of blood caused by the
    rupture of capillary blood vessels on her left eyelid. Dr. Katsuyama explained that
    Suzanne’s petechial hemorrhaging could have been caused by the loss of blood
    flow to that area caused either by strangulation or by her rapidly bleeding wounds.
    Suzanne, however, died with her tongue clenched between her teeth, which is
    consistent with strangulation. Her body bore no signs of a sexual assault.
    Suzanne’s blood-alcohol level at her death was .04 percent, which would have
    been consistent with her having consumed two eight-ounce glasses of wine within
    the hour before she died.6
    In Dr. Katsuyama’s opinion, Colin’s and Suzanne’s wounds were inflicted
    by a medium-length sharp-edged knife with a relatively stiff blade.
    6      Michael and Mrs. Harris both testified that Suzanne did not ordinarily drink
    in the morning.
    7
    (2) The “Love Insurance” note
    On May 11, 1979, lab technician Pat Stewart took several photographs of
    the “Love Insurance” note found in the Jacobses’ bathroom, unfolding it to reveal
    the handwritten printing on it. He then applied ninhydrin, a chemical that detects
    fingerprints by staining them a color ranging from a light pink to a dark purple.
    After he applied the ninhydrin, a partial fingerprint appeared. At the time, Stewart
    was unaware that fingerprints that appear after ninhydrin is used fade over time,
    and he did not take a photograph of the fingerprint, believing that the latent print
    examiners would do so.
    Three days later, San Diego Police Department latent print examiner Leigh
    Emmerson examined the partial fingerprint on the Love Insurance note and found
    five to six identifiable points, which he believed were not sufficient to determine
    to whom the print belonged but which could be used to eliminate potential
    suspects. Emmerson informed the lead detectives that the fingerprint should be
    preserved. But he did not take a photograph of it himself because it was
    department policy for the investigating officer to photograph such prints.
    Emmerson returned the note to a locked file in the department’s latent print
    section.
    (iv) The Arrest of John Massingale for the Homicides
    John Massingale, a drifter and native of Harlan County, Kentucky,
    eventually became a suspect in the Jacobs murders. On March 18, 1984, San
    Diego police detectives located Massingale in Kentucky and interrogated him.
    During the initial interrogation, he admitted he was a drifter in Southern California
    in 1979 through 1980, but denied that he regularly carried a sheathed fixed-blade
    knife. He also initially denied any knowledge of the Jacobs murders or that he had
    later bragged about killing them while hitchhiking with two men. The following
    8
    day, however, in tape-recorded interviews, Massingale admitted he used to carry a
    fixed-blade knife and confessed to the murders, providing details matching the
    crime scene. These details included that the Jacobs home was white and had a
    blue dune buggy parked outside, the approximate ages of Colin and Suzanne, the
    location of the living room couch, that Colin had been killed in the bathroom, and
    that Massingale exited the back door while hearing the sounds of barking dogs.
    Massingale was arrested and transported to San Diego where he remained in jail
    through December 1984.
    At defendant’s trial, Massingale testified that he had made a “phony”
    confession because the officers, before his tape-recorded confessions, advised him
    not to speak with an attorney, claimed they had evidence and witnesses against
    him, and warned that he faced a death sentence unless he cooperated with the
    police. Massingale alleged that a detective had shown him numerous photographs
    of the crime scene. Massingale said he later used details from those photographs
    in his recorded confessions. He also admitted that he mostly smoked Marlboro
    brand cigarettes.7
    Massingale, who grew up in the Appalachian Mountains of Kentucky,
    testified that he could read and spell small words but was basically illiterate. In
    Kentucky, he worked primarily as a painter and coal miner, but spent many years
    as a drifter and day laborer while staying at various Salvation Army missions.
    7      The cigarette butt found in the ashtray at the Jacobs residence was not
    preserved, but the defense, during closing statements, argued that the butt was
    consistent with a Marlboro brand cigarette based on crime scene photographs. At
    the time of her death, Suzanne Jacobs had matchbooks and a Winston brand
    cigarette in her pants pockets.
    9
    (v) The Arrest of Defendant in December 1984 and
    Reexamination of the Evidence
    Approximately five years after the Jacobs murders on December 16, 1984,
    following the throat-slashing murder of Anne Swanke (see post, at pp. 41-49) and
    after Jodie Santiago Robertson identified him as the assailant who slashed her
    throat (see post, at pp. 30-36), defendant was arrested. Therefore, because of the
    similarity of these cases to the throat-slashing murders of Suzanne and Colin
    Jacobs, local authorities reexamined the evidence collected at the Jacobs
    residence.
    (1) Comparison of defendant’s handwriting to the Love
    Insurance note
    In December 1980, after the police identified Massingale as a possible
    suspect in the Jacobs murders, police lab technician Pat Stewart reexamined the
    Love Insurance note but discovered that the partial fingerprint, raised by his
    previous application of ninhydrin, had faded away completely, and he was unable
    to find any photographs of the partial fingerprint. Stewart applied another
    application of ninhydrin, but nothing appeared. His lab sought the assistance of
    the FBI in re-raising the fingerprint and sent the note to the FBI. But when the
    note came back from the FBI, the fingerprint still was not visible, the paper had
    turned black and dark-purple, and the handwriting had become unreadable.
    Consequently, the investigation had to rely on photographs Stewart had taken of
    the note before he first applied ninhydrin to it in May 1979.
    A few weeks after his arrest, defendant, while in jail, cooperated with
    police and gave investigators several specimens of his handwriting. John J.
    Harris, a handwriting expert and former president of two national associations for
    document examiners, examined these specimens, as well as other writings
    defendant had made in the past. Harris enlarged these specimens and compared
    them with enlarged photographs of the handwriting on the Love Insurance note.
    10
    Harris believed, with “reasonable certainty” that defendant wrote the Love
    Insurance note. Frank Clark, defendant’s business partner in their carpet cleaning
    company, was familiar with defendant’s handwriting and also believed defendant
    wrote the Love Insurance note.
    Love Insurance was the name of an insurance brokerage in San Diego, and
    the numbers on the note matched its business telephone number. According to the
    brokerage’s business records, two months after the Jacobs killings, defendant
    bought auto insurance for his 1972 Audi through the Love Insurance agency.
    (2) Defendant’s prior employment and the boot print evidence
    Roy Nilson, a retired deputy sheriff who specialized in shoe print
    examinations, examined a photograph of a single bloody footprint found in the
    Jacobses’ living room and concluded the sole pattern matched that of a size 12
    Vibram style No. 100 sole. A Vibram sole was typically fitted to work or hiking
    boots.
    In the spring of 1979 defendant worked at Precision Metal, a metal forging
    company, which had provided defendant with a new pair of Lehigh work boots,
    size 10 1/2 D, about one month before the Jacobs murders. Nilson researched this
    brand and size and learned that the manufacturer often used a size 12 Vibram sole,
    trimmed to fit a size 10 shoe. He compared an inked footprint from an exemplar
    pair of size 10 1/2 Lehigh boots with a photograph of a bloody footprint on the
    Jacobses’ living room floor. Although the front portion of the boot sole matched
    the photograph well, the heel was out of alignment by three-eighths inch. Nilson
    believed this discrepancy could have been the result of minor inconsistencies in
    the manufacturing process, and that it was possible that the bloody prints could
    have been left by the same brand and size of boot as the exemplar.
    11
    (3) Blood and fingerprint evidence
    Bloodstain samples taken from the kitchen floor, kitchen sink, the living
    room floor, the bedroom, Suzanne’s nail clippings, the bathroom, and from the
    Love Insurance note all tested as type O blood, which was consistent with
    Suzanne’s and Colin’s blood type, but not with Michael Jacobs, John Massingale,
    or defendant, who all have type A blood.
    John Torres, a latent print examiner for the San Diego Police Department,
    found only five prints at the crime scene with clear enough ridge detail to be of
    value for purposes of attempting a possible identification. Of these, Torres
    believed two prints lifted from a doorjamb leading from the dining room to the
    kitchen matched Michael Jacobs. Torres could not identify the three remaining
    prints, two recovered from the doorjamb between the dining room and the kitchen
    and a palm print from the bathroom doorjamb, as originating from defendant,
    Suzanne, Colin, or Michael. Torres, however, did not examine these three prints
    to ascertain whether Massingale could be excluded as the donor of these prints.
    (4) Hair comparison evidence
    John Simms, a criminalist at the San Diego Police Department forensic
    science laboratory, and James Bailey, a criminalist at the Los Angeles County
    Sheriff’s Department criminalistics laboratory, each microscopically examined the
    hairs collected at the crime scene from Suzanne Jacobs’s clenched right hand.
    They compared them with hair samples from defendant and John Massingale.
    Simms excluded Massingale as the source of those hairs calling them “very
    different from Massingale’s.” Simms, however, was unable to either include or
    exclude defendant as the source of the hair found in Suzanne’s right hand but
    described some of the hairs as being very close to defendant’s.
    Bailey, in contrast, believed most of the hairs from Suzanne’s right hand
    were similar physically and microscopically to defendant’s hair and that they may
    12
    have come from him. According to Bailey, some of the hairs had characteristics
    closer to that of Colin Jacobs, but he could not eliminate defendant as the source
    of those hairs.
    Bailey also examined additional hairs collected at the morgue from
    Suzanne’s right hand and from her left elbow. Bailey believed many of the hairs
    collected from Suzanne’s right hand at the morgue were consistent with Suzanne
    or Colin. Four of the hairs, however, were consistent with defendant and another
    two hairs were consistent with either defendant or Colin. He also believed the hair
    collected from Suzanne’s elbow was similar to defendant’s but not to either
    Suzanne’s or Colin’s. Finally, Bailey also believed a hair found on a rug
    underneath Suzanne’s body was similar to defendant’s hair.8
    (5) Defendant’s mother’s MG Midget
    Because the Jacobses’ neighbor, Margaret Harris, reported seeing what she
    believed was a maroon or wine-colored MGB sports car parked outside the Jacobs
    residence on the morning of the crimes, the investigation focused on whether
    defendant ever had access to such a vehicle.
    On December 20, 1974, defendant’s mother had bought a 1974 MG Midget
    roadster. On November 11, 1976, defendant was stopped for speeding while
    driving his mother’s MG, and he was involved in an accident in the same vehicle
    eight days later. An MG Midget and MGB are very similar, with the MGB being
    slightly larger. The rear of the MG Midget and the MGB were identical during
    their respective production years.
    8     Simms, however, examined the same hair and was unable to include or
    exclude defendant as the source.
    13
    (6) Defendant’s whereabouts on the day of the murders
    At the time of the Jacobs murders, defendant lived in a residence hall
    associated with the Salvation Army. When he lived there, defendant’s presence
    was monitored and, due to his employment schedule at Precision Metal, he was
    not permitted to leave the facility earlier than 9:00 a.m. and had to return by
    1:00 a.m. But according to Precision Metal’s employee attendance records,
    defendant was not at work on either Thursday, May 3, or Friday, May 4, 1979.
    b) Defense evidence
    (i) The Impeachment of John Massingale
    The defense called several witnesses to impeach Massingale’s trial
    testimony that he was not involved in the killing of Suzanne and Colin Jacobs, his
    habit of carrying a fixed-blade knife, his purported admission to the killings to
    fellow hitchhikers, and his claim that the police had coerced his confession.
    On August 15, 1980, California Highway Patrol Officer Robert McLean
    stopped and cited John Massingale for hitchhiking near a freeway in San Diego
    County. Massingale was wearing a sheathed knife with a six- to eight-inch fixed
    blade. Officer McLean recalled the incident because Massingale had “crazy eyes”
    and appeared to be “a very scary individual.”
    In late August 1980, John “Shorty” Smith, also a native of Harlan County,
    Kentucky, met Massingale at an Arizona gas station. According to Smith,
    Massingale “looked like he was from my part of the country,” and he offered
    Massingale a ride to a mine in California for work. But Massingale claimed he
    was wanted for murder in California. Smith did not take Massingale seriously,
    and convinced Massingale to go to California, offering to eventually take him
    back to Harlan County. According to Smith, Massingale wore a four-and-one-
    half-inch Buck knife. Because the California mine was closed when Smith and
    14
    Massingale arrived, they drove to Los Angeles, and along the way picked up a
    second hitchhiker, Jimmy Joe Nelson.9
    According to Smith, during the drive to Los Angeles, Massingale talked a
    lot and bragged to him and Nelson about having cut someone’s head off.
    Nelson testified that, during the trip in Smith’s van, they discussed failed
    marriages and Massingale replied that if a woman treated you badly “you just cut
    their head off and get it over with.” Nelson described Massingale as having a dual
    personality that could shift unpredictably from being a nice person to being “one
    of the most violent people in the world.”
    Nelson saw Massingale carrying a knife with an 11- or 12-inch blade that
    he had strapped around his waist in a leather holster. When riding in Smith’s van,
    Massingale constantly practiced and played with the knife “like a kid with a toy.”
    Massingale repeatedly showed off how he could unholster the knife quickly, flip it
    through the air with his wrist, and get it to stick in a wood board at the back of the
    van. Because of Massingale’s personality and knife skills, Nelson was afraid of
    making Massingale mad while he played with his knife.
    After arriving in Los Angeles, Massingale took Smith and Nelson to a gay
    bar in Hollywood. According to Smith and Nelson, although Massingale was a
    handsome, “flashy dresser” and portrayed himself as “a ladies’ man,” he appeared
    to prostitute himself with various male patrons of the bar — leaving with each of
    them briefly and then returning with cash he shared with Smith and Nelson.
    9     Smith explained that, because Nelson suffered from seizures during the trip,
    Massingale did not like Nelson and tried to convince Smith to leave Nelson
    behind. At the time of his testimony, Nelson was incarcerated in Texas for the
    manslaughter of William Calvin Toups and had been previously convicted of
    numerous theft and forgery crimes.
    15
    At the bar, according to Nelson, Massingale later ingested “windowpane”
    LSD. After that point, Nelson described Massingale as talking nonstop with the
    “floodgates open” as he bragged about the things he had done. One of the things
    Massingale bragged about, according to Smith and Nelson, was killing a mother
    and her little boy, over a year earlier, in the spring of 1979. According to Smith
    and Nelson, Massingale claimed he had met a woman named “Sue Ann,” “Anne,”
    or “Suzanne” in San Diego and went to her home in East San Diego.10
    Massingale explained to Nelson that they had consumed a couple of drinks at her
    home and were sitting on the living room couch “making out,” but her little boy
    interrupted them, saying he needed to go to the bathroom.11 When the boy refused
    to go to the bathroom by himself, the mother got up to help the boy, which “pissed
    off” Massingale. Massingale said he grabbed “that bitch by the hair,” “worked
    on” slicing her throat, and then “worked on” the little boy so “he would never have
    to go to the bathroom again.” According to Nelson, Massingale claimed he killed
    the boy in the bathroom.
    The next day, Massingale decided to stay behind in Los Angeles and did
    not leave town with Smith and Nelson. Before they parted, however, Massingale
    gave Nelson some of his clothes, a pair of boots, and some other items. This
    included a striped brown-and-white silk shirt that appeared to have blood on it and
    10      Smith testified that he remembered Massingale mentioning the name
    “Anne.” In his 1981 interviews with police, Nelson said Massingale had referred
    to the victim by her full name “Suzanne Jacobs.” At trial, Nelson testified that
    Massingale referred to the victim as “Sue Ann.” Massingale did not describe the
    circumstances of how he met the woman.
    11     Smith testified that Massingale told him that the boy was “pestering” him
    and his mother about going to the bathroom and that he “shut the kid up” and cut
    the mother’s head off.
    16
    runs consistent with a woman’s fingernails having raked down the left sleeve.
    Massingale also gave him a set of his work boots. Nelson told police that
    Massingale wore engineer-type boots “all the time.”
    Soon after Nelson left Los Angeles and parted ways with Smith, Nelson
    became a suspect in a Texas killing. Chickasaw Police Detective Sergeant Harold
    Phillips arrested Nelson for that death in Alabama on December 6, 1980. Nelson
    assisted Alabama and Texas authorities in locating the other suspects in that
    killing,12 and also told them about the Jacobs killings.13 According to Detective
    Sergeant Phillips, Nelson told him that a man named “Johnny” had confessed to
    knife-slashing the throats of a woman and her child in San Diego in the bedroom
    of her white wood-frame home. Nelson mentioned a blue vehicle at the home.
    Nelson said Johnny and the woman had been drinking. At the time, Detective
    Sergeant Phillips knew nothing about the Jacobs murders. Detective Sergeant
    Phillips contacted San Diego Police Detective David Ayers and told him of
    Nelson’s statements.14
    12     These other suspects were Rochelle Coleman and David Ray Woods.
    13     At the time of the Jacobs murders, Nelson was in custody for various theft-
    related crimes.
    14     The San Diego Police Department’s homicide unit had a policy of
    withholding details concerning the circumstances of murders the unit is
    investigating so as to be able to identify suspects that would have information that
    only the actual perpetrator would know. According to Detective Gleason, in the
    present case, the unit did not publicly disclose the discovery of the bloody
    footprints in the home, the blood in and around the kitchen sink, or the theory that
    Colin was killed in the bathroom.
    17
    The authorities transported Nelson to Texas where Detective Ayers
    interviewed him in January 1981.15 Nelson described his encounter with
    Massingale and described his barroom confession. Nelson stated that he still had
    the items Massingale had given him, including the bloody shirt and the work
    boots. Nelson gave the officers permission to retrieve those items from his
    mother’s Alabama residence.16
    After locating Massingale in Harlan County, Kentucky, in mid-March
    1984, Detective Ayers and San Diego County District Attorney Investigator
    William Green traveled there to interview him. Ayers and Green met with
    Kentucky State Police Detective Denny Pace, who was familiar with Massingale,
    and they interrogated him the next day. According to Detective Pace, Massingale
    had a reputation for dishonesty in Harlan County.17
    15      In their first interview, Nelson told Detective Ayers that David Ray Woods
    was responsible for the Jacobs murders, but later claimed he said so only because
    he was angry that Woods had tried to blame him for the Texas killing. In his
    January 27, 1981, interview of Nelson, Detective Ayers seems to suggest that
    Woods had a solid alibi at the time of the Jacobs murders. But Woods and his
    girlfriend were investigated as possible suspects in the Jacobs killings. (See post,
    at p. 135.)
    16      Detective Sergeant Phillips later retrieved the bloody silk shirt from
    Nelson’s mother’s Alabama residence. It was as Nelson described, with runs and
    what appeared to be bloodstains. Phillips believed he had boxed the shirt and
    other items collected from the residence and Nelson and had sent the box to
    Detective Ayers in San Diego. But upon inspecting the same box before his
    testimony, he found it contained the other items but not the bloody silk shirt.
    17     The defense also offered Sidney Douglass, a Harlan County attorney and
    former judge advocate general, former county circuit judge, and former
    prosecutor, who testified that he had worked with Detective Pace in several cases
    over the years. He regarded Detective Pace as having a good reputation for
    honesty in the community.
    18
    Over the next five hours, Massingale admitted he had been in San Diego in
    the early summer of 1979 and that he had met Smith hitchhiking a year later. But
    he denied any involvement in the Jacobs murders, confessing to the murders, or
    ever carrying anything other than a small pocket knife. He also denied knowing or
    ever having met Nelson.
    During this first interview, Detective Ayers and Inspector Green showed
    Massingale four photographs related to the Jacobs murders. Two photographs,
    full-body shots of each victim as they appeared facedown in the bedroom, did not
    show their neck wounds. The other two photographs showed the Jacobs residence
    from the front and the side. Detective Ayers, Inspector Green, and Detective Pace
    each denied ever showing Massingale any additional photographs related to the
    Jacobs murders.
    The officers also intentionally withheld from Massingale various details
    surrounding the murders during this first interview, including the fact that the
    victims had nearly been decapitated. In fact, Detective Pace did not know details
    of the Jacobs murders, except that Colin had been killed in the bathroom. At one
    point, Massingale asked Detective Pace if he should get an attorney, but Detective
    Pace replied, “Johnny if you didn’t do anything wrong, I don’t feel like you need
    an attorney.” Massingale then voluntarily continued with the interrogation. But
    he later ended it by indicating that he wanted a lawyer.
    After the end of the first interview, Massingale said he wanted to speak
    with Detective Pace alone. In that discussion, Massingale asked Detective Pace
    what kind of sentence he faced and what he should do. Detective Pace told
    Massingale that death was the maximum penalty and that he should not admit to
    anything he did not do. Detective Pace explained that Detective Ayers and
    Inspector Green knew details about the crime that they had not disclosed during
    their five-hour interrogation. Massingale asked Detective Pace what those details
    19
    were, but Pace said he could not disclose the details without Ayers’s and Green’s
    permission. Massingale asked Detective Pace to get their permission to tell him
    those details.
    Detective Pace later spoke with Inspector Ayers, who gave him permission
    to tell Massingale that Colin had been killed in the bathroom and gave Pace a
    picture of the Jacobses’ bathroom to show Massingale. Detective Pace returned to
    Massingale and confronted him with this evidence and explained that they also
    knew he was lying about carrying a knife. Detective Pace said that Nelson had
    been in prison at the time of the murders, that Nelson told Pace that Colin had
    been killed in the bathroom, that the location of Colin’s murder had not been made
    public, and that, therefore, Massingale must have been present at the scene of the
    crime. According to Detective Pace, Massingale replied, “I am guilty.”
    According to Detective Pace, Massingale appeared relieved by his admission and
    became more talkative.
    Massingale then admitted to Detective Pace that he had been lying during
    the earlier interrogation. Massingale explained that he met “Sue Ann” in a bar,
    could not remember how he got to her residence, but recalled that she did not have
    a car. He had recognized the pictures of the Jacobses’ white house that the
    officers had shown him and remembered that a blue dune buggy was parked
    beside the home. Massingale told Detective Pace that he recalled sitting on the
    living room couch of Sue Ann’s home and pinching her leg, but that she smacked
    him in the face. Massingale said he then “went crazy” because he was high on
    LSD. He got up off the couch, and she told him to get out. The little boy told
    Massingale, “don’t hit my mommy,” and he remembered cutting both of them
    with a knife that he had holstered on his belt. He remembered cutting the little
    boy in the bathroom, washing up in either the bathroom or kitchen sink, and then
    leaving through the back door with the sound of dogs barking.
    20
    Massingale told Detective Pace he believed Sue Ann was about 27 years
    old and the boy was around five years of age. He said he went to the Salvation
    Army and got new clothes and then later buried the knife in the Mexican desert.
    He said he remembered Nelson because he was bothered by Nelson’s seizures. He
    also admitted giving Nelson one of his shirts.
    The following day, Massingale gave a tape-recorded confession to
    Detective Pace in which Massingale agreed with Detective Pace’s description of
    the circumstances of Massingale’s confession the night before. Massingale then
    largely repeated the same details about the murder that he had given Detective
    Pace the night before. Massingale explained that he was sorry, that he had never
    killed anyone before and that he would never hurt a child, but that the LSD made
    him nervous and “plum out of [his] mind.”
    Later that same day, Massingale gave a second tape-recorded confession
    with Detective Ayers and Inspector Green also present. In this confession,
    Massingale repeatedly said he was sorry for what he did. He explained that it was
    hard for him to remember the details of the crimes because he was high or drunk
    most of the time and because he suffered from memory problems. In addition to
    some of the details he had provided in the prior interrogations, he also correctly
    identified the Jacobses’ couch as being on the right side as one entered the front
    door. He remembered the mother had run from him and believed that he may have
    cut her in the kitchen. At the end of the interrogation, Inspector Ayers asked
    Massingale if he had anything else to say, and he replied, “I’m guilty.”
    Inspector Green and Detectives Ayers and Pace each testified that they did
    not ever threaten or yell at Massingale at any time during the interrogations.
    21
    (ii) The Temporary Residences of Massingale and Defendant in
    1979
    The defense presented evidence in support of its theory that Massingale had
    left the Love Insurance note at the crime scene because it must have been in
    clothing that defendant had left for donation to the Salvation Army.
    According to a chaplain of the San Diego Salvation Army rescue mission in
    downtown San Diego, Massingale stayed at the mission a few times in 1979.
    Massingale seemed out of place because he was more well-dressed than the typical
    transient. In addition to shelter, the mission provided free clothing to its residents.
    The residence hall in which defendant stayed in May 1979 was also
    associated with the Salvation Army. The hall was also in the same building as the
    Salvation Army rescue mission.18
    (iii) The MG
    The defense presented evidence to rebut the state’s theory that defendant’s
    mother’s MG was at the Jacobs house on the morning of the killings.
    One of the Jacobses’ neighbors, Jeanette Robertson, drove by the Jacobs
    residence around 9:00 a.m. on May 4, 1979 and two more times later that same
    morning.19 She did not see any car parked in the driveway on any of those
    occasions.
    18     In closing statements, the defense theorized that the Love Insurance note
    could have come from a piece of clothing that defendant had donated while he
    lived at the Salvation Army and that this clothing eventually could have been
    given to Massingale who dropped the note at the crime scene. In contrast, the
    prosecution theorized that defendant had met Massingale at the Salvation Army,
    and defendant had bragged about the killings to Massingale, providing him details
    that Massingale later repeated to Nelson and Smith.
    19      According to Robertson, Suzanne and her son Colin typically were early
    risers and they would spend their weekday mornings outside with Suzanne
    (Footnote continued on next page.)
    22
    Margaret Harris, who had seen a wine-colored or faded maroon sports car
    in the Jacobses’ driveway on the morning of the murders, did not tell police her
    belief that the car was an MGB until sometime in 1988.20 She also admitted that
    she could not distinguish amongst the various different models of MG — an
    MGA, MGB, or a Midget.
    In 1974, defendant’s mother, Patricia Katzenmaier, bought a used 1974
    purple MG Midget that was only a few months old at the time. According to
    Katzenmaier, from March 1979 until she sold the car in 1981, the Midget was
    parked in her garage and was not driveable. In late 1979 or early 1980, Curt
    Andrewson, a family friend of the Lucas family, saw the MG Midget in
    Katzenmaier’s garage. According to Andrewson, the car was purple and was
    inoperable because the engine was in pieces. Dennis Smith bought the MG
    Midget from Katzenmaier in 1981. According to Smith, the car was purple and
    did not run. He fixed the car, painted it red, and sold it in 1986.21
    (iv) Boot Print Evidence
    The defense presented evidence challenging the state’s theory that
    defendant had left the bloody boot prints found at the crime scene.
    (Footnote continued from previous page.)
    gardening while Colin rode his tricycle nearby. But on the weekday morning of
    the murders, she never saw them outside.
    20      According to Inspector Green, Harris claimed the car was an MG, but she
    later identified a photograph of a 1974 maroon MGB as being the same make and
    model of the car she had seen on May 4, 1979.
    21     The prosecution provided no evidence of what color the vehicle was in May
    1979, but it provided evidence of a December 1986 traffic stop, after Smith had
    sold the vehicle, in which the detaining officer described the vehicle as “black
    over maroon.”
    23
    Fire Captain Edward Fairhurst, who was the first emergency responder to
    walk inside the Jacobs residence on the day of the murders, testified during the
    prosecution’s case-in-chief that he was not wearing Vibram-soled boots that day
    and denied ever owning any such shoes. He also claimed that the bloody boot
    prints did not match the soles he was wearing that day.
    But Captain Fairhurst’s shoemaker, David Daywood, remembered resoling
    Fairhurst’s boots the month before the murders with Vibram soles and heels.
    Daywood recalled that Captain Fairhurst wore size 10 or 10 1/2 boots and that he
    applied new size 12 Vibram soles to his boots, which he trimmed down to fit the
    smaller boot size.
    In addition, defense investigator William Pon Cavege spoke with Captain
    Fairhurst in 1985, and showed him a photograph of a bloody boot print at the
    crime scene. According to Cavege, Captain Fairhurst admitted that the pattern
    looked similar to the soles he had been wearing that day and admitted that his
    shoemaker had put new soles on his boots shortly before the murders. A second
    defense investigator, Thomas Caldwell, testified that he contacted Captain
    Fairhurst in 1986, and Fairhurst admitted he was wearing Vibram-soled boots
    when he entered the Jacobs home. Captain Fairhurst testified that he was unaware
    of anyone ever checking or comparing his boots with the prints found at the crime
    scene. Captain Fairhurst had thrown away the boots in question by the time the
    defense investigators had first approached him about the boots.
    George Jackson, who worked alongside defendant in 1979 as a furnace
    operator at Precision Metal, described the floor conditions at the plant. He said the
    plant floor was covered in lubricants, steel grit, and steel shot used in the forging
    process. These materials would heavily soil the operators’ clothes and boots, with
    the materials getting stuck in crevices of the boot soles. Because of these
    conditions, the furnace operators had a changing room and lockers where they
    24
    stored their overalls and boots. According to Jackson, if someone tried to wear
    their boots outside the plant, they would ruin the carpets in their vehicle or at
    home.
    (v) Hair Evidence
    The defendant re-called hair comparison expert John Simms, who had
    testified for the prosecution but was unable to reach any strong conclusions as to
    whether the hairs recovered from the crime scene were consistent with defendant’s
    hairs or excluded him. According to Simms, because blond hairs typically exhibit
    a limited range of characteristics, they are more likely to appear similar from one
    blond person to another. Also, defendant’s hair could have changed in the five
    years between the homicides and when the samples were obtained from him.
    (vi) The Love Insurance Note
    The defense called David Oleksow, a handwriting expert for the San Diego
    County Sheriff’s Department crime laboratory. Oleksow examined the
    handwriting on the Love Insurance note on several occasions, both before and
    after the note had been rendered unreadable, as part of his normal casework for the
    laboratory. After defendant’s arrest, Oleksow compared defendant’s known
    handwriting samples with photographs of the Love Insurance note. He observed
    “numerous unexplained variations,” but also no “significant differences” between
    those samples and the note. Accordingly, Oleksow could not positively identify
    defendant as the author of the Love Insurance note, nor exclude him. Oleksow
    explained that the handwriting on the Love Insurance note had a limited amount of
    writing from which to make useful comparisons. Because he was dealing with a
    photograph of the note, he was unable to conduct a microscopic examination of
    the original or examine the fluctuations in embossing created by handwriting
    pressure. Oleksow, however, acknowledged that in a report dated late March
    25
    1985, he wrote that defendant was “probably responsible” for the handwriting on
    the Love Insurance note.
    c) Prosecution Rebuttal
    According to two close friends of Suzanne Jacobs, Bunnice Jacobs
    and Deborah Watts-Gaydos, Suzanne was not known to frequent bars alone and
    meet men.
    Inspector William Green, who was assigned to the Jacobs murders, wrote a
    report explaining that he had examined the boots of Fire Captain Fairhurst and his
    crew and determined they were different from the pattern on the footprints in the
    Jacobs house.
    2. The Homicide of Gayle Garcia
    The jury acquitted defendant of the December 8, 1981 homicide of real
    estate agent Gayle Garcia, who was killed inside the home she had advertised for
    sale or lease. We briefly summarize the evidence presented concerning this
    incident for purposes of evaluating defendant’s challenges to the consolidation of
    the crimes for trial and their cross-admissibility.
    a) Prosecution Evidence
    (i) Defendant’s Activities Before the Homicide
    In December of 1981, defendant worked as a manager at M & A Carpet
    Care, along with Frank Clark, his good friend and business partner. On the
    afternoon of December 8, 1981, defendant was not at work and Clark filled in for
    him.
    (ii) The Events Leading to the Homicide
    In 1981, Annette Goff owned a house in Spring Valley, San Diego County,
    with William Greene. The relationship between Goff and Greene had
    26
    deteriorated, creating animosity between them. Goff had obtained a restraining
    order against Greene that kept him out of the house and had filed a civil suit
    against him in a property dispute. Due to their estrangement, Goff decided to sell
    the house and hired her friend, Gayle Garcia, as her real estate agent.
    On December 8, 1981, the day she was killed, Garcia was at the house from
    4:00 to 6:00 p.m. to show it to prospective clients, having placed a newspaper ad
    listing the property as “rent to own.”
    Greene, who still had a key to the house, wanted to show the property to his
    friends that evening, but Goff refused. Over several telephone calls, Goff and
    Greene argued about allowing Greene’s friends to see the property. Goff
    eventually hung up on Greene and called Garcia at 5:35 p.m. to let Garcia know
    that she would be at the house in 20 minutes, and that Greene may be coming.
    Goff arrived at the house at approximately 6:05 p.m., with her brother Chris
    and one of her business employees. The front door was open and the phone was
    ringing as they entered the house. When Chris answered the phone, Greene was
    on the line asking him if Garcia was still there. Goff took the phone, and Chris
    began walking around the house looking for Garcia. He discovered Garcia’s body
    lying on the floor of the dark, unlit bedroom.
    (iii) The Scene of the Crime
    Homicide Detective Thomas Streed, called to investigate Garcia’s death,
    found Garcia’s body lying on the floor atop vacuum cleaner tubing. A broken
    fingernail of Garcia’s was found in the hallway just outside the bedroom. All the
    blood at the scene was under Garcia’s body or in the immediate vicinity. Her
    pants had two parallel smears running down them that appeared consistent with
    wipe marks from a bloody knife blade.
    27
    (iv) The Forensic Evidence
    Dr. Howard S. Robin performed Garcia’s autopsy on December 9, 1981, at
    the San Diego coroner’s office. The body had a large, gaping neck wound,
    extending from the angle of the jaw on the left side all the way across the neck to
    the angle of the jaw on the right side. The wound went through her carotid arteries
    and jugular veins on both sides, cut through the neck muscles and the membrane
    between the hyoid bone and the top of the thyroid cartilage, and nicked the second
    cervical vertebrae on her right side. Garcia ultimately bled to death due to
    laceration of the carotid arteries.
    In addition to the neck wound, there were superficial abrasions on the left
    side of Garcia’s forehead, a one-inch abrasion in the mid-forehead region, and one
    on her nose. There was an abrasion near her left ear and scratches or lacerations
    under her chin. Small, fine petechial hemorrhages were found over the
    conjunctiva of her eyes. These hemorrhages could have been caused by choking.
    When a 1985 search of defendant’s residence resulted in the seizure of a
    sheath from a model 112 Buck knife, Detective Streed compared photographs of
    the blood smears from Garcia’s pants with an exemplar model 112 Buck knife and
    concluded that the stains were consistent with that model. Streed did not compare
    the smears with any other type of knife and admitted that the model 112 was a
    relatively common knife.
    Criminalist Ron Barry examined the 12 usable latent fingerprints lifted
    from the crime scene, but none matched defendant. He did not examine Garcia’s
    broken fingernail for skin, blood, or other trace evidence.
    b) Defense Evidence
    On the night of the homicide, while she was standing outside her home as
    the police investigated, Goff saw a motorcyclist go down her street who looked
    like William Greene’s brother, Richard, who lived with Greene nearby. Sergeant
    28
    Steven Blackwood of the San Diego County Sheriff’s Department noted that the
    motorcyclist seemed very interested in the scene and almost stopped in front of the
    house. As Blackwood wrote down the license plate number, the motorcyclist sped
    off. Blackwood followed, stopped the motorcyclist, and identified him as Richard
    Greene.
    Richard Greene gave Sergeant Blackwood his address, and at 1:00 a.m.
    Detective Streed picked William Greene up for questioning at the police station.
    William Greene owned a Buck knife, but police never seized it for testing.
    Later that day, in the afternoon, Greene called Goff, and they discussed the
    events from the night before. During this call, Greene denied having ever said he
    was going to their residence while Garcia was there.
    Parker Bell, a forensic expert, used eight different kinds of knife blades to
    wipe human blood on pants, and compared those smears with the smears found on
    Garcia’s pants. He believed that none of the eight knife blades could be
    eliminated from having made the stains and that any similar type of knife could
    have left the smears.
    Defendant presented the testimony of several relatives and family friends,
    including his mother, his former stepfather, brother, sister, and brother-in-law,
    who said that defendant was at a family birthday party on the evening of
    December 8, 1981. They testified that defendant arrived around dusk with his
    girlfriend and future wife, Shannon, and their children. They stayed two to three
    hours, leaving after dark. Defendant’s departure from the party was memorable
    because it was sparked by a derogatory comment made by his brother. The trial
    court took judicial notice that December 8, 1981, was a Tuesday and the sun had
    set at 4:43 p.m.
    Officer Thomas Caldwell drove the route from the house where the family
    birthday party was held to the house where Garcia was killed. The houses were 11
    29
    miles apart. Caldwell made the trip between 4:30 and 4:45 p.m. It took him 42
    minutes because the route was congested with traffic.
    3. The Attempted Homicide of Jodie Santiago Robertson
    a) Prosecution Evidence
    (i) Defendant’s Residence and Vehicle at the Time of the
    Crimes
    In early 1983, defendant moved to the Spring Valley area and bought a
    house on Casa de Oro Boulevard. The home had a semicircular driveway with
    concrete steps leading to a porch. That same year, defendant bought a black 1983
    Datsun 280ZX with a manual transmission. He attached to it a customized license
    plate that read “CMC INC 2,” which referred to the name of his company, Carpet
    Maintenance Company, Inc. At the beginning of June 1984, one of defendant’s
    employees, Richard Adler, moved into a spare bedroom in defendant’s house,
    living out of boxes he kept there.
    (ii) The Abduction
    On the evening of June 8, 1984, 34-year-old Jodie Santiago Robertson, who
    was in the San Diego area visiting her brother, left a restaurant in El Cajon
    sometime between 10:30 and 11:00 p.m. to walk back to her brother’s apartment.
    As Robertson passed the apartment complex’s parking lot, a man, whom she
    eventually identified as defendant, came up behind her, placed a knife at her
    throat, and told her that if she ran or screamed he would cut her throat. Defendant
    led Robertson to a dark-brown sports car, similar to a Datsun 280ZX, with louvers
    on the back window. The car was already running and the driver’s side door was
    ajar. Robertson noticed the license plate, but could remember only that it was
    comprised of three numbers and three letters.
    30
    Defendant forced Robertson through the driver’s side door, and she became
    seated partially in the center console area and partially in the passenger seat. The
    seats had sheepskin seat covers. Defendant placed the knife in front of him on the
    dashboard, behind the steering wheel. Defendant drove the vehicle with his left
    hand on the steering wheel while keeping his right hand wrapped around
    Robertson’s right shoulder and neck. During the drive, Robertson was also able to
    note that defendant had a mustache, blond hair, and “bulging” blue eyes. She did
    not remember if the car had a stick shift and she did not notice defendant shifting
    gears as he drove.
    Defendant drove up to a house with a semicircular driveway. He led
    Robertson out of the car and up some stairs to the front door. Defendant led her to
    a bedroom with boxes where he tied her hands behind her. He took Robertson into
    another bedroom and placed her on a bed. When Robertson tried to lift up her
    head to cough, defendant began choking her until she lost consciousness.
    Robertson did not remember anything after that point.
    (iii) The Rescue of Robertson
    The following morning at approximately 6:40 a.m., two women on a
    morning walk discovered Robertson lying in the brush and weeds on the side of
    the road at a residential intersection about a mile from defendant’s home. She was
    naked below the waist and had blood all over her face and down her shirt.
    Robertson was moaning and making gurgling sounds. She had a severe cut across
    the front of her neck and deep cuts to her fingers. There was a significant amount
    of blood on the paved portion of the roadway and on the weeds in the overgrowth
    at the side of the road, suggesting that her injuries had been inflicted at the scene.
    At the hospital, a vascular and trauma surgeon examined the extent of
    Robertson’s neck wounds. The wound was above her Adam’s apple and extended
    31
    into the larynx above the vocal cords. The wound reached back to the bones of
    her neck vertebrae. Robertson’s left external jugular vein was severed but the
    carotid artery, the right external jugular vein, and both internal jugular veins
    remained intact. The wound was consistent with a cutting instrument having been
    used with a sawing or carving type motion. Below the wound, Robertson’s neck
    had bruising consistent with a smooth ligature having been applied with enough
    force to constrict her neck.
    Robertson’s head had a severe skull fracture extending from behind her
    head nearly across to each of her ears. Along the fracture, just behind each ear,
    portions of the skin on her scalp had split open. The cuts to Robertson’s fingers
    on her right hand went through the tendons to the bone.
    Surgeons successfully reconstructed Robertson’s neck, and she was
    released from the hospital 18 days later.
    (iv) Defendant’s Sale of His 280ZX
    Three days after Robertson’s abduction, the local newspaper ran an article
    about Robertson’s abduction and her survival. Two days later, defendant traded
    his Datsun 280ZX for a Toyota pickup truck. Defendant told his friend and
    employee, Richard Adler, that he could no longer afford the insurance and
    payments on the car. Adler helped defendant remove the personalized license
    plate and sheepskin covers from the 280ZX’s seats and transferred them to the
    pickup.
    (v) Robertson’s Identification of Defendant, His Residence,
    and His Vehicle’s Make and Model
    Following the murder of Anne Swanke (see post, at pp. 41-49), in mid-
    December 1984, Robertson returned to San Diego at the request of the San Diego
    Police Department to view a photo lineup. After examining the photo spread,
    Robertson identified a picture of defendant as that of her attacker.
    32
    Robertson had previously told detectives that she would recognize “on
    sight” the house to which she had been abducted. From memory, she also drew a
    small diagram of the interior of the house and the circular driveway. Following
    her identification of defendant’s photograph, detectives drove Robertson to the
    location of her brother’s apartment complex, but she was unable to retrace the
    route of her abduction. The detectives also purposefully drove by defendant’s
    residence, but Robertson did not alert them to the house. Later that morning, the
    detectives asked Robertson to draw a larger sketch of the house from her memory,
    and she again drew a circular driveway with additional detail of the interior of the
    house.
    In the afternoon, the detectives again took Robertson to defendant’s
    neighborhood. Detective Robert Fullmer slowed the car as they drove by
    defendant’s house. Robertson turned her head and looked at the house while
    turning slightly in her seat. She asked Detective Fullmer to do a U-turn and drive
    past the house again. On this last pass, Detective Fullmer again slowed the
    vehicle, and Robertson turned in her seat again while staring at the house.
    Detective Gary Fisher asked her if she saw something that she recognized, and
    Robertson identified defendant’s house as the one to which she had been taken.
    Robertson identified several photos of a Datsun 280ZX as being the same
    make and model vehicle in which she was abducted. She also identified several
    photos of defendant’s actual 280ZX as being consistent with the vehicle used on
    the night of her assault, except that the rear window louvers were missing. She
    also identified a sheepskin cover taken from defendant’s pickup truck as being
    consistent with the covers used in the vehicle in which she had been abducted.
    When taken to see the 280ZX actually owned by defendant at the time of her
    abduction, however, Robertson could not positively identify it as the vehicle used
    in her abduction.
    33
    (vi) The Datsun 280ZX’s Louvers and Manual Transmission
    Two of defendant’s neighbors testified that they had often seen defendant’s
    280ZX parked outside and that it had rear window louvers. After defendant traded
    in the 280ZX, it was subsequently sold to Michael George. According to George,
    the 280ZX had no rear window louvers when he took possession of it, but he had
    to clean off a rubbery, glue-like substance adhering to the four corners of the rear
    window. One type of aftermarket rear window louver for a 280ZX could be
    installed with a clip and adhesive on the glass. It could be removed without
    leaving any permanent damage to the car.
    In order to explain why Robertson did not recall defendant making any gear
    changes during her abduction, San Diego County district attorney investigator
    William Green drove the same 280ZX owned by George, and previously by
    defendant, from the site of Robertson’s abduction to defendant’s home. Green
    drove the entire route in second gear without use of the gear shifter. He was able
    to follow the posted speed limits and traffic signals and signs without stalling the
    vehicle.
    b) Defense Evidence
    (i) The Effects of Trauma on Robertson’s Memory
    When paramedics brought Robertson to the hospital, her blood pressure
    was 70 over 0, suggesting that the heart was unable to pump a normal volume of
    blood and oxygen to the brain. According to Dr. Sheldon Zigelbaum, a physician
    and psychiatrist, this loss of oxygen, if significant in duration, can cause damage
    to brain cells and result in memory impairment. During her recovery in the
    hospital, Robertson displayed significant signs of psychomotor retardation,
    meaning that she spoke and moved slowly.
    After Robertson’s release from the hospital, both a social worker and a
    physician-psychiatrist diagnosed Robertson as suffering from posttraumatic stress
    34
    disorder. According to Dr. Zigelbaum, closed-head injuries and diagnoses of
    posttraumatic stress disorder are related and can increase the possibility of
    memory loss. Closed-head injuries can impair a person’s ability to perceive,
    remember, and contemplate events and surroundings and to use that information
    effectively later.
    According to her treating physician-psychiatrist, Dr. Wendy Freed,
    Robertson had expressed depression and suicidal thoughts, but later expressed
    happiness and relief after she believed that her assailant had been found and
    arrested.
    (ii) Defendant’s Datsun “280ZX”
    Four of defendant’s former employees, William Johnson, Mitchell Hoehn,
    Dennis Adair, and Loren Linker, testified they worked for Carpet Maintenance
    Company, Inc., in 1984 and were familiar with defendant’s “280ZX.” They all
    agreed that the car did not have louvers on the back window. Adair, in particular,
    testified that he had washed defendant’s car a number of times at work and there
    was nothing on the rear that blocked him from directly washing the rear window.
    According to Hoehn, he had been a passenger in defendant’s 280ZX on
    several occasions. The car had a computerized female voice that alerted when the
    door was opened. Robertson heard no such sounds when the doors opened during
    her abduction.
    According to loan records, after defendant traded the 280ZX for the Toyota
    pickup truck, his monthly car payment was reduced from $412.23 to $287.11.
    (iii) Defendant’s Alibi
    Loren Linker and his wife testified that defendant visited them on the night
    of Robertson’s abduction on June 8, 1984. Loren Linker testified that he and
    defendant arrived at the Linker residence about 9:00 p.m., and defendant left
    35
    around 11:00 p.m. to midnight.22 The visit was memorable because the Linkers
    had a new chair delivered that same day, and defendant had commented on how
    nice it was.
    (iv) Other Defense Evidence
    According to Detective Fullmer, in the final drive-by of defendant’s house,
    just before Robertson identified it as the place to where she had been abducted, he
    heard someone in the vehicle say “this house” or “what about this house?”
    Detective Fisher had previously stated that it was possible that he had made such
    statements before Robertson made a positive identification of the house.
    At the hospital, a rape kit was performed on Robertson. Vaginal swabs
    taken from that examination tested presumptively positive for the presence of
    sperm cells, and criminalist Randall Robinson visually detected the presence of
    sperm cells. The ABO blood type test results from the vaginal swabs neither
    included nor excluded defendant as the donor of the sperm cells. In the opinion of
    Dr. Phillip Miller, an emergency room physician familiar with rape kits, the
    detection of sperm cells in the vaginal swabs indicated that sexual intercourse
    could have occurred as early as within minutes or as late as one to two days prior.
    c) Prosecution Rebuttal
    Defendant could not be ruled out as contributing the seminal fluid and
    sperm found on the two deep vaginal swabs from Jodie Robertson because both
    defendant and the swabs tested as nonsecretor — that is, one whose blood-type
    antigens are not secreted into bodily fluids.
    Deputy Nancy Zuniga was present when Robertson identified defendant’s
    house from a police vehicle. She testified that, as Detective Fullmer drove past
    22     Robertson was abducted between 10:30 and 11:00 p.m. that night.
    36
    defendant’s house, Robertson looked at it intently. Detective Fullmer made a U-
    turn and drove past the house again, and slowed down upon Robertson’s request.
    Robertson then identified defendant’s home as the house she had been taken to,
    and she listed the things about the house that she recognized, including its color,
    its concrete steps, and its circular driveway with a tree. According to Deputy
    Zuniga, no one in the vehicle had guided Robertson’s attention to the house prior
    to her identifying it.
    4. The Homicides of Rhonda Strang and Amber Fisher
    With 11 of 12 jurors voting in favor of conviction, the jury was unable to
    reach a verdict concerning whether defendant murdered Rhonda Strang and
    Amber Fisher on October 23, 1984. The trial court declared a mistrial as to those
    counts, and the court later granted the prosecutor’s motion to dismiss these
    charges. Again, we briefly summarize the evidence presented regarding this
    incident for purposes of evaluating defendant’s challenges to the consolidation of
    the crimes for trial and their cross-admissibility.
    a) Prosecution Evidence
    (i) Defendant’s Relationship to the Strang Family’s Narcotics
    Dealing
    At the time of her death, 24-year-old Rhonda Strang was married to Robert
    Strang, and they had a baby named Jessica. Robert used marijuana, cocaine, and
    methamphetamine. To Rhonda’s dismay, Robert began selling drugs out of their
    house. Defendant’s friend and employee, Richard Adler, was Rhonda’s brother
    and he introduced defendant to the Strang family. Occasionally, defendant would
    visit the Strang home to purchase drugs.
    Rhonda was afraid of Robert’s drug activity and of one of his suppliers.
    Rhonda became very conscious about security at home and would compulsively
    37
    keep the doors and windows locked, and would check to see who was at the door
    before opening it. Rhonda considered divorcing Robert and kept a diary of the
    drug transactions. She believed that the house was being watched.
    (ii) The Events Leading to the Killings
    Because of a 48-hour jail commitment stemming from a drunk driving
    conviction, defendant was supposed to report to the San Diego County detention
    facility at Descanso for work credit on October 23, 1984. But defendant asked to
    reschedule for a later date, claiming that he had a large carpet job on October 23.
    According to the carpet company’s dispatch logs, however, the large carpet
    cleaning job scheduled for October 23 had been completed three days earlier. On
    the morning of October 23, 1984, defendant called in sick at his carpet company.
    On the morning of October 23, 1984, Robert Strang arrived for work
    around 8:00 to 8:30 a.m., and remained there until 3:30 p.m. Robert’s foreman,
    William Ralls, regularly took special note of Robert’s presence at work because
    Robert had a reputation for sneaking off the job site without permission.
    Between 9:00 and 9:30 a.m. that morning, Gregory Fisher, a long-time
    friend of Rhonda’s, left his three-year-old daughter Amber with Rhonda for her to
    babysit while he was at work. In the early afternoon, Rhonda’s five-year-old
    daughter, April, came home from school and discovered the bodies of her mother
    and Amber Fisher. April ran to a neighbor’s home. Emergency responders
    arrived around 1:30 p.m.
    (iii) The Scene of the Crime
    Arriving firefighters found the bodies of Rhonda and Amber. They also
    found Rhonda’s baby daughter, Jessica, inside a playpen in the living room,
    lethargic, but unharmed.
    38
    Detective Robert Fullmer examined the crime scene. He found no signs of
    forced entry. All of the doors to the house were locked — except the door
    between the kitchen and the locked garage. Inside the house, Rhonda Strang was
    lying on her back on the living room floor with her throat cut from ear to ear and
    with some abrasions on her neck. Amber Fisher was lying on her side next to the
    doorway leading out the other side of the house. Her throat also had been cut.
    (iv) The Forensic Evidence
    Dr. Robert Bucklin performed the autopsies on both Rhonda and Amber.
    Rhonda’s gaping neck wound extended across the front part of her neck,
    and it transected through the structures of the neck, including both carotid arteries,
    all the jugular veins, and the larynx. There were cutting marks penetrating the
    cervical vertebrae. Based on the borders of the wound, the cuts appeared to have
    been made from her right to her left. Dr. Bucklin believed that the skin wounds
    and marks on the cervical vertebrae revealed at least five distinct cutting strokes.
    Rhonda’s neck had prewound abrasions consistent with her gold necklace
    having been used to strangle her. The skin on her face and the whites of her eyes
    had a number of small, superficial hemorrhages consistent with strangulation.
    Rhonda’s head showed suffusion, a dusky color that is consistent with choking. In
    addition, she had a bruise on her right shoulder.
    Amber’s gaping neck wound also appeared to have been cut from her right
    to her left. The wound severed the larynx, the carotid arteries, and the jugular
    veins. Some of her cervical vertebrae had cutting injuries. The skin on Amber’s
    neck indicated that the wound was cut using more than one stroke.
    Amber had a cut through the tip of her finger. Like Rhonda, Amber also
    had a bruise on her right shoulder.
    39
    b) Defense Evidence
    (i) Domestic Violence in the Strang Household
    Several witnesses testified concerning incidents of violence against Rhonda
    by her husband Robert.
    At a party, a family friend saw Robert grab Rhonda by the throat and say,
    “I am going to kill you, bitch.” Later, the friend saw Rhonda with bruises on her
    shoulder and scratches on her neck, which Rhonda claimed were caused by Robert
    beating her up.23
    On July 8, 1984, a neighbor heard a loud argument from the Strang house
    and eventually heard a woman screaming, “Help me. Help me. He’s trying to kill
    me,” followed by the sounds of pounding and breaking glass.
    Friends of the Strangs reported seeing Rhonda on occasions with a black
    eye and bruises on her face and arms. They testified that Robert had an explosive
    temper and would often threaten her with a gun. On one occasion in August 1984,
    a roommate saw Robert threaten Rhonda with a gun. The roommate called the
    police, resulting in Robert’s arrest.
    According to Rhonda’s daughter, April, on the night before her mother’s
    murder, Rhonda and Robert had an argument.
    (ii) Rhonda’s Fear and her Documentation of Robert’s
    Narcotics Activities
    In the summer of 1984, Rhonda began cooperating with San Diego Police
    Detective Dale Kitts concerning her husband’s drug activities, offering
    information regarding Robert’s supplier. Rhonda told several of her friends that
    she was covertly tracking Robert’s activities by keeping a diary, tapes of phone
    23     Rhonda’s statement was not admitted for the truth of the matter asserted,
    but instead to show her state of mind and to explain her conduct.
    40
    conversations, and a list of drug dealers and drug deals. Rhonda expressed her
    fear of Robert and his supplier to several friends and family members. In the
    weeks before her murder, she repeatedly expressed her belief that she was being
    followed and was going to be killed because she knew too much about the
    narcotics activities.
    Following the murders, Detective Fullmer searched the Strang house but
    did not locate Rhonda’s diary, cassette tapes, nor any list of names of people
    involved with Robert’s drug activities.
    (iii) Other Evidence
    Robert collected knives, would frequently sharpen them, would often carry
    a Buck knife on his belt, and sometimes concealed knives in his boot.
    Dr. Cyril Wecht, a specialist in anatomic, clinical and forensic pathology,
    testified that the direction of the neck wounds on Rhonda and Amber suggested
    that the assailant was left-handed.
    5. The Homicide of Anne Swanke
    a) Prosecution Evidence
    (i) Defendant’s Activities Before the Homicide
    On the evening of November 19, 1984, defendant and his business partner,
    Frank Clark, left work in defendant’s truck and went to a bar, where they drank
    several beers and consumed crystal methamphetamine. They then drove to
    Clark’s home around 10:00 to 10:30 p.m. where they drank more beer. The night
    was memorable to Clark and his wife, Cecilia, because she was watching the
    concluding part of the television miniseries “Fatal Vision.” Defendant stayed
    through the end of the program at 10:58 p.m. and left the Clark residence at
    approximately midnight or thereafter.
    41
    (ii) The Abduction of Anne Swanke
    On the evening of November 19, 1984, 22-year-old Anne Swanke was
    visiting her boyfriend, Gregory Oberle, near the San Diego State University
    campus. Before Swanke left Oberle’s apartment between 12:30 a.m. and
    1:00 a.m. on November 20, she mentioned to him that her Dodge Colt was low on
    gasoline.
    On that night, Gale Graham was an employee of a gas station on Jackson
    Drive, near the intersection with Fletcher Parkway, in La Mesa. Sometime after
    midnight, Graham encountered Swanke, who walked in with a gas can and
    purchased gasoline. Swanke then left on foot.
    Soon thereafter, Richard Leyva, while driving home, was stopped at a
    traffic light at the intersection of Jackson Drive and Fletcher Parkway. Leyva saw
    a car parked at a nearby curb and saw someone bent over at the rear of the car as if
    pouring gasoline into the filler. Leyva looked away momentarily and when he
    looked back, he saw another vehicle had parked behind the first one, and it had a
    license plate with an unusual combination of letters, “TNCCNC,” “CNCTNC,” or
    possibly “CNCINC,” plus a number. As Leyva made his turn and passed the
    vehicles, he noticed the silhouette of two people who appeared to be in an
    embrace, although he briefly considered that it might be a kidnapping.
    In the early morning hours of November 20, 1984, Officer Charles Drake of
    the La Mesa Police Department learned from the California Highway Patrol that a
    Dodge Colt had been abandoned at the intersection of Jackson Drive and Fletcher
    Parkway. When he arrived at the car, Officer Drake opened the car door and
    retrieved Anne Swanke’s wallet from the passenger seat. On the driver’s side rear
    corner of the trunk lid were Swanke’s car keys, a flashlight, and the gas tank cap.
    The gas tank flap was open, and a gas can was on the ground.
    42
    (iii) Defendant’s Facial Scratches and the Discovery of Anne
    Swanke’s Body
    On the morning of November 20, 1984, defendant called Frank Clark and
    said that he needed to take a week off work because he had gone to a bar after
    leaving Clark’s home and someone there had hit him with a beer mug.
    Defendant’s roommate, Richard Adler, saw defendant that morning and observed
    fresh scratches on his forehead and both sides of his face and cheeks. The
    scratches were still bleeding, and Adler commented to defendant that he looked
    like he had been run over by a truck. Defendant told Adler that he had been in a
    bar fight the night before and was hit in the face by a beer mug or pitcher.
    Another roommate, Vicky Johnson, also noticed the scratches on defendant that
    morning.
    Defendant appeared at work on Friday, November 23, 1984, and Frank
    Clark noticed that defendant had deep scratches on the left side of his face that had
    begun to heal. They were about four inches long and started from his eyelid and
    went down his cheek and off his chin. Two advertising representatives who
    visited the carpet cleaning business that day also noticed the scratches, and
    defendant told them that he received them during a bar fight.
    The following day, on the morning of November 24, 1984, James McNelly
    was walking in the hills near his Spring Valley home and discovered Swanke’s
    body in a rough, rocky, steep, remote area about two miles away from defendant’s
    home. McNelly returned home and called the police.
    (iv) The Scene of the Crime
    San Diego County Sheriff’s Detectives Robert Fullmer and Craig
    Henderson arrived at the scene. Swanke’s body was lying facedown in the mud
    near the bottom of a steep, rocky hill. Except for socks, Swanke’s body was nude
    from the waist down. Around her neck was a silver choke chain, like one used to
    43
    leash a dog. After rolling the body over, Detective Henderson observed a severe
    cut to Swanke’s throat.
    Swanke’s shirt, bra, and sweater vest had been sliced through the middle,
    exposing her upper torso. Her pants were a few feet away and were still zipped
    and buttoned but had been sliced through along the zipper to the crotch area. Her
    shoes were scattered further up the hill. Her underpants were also found further
    up the hill. Based on Detective Henderson’s experience, it appeared the body had
    been there several days.
    (v) The Forensic Evidence
    Dr. Katsuyama performed the Swanke autopsy. Swanke’s neck wound was
    large and gaping, extending from behind the right ear downward to the upper
    portion of the neck and to the left side. The wound cut through the neck muscles
    around the larynx, the larynx itself, the esophagus, the wind pipe, and the carotid
    vessels and jugular veins on both sides of the neck. Cutting marks penetrated the
    cervical vertebrae and the connective tissue holding the backbone together. Based
    on the status of the skin around the wound, there appeared to be at least seven
    distinct and separate sawing-type cuts on the left side, and at least four separate
    cuts on the right side of Swanke’s neck.
    Discolorations and marks on Swanke’s neck were consistent with the dog
    chain having been pulled tightly in an upward direction around her neck. Swanke
    had an injury to her tongue suggesting that she had bitten it while being choked
    with the dog chain before her death. Her body also had scrapes, primarily on her
    buttocks and thighs, as if she had been dragged across the ground or had fallen
    over rough terrain. Dr. Katsuyama believed that the scratch injuries occurred
    shortly before or after her death.
    44
    Based on the presence of small insect larvae on the trachea, the partial
    dehydration of the eyes, and the cool weather of the preceding days,
    Dr. Katsuyama estimated that Swanke had been dead for at least 48 hours and
    probably longer. However, Dr. Katsuyama could not determine the exact date and
    time of Swanke’s death.
    Dr. Katsuyama also took genital swabs for analysis, but tests were unable to
    confirm the presence of semen.
    According to Deputy Frederick Freiberg, Swanke’s fingernails had foreign
    debris consistent with blood and possibly skin, so he clipped the nails and
    collected them for further analysis. The fingernails were sent to Serological
    Research Institute (SERI) for testing. Brian Wraxall, a forensic serologist with
    SERI, analyzed the fingernails, as well as blood samples taken from defendant, his
    wife, Shannon, Jodie Robertson, and Swanke.
    Upon examination, Wraxall noticed blood present on most of the nails
    clipped from Swanke’s left hand. One fingernail, labeled L2, held tissue-like
    material that stretched out like an accordion from a half-inch to three-quarters of
    an inch. Blood from that fingernail clipping, and from another labeled L4, tested
    as type A blood with enzyme protein PGM subtype 2+1+, which was inconsistent
    with Swanke but consistent with the blood type of defendant.
    Wraxall also tested for two genetic markers found in blood — GM and KM
    (gamma marker and kappa marker) antibodies. Two other fingernail clippings
    from Anne Swanke, one from each hand, labeled L1 and R4, tested positive for
    GM allotype genetic markers that were consistent with a mix of Swanke’s and
    defendant’s blood. KM analysis of the fingernails was inconclusive.
    Based on the blood characteristics in the fingernail clippings R4, L1, L2,
    and L4, which matched defendant, Wraxall stated that blood from only
    45
    approximately 1 in 69 Caucasians, 1 in 547 Blacks, and 1 in 197 Hispanic/Native
    Americans would share the same characteristics.
    After a search and seizure of items from defendant’s truck, criminalist
    Charles Merritt tested a bloodstain found on the passenger side of a sheepskin seat
    cover. The stain tested as type O blood, which was the same blood type as
    Swanke, but different from defendant and his wife, who were both type A.
    Marilyn Fink of the San Diego County Sheriff’s Department ran further
    tests on the sheepskin bloodstain searching for certain blood proteins. Tests done
    at SERI verified Fink’s results and tested for additional proteins and genetic
    markers. The blood proteins and genetic markers in Swanke’s blood were
    consistent with the tests of the sheepskin bloodstain. Those results were
    inconsistent with the blood of defendant, his wife, and Jodie Robertson.
    According to Wraxall, the blood characteristics derived from the bloodstained
    sheepskin occur in only approximately 1 in 4,794 Caucasians, 1 in 5,875 Blacks,
    and 1 in 444 Hispanic/Native Americans.
    (vi) Other Evidence
    Pursuant to a search warrant, sheriffs searched defendant’s house and
    recovered several items related to hunting knives. One of the items was a sheath
    for a model 112 Buck folding knife with a 4 1/4-inch blade, and the sheath had
    significant signs of wear. Sheriffs also located a box labeled “Buck Knife, Special
    Model 119.” In addition, they recovered a Buck fixed-blade knife and sheath.
    From a tool box found in defendant’s truck bed, they also recovered a fillet knife
    used to skin fish. None of those items had evidence of blood.
    In December 1984, San Diego County Sheriff’s Detective Craig Henderson
    interviewed defendant’s wife, Shannon Lucas. Deputy Henderson showed
    Shannon Lucas the dog choke chain that had been around Swanke’s neck. Upon
    46
    seeing the dog collar, Shannon Lucas appeared visibly shaken and said that it
    belonged to the couple’s recently deceased dog.24
    At the time of defendant’s arrest on December 16, 1984, nearly a month
    after Swanke’s abduction, Detective Henderson noticed healed scratches on
    defendant’s face. He had a photograph taken of defendant’s face to document the
    injuries.
    b) Defense Evidence
    (i) The Forensic Evidence
    Hermann Schmitter, an expert in forensic serology from the
    Bundeskriminalamt (the German equivalent of the FBI), challenged the state’s
    serological evidence concerning the sheepskin bloodstain and the victim’s
    fingernails. According to Schmitter, criminalist Charles Merritt’s and SERI’s
    ABO testing of the sheepskin stain was unreliable. He criticized Merritt for failing
    to document what technical procedures, if any, Merritt used to test the stain. In
    Schmitter’s opinion, Merritt and SERI should have tested the sample twice and
    reported only consistent results.
    Schmitter challenged SERI’s ABO testing of the fingernails, also believing
    that duplicate testing was required to verify the results. Schmitter reviewed the
    photos of the gel slabs SERI used to identify the presence of various blood
    proteins and genetic markers in this case. He believed there were no reportable
    results in the GM and KM genetic marker tests. He disagreed with some of
    SERI’s interpretations of the blood protein results for the samples taken from
    Swanke, Shannon Lucas, and defendant.
    24     Shannon Lucas died unexpectedly before defendant’s trial. The jury heard
    this small portion of Shannon’s taped interview with Detective Henderson.
    47
    The parties stipulated that FBI Special Agent William Eubanks would
    testify that all FBI serology examiners must have at a minimum a bachelor’s
    degree from a four-year college with a major in chemistry or biochemistry.
    Eubanks would testify that the FBI required the use of controls and duplicate
    testing for the kind of serology testing employed in this case. In addition, the
    results must be interpreted by a second examiner, and, if there is disagreement, the
    result is deemed inconclusive.
    Two criminal defense attorneys who had worked with Brian Wraxall (the
    head of SERI) in another capital case testified that they believed Wraxall was not
    honest.
    Criminalist Charles Merritt found two foreign pubic hairs on Swanke’s
    body, one from a pubic combing and one from her left hip. They did not match
    her hair or defendant’s hair. John Simms, the San Diego Police
    Department criminalist and hair comparison expert, reached similar conclusions,
    and he further concluded that the hairs did not match samples from Swanke’s
    boyfriend.
    None of the latent fingerprints found on the windows of Swanke’s vehicle,
    the gas tank flap, or the gas can matched defendant’s. The identifiable latent
    prints were made by Swanke or Michael Quinn of the La Mesa Police Department.
    (ii) The Dog Chain
    James Boyd, general manager for Hartz Mountain pet supplies, examined
    the dog chain found around Swanke’s neck. He recognized it as a chain Hartz
    would distribute to pet stores and supermarkets. According to his company’s
    business records, in 1982, 34,468 chains of similar type were sold in California in
    three lengths. In 1983, 36,870 were sold and in 1984, another 33,833 were sold.
    Boyd also testified that several other companies sold similar types of dog chains.
    48
    Kevin Chess, a private investigator, went to various stores and
    supermarkets in San Diego County. He found several chains similar to the one
    found around Swanke’s neck.
    (iii) Other Evidence
    Vicky and William Johnson lived at defendant’s residence in November
    1984. On the morning following Swanke’s disappearance, neither noticed any
    scratches on defendant’s face, but the following day, which was the day before
    Thanksgiving, they noticed scratches on his face, which defendant claimed were
    caused by a fight in a bar.
    To contest the prosecution’s evidence regarding Swanke’s time of death,
    the defense presented the testimony of Robert Martin, a security guard for the U.S.
    Elevator Company plant, which was located at the bottom of the hill near where
    Swanke’s body was discovered. On November 22, 1984, three nights after
    Swanke’s disappearance, Martin was working his midnight shift at the company.
    As he made his rounds, he heard dogs in the neighborhood barking and howling
    louder than usual. He also noticed the lights of an automobile at the top of the hill.
    B. Penalty Phase
    1. Prosecution Case
    The prosecution presented the record of defendant’s August 16, 1973
    conviction for the crime of forcible rape, in violation of section 261, including the
    finding that defendant was armed with a knife in the commission of the offense.
    This prior conviction was offered under aggravating factors (b) (prior violent
    criminal conduct) and (c) (prior felony conviction) of section 190.3.
    49
    2. Defense Case
    a) Defendant’s Family and Friends
    Defendant was born in the Philippines, where his father, Clarence Lucas,
    was stationed in the Navy at the time. Defendant had problems with bedwetting
    and suffered from asthma from an early age. Defendant’s father was described as
    a cold man who used to pick on defendant and his siblings when they were young.
    Defendant’s father had a temper, which he exhibited in front of defendant and the
    other children, at times putting holes in the walls out of anger. Defendant’s father
    would hit them not only with his fists, but also sometimes with a belt or telephone
    cord. One time, defendant’s father forced his sister Cathy to re-eat the salad she
    had just vomited onto her plate. The father was especially hard on defendant, who
    often received the worst treatment. The abuse continued until defendant’s parents
    separated when he was about 15 years old. Despite the prior abuse, defendant
    asked his mother to give his father another chance. The mother agreed but later
    divorced him.
    Defendant’s younger brother, Don, thought of defendant as a good friend
    and a father figure. When Don was unemployed, there were a number of times
    when defendant bought groceries for his family. Defendant once took Don and his
    family into his home. Defendant often advised Don about preparing for his future.
    Don explained that defendant had the most “civil head” of anyone he knew. Don
    recounted an incident in which his father was cleaning the garage with gasoline
    and the hot water heater ignited the gas. Defendant pulled Don out of the garage
    as it was engulfed in flames. Don trusted defendant with his children and asked
    that defendant be sentenced to life imprisonment.
    Cathy Lucas McEvoy, defendant’s sister, was one year older than him.
    Cathy testified that she talked to defendant about everything and that he took care
    of her when she was younger. When neighborhood bullies picked on Cathy, he
    50
    defended her. When defendant was arrested in 1984, Cathy visited him in jail,
    wrote to him, and talked to him by phone every day. Cathy asked the jury to spare
    her brother and testified that his execution would hurt her children and family.
    Cathy’s ex-husband, Jim Graves, testified that when he and Cathy got into
    arguments, defendant helped Graves “sort out” his feelings. Defendant was a
    good friend to Graves and maintained a good relationship with him and his
    children even after Graves remarried.
    Cathy’s current spouse, Mark McEvoy, first met defendant in about 1981.
    Sometimes defendant helped McEvoy with projects, such as working on
    McEvoy’s truck. They also went to baseball games together. McEvoy considered
    defendant someone with initiative for business. McEvoy felt defendant was a
    human being worth saving, that his death would only compound tragedy upon
    tragedy, and that defendant’s family would be devastated if he were sentenced to
    death.
    Defendant’s niece, Trisha McEvoy, and nephew, Timmy Graves, testified
    on defendant’s behalf. Trisha told the jury she got along well with defendant, she
    listened to his advice, and he was a good influence on her. Defendant paid for her
    modeling school and was always available to talk to her about her problems.
    Trisha testified that defendant bought food for her and her little brother when her
    parents were going through a divorce. Trisha wished her uncle to live. Timmy
    testified that defendant is a good uncle who did nice things for him, like taking
    him fishing, going on car rides, and playing games and watching television with
    him. Timmy thought the appropriate punishment for his uncle would be life in
    prison.
    Many of defendant’s friends and family testified that defendant was kind,
    caring, helpful and generous, and good with children. All of defendant’s friends
    and family asked that defendant be given a life imprisonment sentence.
    51
    b) 1973 Rape Case
    Attorney George Anthony Gilham represented defendant in the 1973 rape
    case. Gilham believed that defendant was not guilty of the rape charge. Gilham
    also believed that defendant should be sentenced to life imprisonment. In
    Gilham’s opinion, defendant is a hard-working individual who could be a benefit
    to society if he were to receive such a sentence.
    c) Expert Testimony
    Clinical and forensic psychologist Alvin Marks diagnosed appellant as
    having “personality disorder.” Dr. Marks indicated defendant’s early life
    problems included a severely dysfunctional family. Dr. Marks testified that
    defendant picked up his father’s hatred of women. But Dr. Marks believed
    defendant also loved women and was in pursuit of the perfect woman. Defendant
    had a great fear of men and distrust of authority because of his father, but
    defendant was able to get along with men in an institutional setting. Defendant
    had difficulty expressing his feelings, but expressed sadness over the death of his
    wife, felt bad about the fact that he had difficulty in seeing his family, and
    expressed remorse for the family of the victims (without admitting to his guilt).
    Craig Haney, professor of psychology at the University of California at
    Santa Cruz testified regarding his studies of the prison environment concerning the
    sentence of life imprisonment without possibility of parole (LWOP). Haney
    described security conditions in California prisons that held LWOP prisoners as
    being the highest level of security in the state. He explained that living conditions
    for LWOP prisoners were heavily monitored, but that prison society was such that
    inmates could find meaningful ways of making contributions to the institution and
    people around them. Haney described prison rules and punishment, as well as
    factors important to an inmate’s prison adjustment.
    52
    Louis Nelson, a retired San Quentin Prison warden, testified that wardens
    prefer life prisoners because they settle down, help mentor new and younger
    inmates, and perform valuable work assignments. Nelson described the security at
    San Quentin, the cells occupied by inmates, the “lifer’s club,” and the inmate
    council — a group that facilitates communication between the inmates and the
    administration. He maintained that the best indicator of how an inmate will
    perform is past prison conduct.
    3. Prosecution Rebuttal
    a) Spousal Abuse
    Laura Stewart lived next door to defendant and his wife for more than a
    year. In Stewart’s opinion, defendant and his wife, Shannon, had a violent,
    tumultuous relationship. She observed them constantly fighting outside in the
    yard and saw defendant hit Shannon numerous times.
    Stewart recalled one instance in which she was awakened by yelling and
    screeching tires. Stewart heard defendant say, “Go get the chain.” She heard
    defendant and Shannon arguing, with defendant using much profanity.
    Eventually, Stewart saw Shannon drive defendant’s truck into a pole, and saw
    defendant open the truck door and drag Shannon out by her hair.
    b) Conduct in Jail
    When in custody in this matter, deputy sheriffs repeatedly found “pruno,” a
    homemade alcoholic beverage, in defendant’s jail cell. Deputy Sheriff Barletta
    testified defendant’s possession of pruno was a major jail rule violation.
    On February 23, 1989, Deputy Sheriff Mark Profeta searched defendant’s
    jail cell. When Profeta entered, he found a broomstick with a tapered end leaning
    against the bars and the wall. Inmates were not allowed to have sharpened
    broomsticks because they posed a security risk for other inmates and the staff.
    53
    4. Defense Surrebuttal
    In January 1989, Sonny Lee was housed with defendant in tank 5F in the
    central jail. Lee testified that the item Deputy Profeta referred to as a broomstick
    was actually an attachment for a scrub brush. Lee also testified that the stick was
    used to reach the television from the cell in order to change channels or adjust the
    volume because that was the only way the television could be adjusted.
    II. PRETRIAL ISSUES
    A. Consolidation and Cross-admissibility Issues
    Defendant makes numerous arguments related to the consolidation of his
    cases. He claims that each incident was not admissible to prove identity for each
    of the other killings because they were not so unusual and distinctive, nor so
    similar, so as to reflect the “signature” of a single perpetrator. He argues that
    because the crimes were not cross-admissible, a joint trial of all the charges
    prejudiced his guilt and penalty phase verdicts.
    1. Background and Procedural History
    Following his arrest in December 1984, defendant was arraigned for the
    crimes against Robertson, Strang, Fisher, and Swanke in case No. CR 73093.
    Investigators, however, believed defendant was also linked to the Jacobs and
    Garcia murders, and, in March 1985, defendant was arraigned for those murders in
    case No. CR 75195. In December 1986, the prosecution filed a motion to
    consolidate the cases. In the course of pretrial proceedings, the trial court heard
    evidence concerning the nature of the homicides, the victims, and the
    characteristics of the inflicted wounds. The court also considered evidence of all
    known homicide cases in San Diego County from the prior 20 years that involved
    cutting injuries to the victim’s throat. For the purpose of its determination of
    whether evidence would be cross-admissible for each incident, the court ruled that
    54
    the evidence would be limited to that put forth by the prosecution and denied the
    defense request to present its own witnesses to oppose the motion to consolidate.
    In June 1988, the trial court granted the motion to consolidate and made
    detailed findings in support of consolidation. The court noted that all of the
    victims were vulnerable, that the women were all in their 20s or early 30s, pretty,
    and had brown hair, that all but one incident involved the victim being attacked
    while secluded in a house, that there was no apparent motive for the murders, no
    evidence of sex assault or items stolen, and that each victim had an ear-to-ear
    throat slashing wound that extended to the backbone — with this injury being the
    only major wound in all of the cases, except for Suzanne Jacobs. The court also
    noted that the coroner’s office had seen relatively few throat-slashing homicides
    and that records for the prior 20 years identified only about three dozen murder
    cases involving cuts to the throat. The court further explained that it had reviewed
    the coroner’s reports for these other throat-wound homicides and they were all
    distinguishable largely because of other wounds to the bodies that did not involve
    the neck. The court did note that two other prior cases were similar to the charged
    cases in that the neck was the only part wounded, but it noted that both cases
    involved slashes to only the right side of the victim’s neck, and not ear to ear, and
    that both involved neck injuries that were lower on the neck than in the charged
    cases. Finally, the court rejected the defense claim that the probative value of
    cross-admissibility was outweighed by any prejudicial effects.
    2. Cross-admissibility to Prove Identity
    According to section 954: “An accusatory pleading may charge . . . two or
    more different offenses of the same class of crimes or offenses, under separate
    counts . . . provided, that the court in which a case is triable, in the interests of
    55
    justice and for good cause shown, may in its discretion order that the different
    offenses or counts set forth in the accusatory pleading be tried separately . . . .”
    “Because consolidation ordinarily promotes efficiency, the law prefers it.”
    (People v. Ochoa (1998) 
    19 Cal.4th 353
    , 409; accord, People v. Soper (2009) 
    45 Cal.4th 759
    , 772.) Accordingly, if the charged offenses are of the same class, such
    as the murders charged here, joinder is proper under section 954. (People v. Kraft
    (2000) 
    23 Cal.4th 978
    , 1030.) Under such circumstances, it is defendant’s burden
    to show error in allowing a joint trial of the charged offenses and relief will obtain
    only on a clear showing of prejudice to establish the trial court’s abuse of
    discretion. (Alcala v. Superior Court (2008) 
    43 Cal.4th 1205
    , 1220.)
    An abuse of discretion can occur “ ‘ “where: (1) evidence on the crimes to
    be jointly tried would not be cross-admissible in separate trials; (2) certain of the
    charges are unusually likely to inflame the jury against the defendant; (3) a ‘weak’
    case has been joined with a ‘strong’ case, or with another ‘weak’ case, so that the
    ‘spillover’ effect of aggregate evidence on several charges might well alter the
    outcome of some or all of the charges; and (4) any one of the charges carries the
    death penalty or joinder of them turns the matter into a capital case.” ’ ” (People
    v. Kraft, 
    supra,
     23 Cal.4th at p. 1030, quoting People v. Bradford (1997) 
    15 Cal.4th 1229
    , 1315.)
    First, we examine whether defendant was prejudiced because of joinder by
    determining if each of the joined charges would have been admissible in separate
    trials on the others.25 “If so, any inference of prejudice is dispelled.” (People v.
    Kraft, 
    supra,
     23 Cal.4th at p. 1030.)
    25     Section 954.1 states that “where two or more accusatory pleadings charging
    offenses of the same class of crimes or offenses have been consolidated, evidence
    concerning one offense or offenses need not be admissible as to the other offense
    (Footnote continued on next page.)
    56
    Whether the other crimes would have been admissible in separate trials on
    the others is governed by Evidence Code section 1101, subdivision (b), which
    permits admission of other uncharged acts when offered as evidence of a
    defendant’s motive, common scheme or plan, preparation, intent, knowledge,
    identity, or absence of mistake or accident in the charged crimes. In this case, the
    prosecutor argued, and the trial court found, that evidence of each incident would
    have been cross-admissible in a separate trial of the charge relating to the other
    incidents because the incidents disclosed a distinctive modus operandi tending to
    establish the killer’s identity. We have held that to prove identity through other
    uncharged acts, the similarities between the charged and uncharged offenses must
    be so unusual and distinctive as to be akin to a signature. (People v. Ewoldt
    (1994) 
    7 Cal.4th 380
    , 403.)
    In this matter, there were five incidents all involving slim, attractive
    Caucasian women with brown hair in their 20s or 30s. To the extent that two of
    these incidents also involved the killing of young children, it appears that the
    children were not the primary targets, but were instead killed to eliminate potential
    witnesses to the adult killings. None of the incidents disclosed any motive for the
    killings, with no conclusive evidence of sexual assault, larceny, or obvious motive
    for retribution.
    (Footnote continued from previous page.)
    or offenses before the jointly charged offenses may be tried together before the
    same trier of fact.” But because defendant was tried prior to the effective date of
    this statute, as adopted by the California voters through Proposition 115 in June
    1990 (see Cal. Const., art. I, § 30, subd. (a)), we apply the law predating its
    enactment. (People v. Ramirez (2006) 
    39 Cal.4th 398
    , 437, fn. 6.)
    57
    But the most important similarity in all the incidents was the characteristics
    of the inflicted throat wounds. All of the victims in this case had severe slashing
    throat wounds that spanned nearly ear to ear and cut deeply through the tissues of
    the throat either at or above the thyroid cartilage. The wounds themselves were
    distinctive based on how they invaded each victim’s throat in terms of depth,
    height, and length. The extent and nature of all of these injuries indicated that
    they were not the result of stab wounds, but rather a slashing and sawing type of
    action that required multiple sawing motions to accomplish the extent of the
    injuries. The throat wounds also were the primary cause of death for each victim.
    The uniqueness of the throat wounds in the present case becomes starkly
    evident when compared to the more than three dozen San Diego County homicide
    cases involving throat wounds in the prior two decades before defendant’s trial.
    Virtually all of the other cases involved stabbing, not slashing, wounds to the neck
    and involved significant slashing or stabbing wounds to other parts of the victim’s
    body. As the trial court pointed out, only two of the other killings were similar to
    those in the present matter in that each of those female victims had a slashing
    throat wound as the sole major wound, but in those cases the wounds did not
    extend across the entire neck and involved only the right side. Moreover, one of
    those two victims had been strangled to death before her neck was wounded and
    items had been stolen from her home. The other victim’s throat wound extended
    well below the thyroid cartilage and into the lower neck vertebrae.
    Thus, in addition to the targeted victims’ gender, race, age, and appearance
    and the lack of apparent motive for the killings, all of the victims’ wounds shared
    characteristics that were unlike anything the San Diego coroner had observed in
    the more than 20 years preceding defendant’s trial. Several doctors from the
    coroner’s office testified concerning the general rarity of throat-slashing
    58
    homicides. And the neck wounds here were unique in that they were virtually the
    only offensive wounds present on each victim.26
    Accordingly, we conclude that the trial court did not abuse its discretion
    when it ruled that each incident displayed a pattern so unusual and distinctive as to
    support an inference that the same person committed all of the killings and that
    such evidence, therefore, was relevant on the issue of identity.27 In separate trials,
    evidence of the other four incidents would have been admissible in each trial. Any
    inference of prejudice is dispelled. (People v. Bradford, 
    supra,
     15 Cal.4th at
    p. 1316.)
    Moreover, none of the other factors relevant to assessing prejudice from
    joinder support defendant’s claim that the trial court abused its discretion in
    allowing consolidation.
    As to whether some of the charges were likely to unusually inflame the jury
    against defendant, all of the charges were certainly aggravated by the brutal nature
    of the inflicted neck wounds, especially given that two of the incidents involved
    26     Although Suzanne Jacobs had three stab wounds that were not associated
    with her neck, of the five charged incidents, her crime scene was the only scene
    that showed evidence of a prolonged struggle between the victim and her killer.
    Moreover, nearly all of the other more than three dozen San Diego County throat-
    wound murder cases involved victims who suffered numerous stabbing and/or
    slashing wounds on other parts of the body as well as multiple sites of blunt force
    trauma. In this respect, the injuries to Suzanne Jacobs were much more similar to
    the other four charged incidents than to the other throat-wound murders that had
    occurred in the county prior to defendant’s trial.
    27     Defendant also claims the trial court abused its discretion by considering
    the offenses as a whole rather than determining cross-admissibility on a case-by-
    case basis. But nothing in the record suggests that the court blurred together the
    facts of each case. Instead, the court’s ruling clearly focused on not only the
    factual circumstances of the five charged incidents but also on dozens of other
    homicides involving throat injuries.
    59
    three-year-old children. But considered as a whole, the circumstances of each of
    the five incidents were “ ‘similar in nature and equally gruesome.’ ” (People v.
    Carter (2005) 
    36 Cal.4th 1114
    , 1155.)
    Regarding whether a weak case had been joined with a strong case or with
    another weak case so that the total evidence unfairly may have altered the outcome
    of some or all of the charges, the jury’s verdicts contradict such a contention. The
    fact that the jury acquitted defendant of Garcia’s murder and could not reach a
    verdict as to the murders of Strang and Fisher strongly suggests that the jury was
    capable of weighing the evidence and differentiating among defendant’s various
    charges. Concerning the Jacobs murders, there was compelling independent
    evidence connecting defendant to those murders. Defendant had no alibi for that
    day, a bloodied note with his handwriting was found at the scene, a vehicle
    matching his mother’s car was in the Jacobses’ driveway that morning, and bloody
    footprints at the scene were consistent with the sole pattern of the boots defendant
    wore at work. Defendant has not shown that there was a “ ‘spillover’ ” effect
    where evidentiary gaps in an allegedly weak case were filled by joinder with a
    stronger case.28 (People v. Ruiz (1988) 
    44 Cal.3d 589
    , 606.)
    Finally, we consider whether any one of the charged crimes carries the
    death penalty or whether joinder of the charged crimes turns the matter into a
    capital case. (People v. Kraft, 
    supra,
     23 Cal.4th at p. 1030.) Although joinder did
    not convert the Jacobs murders or the Strang and Fisher murders into capital cases
    28     Defendant also argues that the trial court assumed defendant was guilty of
    each murder in deciding cross-admissibility, thereby improperly “bootstrapping”
    the cross-admissibility rulings by interdependently relying on the validity of the
    other cases without that validity having been independently established. But we
    note that the court specifically concluded that “there are independent factors about
    each of the crimes which link [defendant] to each crime.”
    60
    because both alone satisfied the multiple-murder special-circumstance statute,
    joinder did have the effect of converting the Garcia and Swanke murders into
    capital cases. This raises a concern that joinder could produce a conviction that
    would not otherwise be obtainable on the evidence at separate trials because
    “joinder should never be a vehicle for bolstering either one or two weak cases
    against one defendant, particularly where conviction in both will give rise to a
    possible death sentence.” (Williams v. Superior Court (1984) 
    36 Cal.3d 441
    , 454.)
    The jury, however, acquitted defendant of the Garcia murder and hung on the
    Strang and Fisher murders, and the evidence of defendant’s role in the Swanke
    murder was particularly strong. Therefore, even if the Jacobs murders and
    Swanke murder had been tried separately, defendant still would have been subject
    to the multiple-murder special-circumstance statute.
    We conclude that defendant has failed in carrying his burden of making a
    clear showing of prejudice to establish that the trial court abused its discretion in
    granting the prosecution’s motion to consolidate the five charged incidents.
    3. Defense Evidence on Cross-admissibility and Consolidation
    Defendant claims the trial court violated his constitutional rights to due
    process, to present a defense, and against cruel and unusual punishment by
    rejecting his offer to present 136 defense witnesses at the hearing on the
    prosecution’s motion to consolidate defendant’s cases in order to contest the issue
    of cross-admissibility and consolidation of the crimes for trial. Specifically,
    defendant argues that he should have been allowed to present evidence
    challenging the accuracy and reliability of the state’s forensic evidence, evidence
    of Massingale’s confession, evidence of foreign pubic hair found on Swanke, his
    alibis for the Robertson and Garcia cases, evidence of third party guilt in the
    Strang and Fisher killings, and expert evidence about the ability of jurors to follow
    61
    limiting instructions concerning evidence of other crimes. Defendant claims that,
    without consideration of this defense evidence, the court abused its discretion in
    ruling on cross-admissibility and joinder. The court allowed the defense to fully
    cross-examine any prosecution witnesses in rebutting the state’s evidence or
    raising the question of a defense, but it noted that it would be burdensome for the
    court to hear all of the same evidence the jury would hear during trial for purposes
    of deciding the motion to consolidate. We conclude there was no error.
    Preliminarily, we note that defendant cites no authority for the proposition
    that the trial court must essentially preview the defense’s anticipated trial evidence
    in order to adequately rule on matters of cross-admissibility and joinder or that the
    presentation of such evidence is constitutionally required. Moreover, we conclude
    defendant’s claim fails for several reasons.
    First, under Evidence Code section 1101, subdivision (b), our courts have
    recognized that the existence of defendant’s other criminal conduct “and
    defendant’s connection to it are preliminary factual issues which must be decided
    before the prior misconduct can be deemed admissible” and that the proponent of
    such evidence must establish, by a preponderance, the existence of the prior crime
    and the defendant’s connection to it. (People v. Garelick (2008) 
    161 Cal.App.4th 1107
    , 1115, citing People v. Simon (1986) 
    184 Cal.App.3d 125
    , 129-130; Evid.
    Code, § 403, subd. (a) [“The proponent of the proffered evidence has the burden
    of producing evidence as to the existence of the preliminary fact”].) Accordingly,
    in arguing in favor of consolidation, it was the prosecution’s burden to make a
    showing of cross-admissibility, including establishing preliminary facts linking
    defendant to the killings.
    The prosecution met its burden. As discussed above, the prosecution’s
    evidence concerning the throat wounds supported the preliminary factual
    determination that the wounds were sufficiently similar such that the same person
    62
    likely inflicted them. This determination alone satisfied the prosecution’s burden.
    Defendant’s proffered evidence did not challenge this preliminary factual
    determination, but instead challenged some of the other forensic evidence or
    offered evidence of alibi or third party culpability.
    Second, concerning the admissibility of other crimes evidence under
    Evidence Code section 1101, subdivision (b), “[o]rdinarily, determining the
    relevance of proffered ‘other act’ evidence presents solely a question of law for
    the court because the defendant does not dispute the fact of the prior act but
    merely argues its legal inadmissibility.” (People v. Simon, supra, 184 Cal.App.3d
    at p. 129.) But if a defendant claims he did not commit the other acts at issue, this
    ultimately presents a question of fact “which must be resolved by the jury before it
    can draw any inference regarding defendant’s commission of the charged
    offense.” (Id. at p. 130.) Here, the trial court properly determined the cross-
    admissibility of the murders as a question of law, based on the evidence regarding
    the similarity of the killings. As to defendant’s arguments that he did not commit
    the other murders, the court properly left those factual questions for the jury to
    decide.
    Third, although some of defendant’s proffered evidence may have been
    relevant to a pretrial determination of whether the prosecution sought to join
    relatively weak cases with strong ones, any presumed error at this pretrial stage
    could not have harmed defendant. Defendant had the opportunity to renew his
    motion to sever after the presentation of evidence at trial, including after the
    defense phase. (People v. Ervin (2000) 
    22 Cal.4th 48
    , 68 [“If further
    developments occur during trial that a defendant believes justify severance, he
    must renew his motion to sever”].) Defendant renewed his motion to sever after
    the prosecution presented its case-in-chief to the jury, and the trial court denied the
    motion. He did not renew this motion after the defense presented its case. Thus,
    63
    to the extent defendant argues that the court’s pretrial consideration of defense
    evidence was relevant to show that a weak case was being joined with a strong one
    to his prejudice, that claim is forfeited because defendant passed on the
    opportunity to renew such a claim after presenting his evidence at trial.
    We also reject defendant’s further claim that the trial court deprived him of
    a full and fair hearing on the issue of consolidation because the court excluded
    expert evidence about the ability of jurors to follow limiting instructions
    concerning evidence of other crimes. The court heard the defense’s extensive
    offer of proof on this subject by considering the testimony of defense expert
    Dr. Stephen Penrod, an associate professor of psychology at the University of
    Wisconsin. Although Dr. Penrod had used mock trials to study the effect of
    joinder of unrelated charges on jury decisionmaking, the court properly found his
    studies to be irrelevant. None of Dr. Penrod’s studies involved cases in which the
    crimes were cross-admissible and none of them involved full trials with 12-
    member juries. In particular, the very nature of cross-admissibility dictates that
    consolidation is proper because the other crimes are relevant to ascertain guilt in
    the charged crime. The studies were, therefore, irrelevant regarding whether
    joinder was proper in the present case.
    In any event, cross-admissibility ordinarily dispels any inference of
    prejudice. (People v. Arias (1996) 
    13 Cal.4th 92
    , 126.) Moreover, our review of
    the record of trial, including the defense evidence, reveals no “ ‘ “gross
    unfairness” ’ ” that deprived defendant of a fair trial. (People v. Ervin, 
    supra,
     22
    Cal.4th at p. 69.)
    4. Denial of a Hearing Regarding a Claim of Vindictive Prosecution
    Defendant claims the trial court failed to hold an evidentiary hearing to
    explore whether the prosecutor had vindictively moved to consolidate his two
    64
    cases after defendant had successfully obtained an appellate order for a speedy
    trial in the Jacobs and Garcia matters. He argues that the denial of such a hearing
    violated his due process rights and his right to present evidence under the state and
    federal Constitutions. But the trial court correctly concluded that both sides had
    engaged in “very technical use of the law” to assert their respective preferences for
    the order in which defendant’s cases would be tried, and that the prosecution’s
    motions were not “legally improper” and did not impair any of defendant’s rights.
    “Where the defendant shows that the prosecution has increased the charges
    in apparent response to the defendant’s exercise of a procedural right, the
    defendant has made an initial showing of an appearance of vindictiveness.”
    (Twiggs v. Superior Court (1983) 
    34 Cal.3d 360
    , 371, italics added.) Here, the
    prosecution sought to consolidate two preexisting cases, and the proposed
    consolidation did not expose defendant to additional charges or an increased
    sentence. Consequently, defendant failed to make an initial showing of
    vindictiveness. The trial court correctly denied defendant’s request for a hearing
    and his motion to dismiss based on prosecutorial vindictiveness.
    65
    B. Pretrial Evidentiary Rulings29
    1. Failure to Preserve Fingerprint Evidence on the Love Insurance
    Note
    Defendant contends the destruction of a partial fingerprint on the Love
    Insurance note rendered the note inadmissible by violating his due process rights
    under California v. Trombetta (1984) 
    467 U.S. 479
     (Trombetta) and Arizona v.
    Youngblood (1988) 
    488 U.S. 51
     (Youngblood). We disagree.
    The constitutional due process rights of a defendant may be implicated
    when he or she is denied access to favorable evidence in the prosecution’s
    possession. (Brady v. Maryland (1963) 
    373 U.S. 83
    .) Trombetta outlines how the
    state’s failure to preserve evidence may violate those rights. In Trombetta, the
    high court limited the state’s affirmative duty to preserve evidence to that which
    “might be expected to play a significant role in the suspect’s defense.”
    (Trombetta, 
    supra,
     467 U.S. at p. 488.) This standard of “constitutional
    materiality” imposes two requirements that a defendant must meet in order to
    show a due process violation. As an initial matter, the evidence must “possess an
    exculpatory value that was apparent before [it] was destroyed.” (Id. at p. 489.)
    29      The following claims were the subject of lengthy, heavily litigated pretrial
    hearings. Many of the pretrial hearings involved the admissibility of specific
    types of evidence. Because the court’s rulings and defendant’s objections were
    sufficiently clear and express, we conclude, unless otherwise noted, that
    defendant’s in limine motions were sufficient to preserve his objections on appeal.
    (People v. Morris (1991) 
    53 Cal.3d 152
    , 190 [a contemporaneous objection at trial
    is not required if an in limine motion sufficiently preserved an objection for appeal
    when “(1) a specific legal ground for exclusion is advanced and subsequently
    raised on appeal; (2) the motion is directed to a particular, identifiable body of
    evidence; and (3) the motion is made at a time before or during trial when the trial
    judge can determine the evidentiary question in its appropriate context”].)
    66
    Additionally, it must “be of such a nature that the defendant would be unable to
    obtain comparable evidence by other reasonably available means.” (Ibid.)
    Contrary to defendant’s claim here, the fingerprint on the Love Insurance
    note does not meet the “constitutional materiality” standard outlined in Trombetta.
    Although the fingerprint in this case was partial, it could have been used to
    exclude potential suspects. But there is no indication that the print would have
    exculpated defendant, who was not even a suspect when law enforcement
    inadvertently failed to preserve the print. Indeed, our conclusion here is consistent
    with previous cases, in which we have rejected Trombetta claims based on the
    destruction of fingerprints when the state had no reason to know that the prints
    might exculpate a particular defendant. (People v. Roybal (1998) 
    19 Cal.4th 481
    ,
    509; People v. Medina (1990) 
    51 Cal.3d 870
    , 893.)
    Destroyed evidence with only potential, rather than apparent, exculpatory
    value is without remedy under Trombetta, but Youngblood provides a limited
    remedy when the state has acted in bad faith in failing to preserve the evidence. In
    Youngblood, police obtained semen samples from a rape kit and several items of
    clothing, but could not definitively establish the identity of the assailant through
    their initial tests. (Youngblood, supra, 488 U.S. at pp. 52-54.) The police
    subsequently failed to take measures necessary to preserve those samples, such as
    refrigerating the clothing. (Id. at p. 54.) Although properly preserved samples
    could have exculpated the defendant in that case, that evidence was only
    “potentially useful” (id. at p. 58) to the defense and not “ ‘potentially
    exculpatory’ ” at the time it was allowed to deteriorate. (Id. at pp. 57-58.) The
    court held that “unless a criminal defendant can show bad faith on the part of the
    police, failure to preserve potentially useful evidence does not constitute a denial
    of due process of law.” (Id. at p. 58.) Although Youngblood was decided after the
    commencement of defendant’s initial trial here, its rule applies retroactively.
    67
    (People v. Huston (1989) 
    210 Cal.App.3d 192
    , 212-213.) As we have explained,
    the partial fingerprint was only potentially useful to defendant’s case and not
    apparently exculpatory. But defendant has neither alleged nor shown any bad
    faith in law enforcement’s handling of the partial fingerprint on the Love
    Insurance note. Consequently, his claim also fails under Youngblood.
    Defendant alternatively argues that even if the note was admissible, the jury
    should have been given one of several instructions requested by the defense. In
    effect, the instructions would have informed the jurors that they could find the
    note to be insufficiently authenticated if they found its potentially exculpatory
    value was lost and that they were allowed to assume that the lost evidence would
    have exonerated defendant. Although a jury instruction may be a viable response
    to a due process violation, the trial court is under no obligation to so instruct the
    jury when there is no violation. (People v. Cooper (1991) 
    53 Cal.3d 771
    , 811.)
    We have found no error here and the trial court’s refusal to give defendant’s
    proffered instructions was not an abuse of discretion.
    Last, we reject defendant’s claim that the requirements of Trombetta and
    Youngblood should be relaxed in light of the asserted heightened capital-case
    reliability requirements of the Eighth and Fourteenth Amendments to the federal
    Constitution. (People v. Alexander (2010) 
    49 Cal.4th 846
    , 877-879 [discussing
    evidence challenged by a capital defendant under Trombetta without performing a
    heightened reliability analysis]; People v. Holt (1997) 
    15 Cal.4th 619
    , 664
    [denying capital defendant’s request that materials otherwise admissible under
    Trombetta and Youngblood be excluded and noting that “the fact that a particular
    68
    procedure might enhance reliability does not make it one that is constitutionally
    mandated”].)30
    2. Challenges to Handwriting Comparison Evidence
    a) Failure to Hold a Kelly Hearing
    Defendant argues the trial court erred and violated his state and federal
    rights to due process, right to present a defense, and his right of confrontation in
    denying his request for a Kelly hearing concerning the admissibility of the
    prosecution’s comparative handwriting analysis. This claim relies on the premise
    that handwriting comparison is a new or novel scientific method or process that
    requires an analysis under the test established in People v. Kelly (1976) 
    17 Cal.3d 24
     (Kelly). Defendant states that handwriting comparison should be treated as a
    scientific method because an analyst’s conclusions carry an aura of certainty that a
    jury is unable to critically question. Defendant also claims that recent legal and
    30      We also reject defendant’s similar claims regarding the failure to fully
    preserve hair evidence found in Suzanne Jacobs’s hand. Defendant claims that the
    state impermissibly failed to refrigerate the hairs after collection to preserve their
    roots for later serological testing. But at the time of their collection at the crime
    scene, electrophoretic analysis of serological evidence was a nascent field and
    refrigeration of hair samples was not standard practice. The exculpatory value of
    the hairs was not immediately apparent at the time of their collection because
    defendant was not yet a suspect, and defendant cannot otherwise show bad faith in
    the state’s failure to preserve the hair roots. Moreover, it is questionable whether
    the evidence has been “destroyed” for purposes of Trombetta and Youngblood.
    Defendant fails to recognize that modern forensic techniques are now available to
    determine whether the hairs have exculpatory value despite the absence of
    preserved roots. (See Wagner v. State (Md.Ct.Spec. App. 2005) 
    864 A.2d 1037
    ,
    1045, fn. 5 [“mtDNA analysis can be used on material without a nucleus, such as a
    bone sample or a piece of hair without a root segment”]; People v. Stevey (2012)
    
    209 Cal.App.4th 1400
    , 1412 [“Y-STR testing and its female counterpart, mtDNA
    (mitochondrial DNA) testing, have been generally accepted by the scientific
    community”].)
    69
    scientific challenges to the accuracy of the method underlying this analysis dictate
    that we treat it as we would a novel or unfamiliar theory. Finally, he suggests that
    we consider recent studies that express doubts about the reliability of handwriting
    comparison. We disagree with defendant’s contention that the handwriting
    comparison in this case is sufficiently “scientific” to qualify for a Kelly hearing.
    The Kelly standard provides a framework within which courts can analyze
    the reliability of expert testimony based on new or novel scientific methods or
    techniques.31 As we have acknowledged, there is no clear definition of science
    under this test. (People v. Stoll (1989) 
    49 Cal.3d 1136
    , 1155.) Accordingly, the
    application of that term is guided by resort to the “narrow ‘common sense’
    purpose” behind the rule: “to protect the jury from techniques which . . . convey a
    ‘ “misleading aura of certainty.” ’ ” (Id. at pp. 1155-1156, quoting Kelly, supra,
    17 Cal.3d at pp. 30-32.) The danger of a false aura of certainty is acute where the
    “technique or procedure appears in both name and description to provide some
    definitive truth which the expert need only accurately recognize and relay to the
    jury,” such that a lay jury might treat the procedure as “objective and infallible.”
    (Stoll, supra, at p. 1156.) The analysis is designed to address “scientific evidence
    or technology that is so foreign to everyday experience as to be unusually difficult
    for laypersons to evaluate.” (People v. Venegas (1998) 
    18 Cal.4th 47
    , 80.)
    31      In Kelly, supra, 
    17 Cal.3d 24
    , we adopted a three-pronged test to establish
    the reliability of scientific testing and its scientific basis to determine its
    admissibility in pretrial hearings. “The first prong requires proof that the
    technique is generally accepted as reliable in the relevant scientific community.
    [Citation.] The second prong requires proof that the witness testifying about the
    technique and its application is a properly qualified expert on the subject.
    [Citation.] The third prong requires proof that the person performing the test in
    the particular case used correct scientific procedures.” (People v. Bolden (2002)
    
    29 Cal.4th 515
    , 544-545, citing Kelly, supra, at p. 30.)
    70
    In contrast, when an expert’s methods are based on everyday processes of
    observation and analysis, we trust jurors to “rely on their own common sense and
    good judgment in evaluating the weight of the evidence presented to them.”
    (People v. Venegas, 
    supra,
     18 Cal.4th at p. 80; see People v. McDonald (1984) 
    37 Cal.3d 351
    , 372 (McDonald) [“[w]hen a witness gives his personal opinion on the
    stand — even if he qualifies as an expert — the jurors may temper their
    acceptance of his testimony with a healthy skepticism born of their knowledge that
    all human beings are fallible”].)
    For more than 100 years, we have recognized that expert handwriting
    comparisons have evidentiary value and that juries should “form their own
    conclusion in reference to such similarity or resemblance.” (People v. Storke
    (1900) 
    128 Cal. 486
    , 488.) In addition, the Legislature has affirmed the value of
    handwriting comparisons to authenticate a writing. (Evid. Code, §§ 1415, 1418.)
    The Evidence Code endorses the use of expert testimony in handwriting
    comparison and further allows jurors to make their own comparisons of
    handwriting. (Evid. Code, §§ 1417, 1418.)
    Although our courts, to date, have not directly ruled on the applicability of
    Kelly to expert handwriting comparison, they have frequently held that the Kelly
    framework does not apply to comparisons that focus on physical evidence “whose
    existence, appearance, nature, and meaning are obvious to the senses of a
    layperson.” (People v. Webb (1993) 
    6 Cal.4th 494
    , 524.) Under these
    circumstances, “the reliability of the process in producing that result is equally
    apparent and need not be debated under the standards of Kelly, supra, 
    17 Cal.3d 24
    .” (Ibid.)
    In People v. Webb, we held that the use of a laser to generate a more
    accurate photographic image of a latent fingerprint did not implicate the concerns
    addressed by Kelly. We explained that, because the technology merely
    71
    illuminated existing latent fingerprints, it was “unreasonable for defendant to
    suggest that the process might somehow have captured a fingerprint which did not
    exist, transformed some other image into a fingerprint, or changed the fingerprint
    of another person into one which matched defendant’s.” (People v. Webb, 
    supra,
    6 Cal.4th at p. 524.) Therefore, no hearing pursuant to Kelly was required.
    Similarly, in People v. Ayala (2000) 
    24 Cal.4th 243
    , we held that an
    expert’s method of comparing readily apparent features of physical evidence was
    not sufficiently “scientific” to require a hearing under Kelly. In that case, a
    radiologist taped bullets to the victim’s skin and then used an X-ray machine to
    compare those bullets to a bullet lodged inside him. (Id. at p. 281.) Quoting our
    decision in People v. Webb, 
    supra,
     
    6 Cal.4th 494
    , 524, we noted that this evidence
    could be meaningfully evaluated by the jury because it “ ‘isolate[d] physical
    evidence whose existence, appearance, nature and meaning are obvious to the
    senses of a layperson.’ ” (People v. Ayala, 
    supra, at p. 281
    .)
    In this case, the trial court held that the method of handwriting comparison
    offered by the prosecution was not sufficiently “scientific” to require a hearing
    under Kelly. We agree with the trial court’s determination. The handwriting
    comparison utilized here merely isolated, and carefully compared, readily
    observable aspects of physical evidence through simple magnification. The
    simple visual magnification employed here was less sophisticated than the laser
    fingerprint imaging in Webb and the X-ray bullet analysis in Ayala. Jurors could
    compare the handwriting on the Love Insurance note directly with the exemplars
    provided by defendant and were provided enlarged versions of both that were over
    three times their original size. Jurors are equipped to make those evaluations and
    draw their own conclusions based on their independent observations of the
    evidence. Indeed, as previously explained, a jury’s competence in performing this
    very analysis is recognized in Evidence Code section 1417. The magnification
    72
    employed here was not a highly technical test that would hold undue sway over
    jurors.
    Additionally, the expert in this case stated that it was his “opinion with
    reasonable certainty” that the author of defendant’s exemplars was also the author
    of the handwriting on the Love Insurance note, even though he admitted that he
    employed no standardized number of similarities or differences in the comparison
    before reaching that opinion. The expert further admitted that “there is a lot of
    handwriting similarity in the general population” and that “some people write
    alike” such that he may “not have the ability to distinguish between them.” This
    testimony, therefore, was not presented as a “definitive truth,” but rather as an
    informed opinion based on the witness’s transparently subjective techniques.
    Because this method of analysis is not sufficiently “scientific” under Kelly, we
    need not reach the other Kelly issues raised by defendant.
    b) Failure to Consider Pretrial Defense Evidence Regarding the
    Reliability of Handwriting Comparison Evidence
    Defendant argues that the trial court abused its discretion and violated his
    state and federal rights to due process, right to present a defense, right of
    confrontation, and compulsory process by refusing (1) to allow proffered defense
    expert testimony about handwriting comparison; (2) to take judicial notice of
    handwriting comparison proficiency studies; or (3) to allow an in-court test of the
    prosecution’s handwriting analysis expert, Dr. Harris. He also challenges these
    rulings as erroneous under Evidence Code sections 352 and 1418.32 All of this
    32      “The genuiness of writing, or the lack thereof, may be proved by a
    comparison made by an expert witness with writing (a) which the court finds was
    admitted or treated as genuine by the party against whom the evidence is offered
    or (b) otherwise proved to be genuine to the satisfaction of the court.” (Evid.
    Code, § 1418.)
    73
    evidence was proffered by defendant during pretrial proceedings in an attempt to
    cast doubt upon the accuracy — and, by implication, the probity and relevance —
    of the handwriting analysis that linked him to the handwriting on the Love
    Insurance note. We find no error in excluding this evidence from the pretrial
    proceedings.
    “In determining the admissibility of evidence, the trial court has broad
    discretion.” (People v. Williams (1997) 
    16 Cal.4th 153
    , 196.) In particular, a trial
    court’s decision on the admissibility of expert testimony is reviewed for an abuse
    of discretion. (People v. Smith (2003) 
    30 Cal.4th 581
    , 627.)
    It was not an abuse of discretion for the trial court to exclude the expert
    testimony and the proficiency studies offered by defendant. Dr. Saks was offered
    by the defense as an expert witness in social science, research, and research
    methodology. The trial court refused to hear Dr. Saks’s testimony because he was
    neither a practitioner nor a researcher of handwriting comparison. Instead,
    Dr. Saks was merely prepared to discuss several proficiency studies that he had
    read concerning handwriting comparison. The court expressed its concern that,
    because Dr. Saks was not a handwriting expert, the studies were inadmissible
    hearsay without a showing that they were the kind of studies that handwriting
    experts would reasonably rely upon. The court also observed that Dr. Saks had
    not personally performed the studies on which he was relying, and, consequently,
    he could not adequately account for the base of information underlying his
    opinion. Defendant misinterprets this ruling to state that only the direct
    practitioner of a technique can testify regarding the reliability of that technique.
    On the contrary, the trial court merely held that Dr. Saks’s lack of personal
    experience with both handwriting comparison and studies measuring the reliability
    of that analysis precluded him from having a sufficient basis for him to opine on
    the accuracy or reliability of that analysis generally. (See People v. Watson (2008)
    74
    
    43 Cal.4th 652
    , 692 [although the offered witness had educational background in
    criminal justice and was experienced in noncapital sentencing alternatives, the trial
    court properly concluded he was not qualified to testify about the psychological
    impact of defendant’s upbringing on his ability to adjust to life in prison].)
    Because the trial court reasonably determined that Dr. Saks’s testimony
    lacked the necessary foundation to be relevant regarding the reliability of the
    prosecution’s handwriting comparison, defendant’s related claim that the court
    abused its discretion under Evidence Code section 352 also fails. (People v.
    Minifie (1996) 
    13 Cal.4th 1055
    , 1070 [Evid. Code, § 352 rulings are reversible on
    appeal only on a clear showing of abuse of discretion].) A trial court may exclude
    an expert’s opinion testimony if that expert lacks an adequate basis in formulating
    it. (Sargon Enterprises, Inc. v. University of Southern California (2012) 
    55 Cal.4th 747
    , 770; People v. Ramos (1997) 
    15 Cal.4th 1133
    , 1174-1176.)
    Additionally, there is no due process right to present factually unfounded
    evidence. (People v. Mincey (1992) 
    2 Cal.4th 408
    , 442.) Consequently,
    defendant’s due process claim is equally unavailing. Finally, the trial court also
    reasonably exercised its discretion by refusing to take judicial notice because such
    studies are not matters subject to judicial notice under Evidence Code section 452.
    Defendant further argues that the trial court committed prejudicial error by
    refusing to allow the defense to “test” Dr. Harris’s handwriting identification
    abilities in court during the pretrial hearings concerning the admissibility of the
    state’s handwriting comparison evidence. When cross-examining Dr. Harris,
    defendant sought to introduce additional writing samples from another individual
    and have Dr. Harris analyze them for purposes of undermining the admissibility of
    the state’s handwriting comparison evidence. He avers that the court prevented
    him from fully confronting and cross-examining a key prosecution witness in
    violation of his state and federal constitutional rights. The court held that the
    75
    proposed experiment lacked foundation and was outside the scope of cross-
    examination.
    Proposing to cross-examine an expert through an in-court experiment
    implicates several considerations. Generally, the scope of cross-examination of
    expert witnesses can be broad and may include additional facts bearing on the
    grounds and reliability of the expert’s opinion. (Evid. Code, § 721; People v.
    Loker (2008) 
    44 Cal.4th 691
    , 739.) This contemplates significant latitude to test
    the accuracy and credibility of tests relied on by an expert. (People v. Smithey
    (1999) 
    20 Cal.4th 936
    , 967.) The trial court has wide discretion in determining the
    appropriate scope of cross-examination. (People v. Lancaster (2007) 
    41 Cal.4th 50
    , 102.) On the other hand, experimental evidence is admissible only when the
    party offering it proves (1) that it is relevant; (2) that it was conducted under
    conditions substantially similar to the original occurrence tested; (3) that
    presenting the evidence of the experiment will not consume undue time, confuse
    the issues, or mislead the trier of fact; and (4) that the expert testifying about the
    experiment is qualified to do so. (People v. Turner (1994) 
    8 Cal.4th 137
    , 198.)
    The trial court did not abuse its discretion by prohibiting an in-court “test”
    of Dr. Harris because, even if it was within the proper scope of cross-examination,
    the proposed test did not meet the minimum standards for admitting experimental
    evidence. Defendant failed to show that the proposed test was substantially
    similar to the prior handwriting comparison performed by Dr. Harris. Harris’s
    analysis of defendant’s handwriting involved numerous samples, including both
    those created in controlled conditions and his past writings. These samples were
    observed under an illuminated magnifier. Defendant’s proposed experiment
    would have asked Dr. Harris to identify whether one particular piece of writing
    “matched” the handwriting on the Love Insurance note, without the benefit of a
    large sample or any magnifying technology. These major differences undermined
    76
    the proposed test’s relevance in terms of challenging the accuracy, credibility, and
    admissibility of Harris’s original analysis. Also, the court reasonably determined
    that an in-court performance of the testing methods would consume undue time for
    purposes of the pretrial hearings. The court correctly noted that these in-court
    experiments lacked foundation and that defendant would need to independently
    conduct a test with Dr. Harris and then establish a foundation for its relevance at
    the pretrial hearings. Defendant did not take these further steps. On this record,
    we see no basis for reversing the court’s reasonable resolution of this issue.
    c) Admissibility of the Prosecution’s Expert Testimony on
    Handwriting
    Defendant asserts two additional non-Kelly challenges to the admission of
    testimony from the prosecution’s handwriting analysis expert, Dr. Harris.
    First, he contends that the trial court impermissibly shifted the burden to the
    defense on its Evidence Code section 352 objection to this testimony at the pretrial
    hearings to determine the admissibility of the state’s handwriting comparison
    evidence. Defendant quotes the trial judge’s statement that handwriting
    comparison is generally considered reliable and the defense would “bear the
    burden of showing the court otherwise.”33 Defendant argues that this alleged
    33      The trial judge’s exact statement was as follows: “Then you’re attacking
    the — probably the most well-received, most oft-received piece of expert
    testimony that’s ever, ever been in a courthouse. So it seems to me the burden is
    going to be on you to bring your expert in and convince the court otherwise, that
    handwriting experts are not the case. I would suggest that you bring your expert
    down because you’re going to bear the burden. The reality is — I’ve read the
    Points and Authorit[ies], and you’re just attacking something so often received and
    so generally accepted that I think the defense is ultimately going to bear the
    burden of showing the court otherwise . . . . [¶] I can look back at just case law in
    this area on the use of expert witnesses on handwriting. And without even having
    an expert testify as to its reliability, it seems to me that it is so well known and so
    (Footnote continued on next page.)
    77
    burden shifting prevented the court from properly exercising its discretion when
    considering whether — and to what extent — the handwriting comparison
    testimony was relevant and admissible. There was no erroneous burden shifting.
    Relevant evidence is that which has “any tendency in reason to prove or
    disprove any disputed fact that is of consequence to the determination of the
    action.” (Evid. Code, § 210.) Relevance is established when the evidence tends
    “ ‘ “ ‘logically, naturally, and by reasonable inference’ ” ’ ” to establish material
    facts, such as motive, intent, or identity. (People v. Heard (2003) 
    31 Cal.4th 946
    ,
    973.) When the relevance of proffered evidence depends on the existence of a
    disputed material fact or facts, the proponent of that evidence bears the burden of
    establishing all preliminary facts pertinent to the question of relevance. (Evid.
    Code, § 403, subd. (a)(1); People v. Kaurish (1990) 
    52 Cal.3d 648
    , 693.) The
    disputed evidence is inadmissible unless the court finds evidence sufficient to
    sustain a finding that those pertinent preliminary facts exist. (Evid. Code, § 403.)
    The trial court is accorded broad discretion in determining the relevance of
    evidence. (People v. Jones (2011) 
    51 Cal.4th 346
    , 373.)
    Here, the handwriting comparison testimony was relevant to prove that
    defendant wrote the note found at the crime scene. This evidence relied on the
    preliminary fact that, in the absence of new or novel scientific techniques,
    handwriting comparison in general is a reliable method of identifying or excluding
    the author of a writing. (See Evid. Code, §§ 1417, 1418.) The trial judge’s
    statement that defendant cites in support of his challenge merely recognized that
    (Footnote continued from previous page.)
    often received that it is one of those areas that simply passes to the defense
    immediately, without going through these machinations that we all know about.”
    78
    the case law on the issue of handwriting comparison, and its pervasive use in
    courts, was sufficient to sustain a finding that it was reliable. This was the judge’s
    manner of expressing that the court found the prosecution’s burden was met with
    respect to the handwriting comparison offered. This did not relieve the
    prosecution of the burden of proving Dr. Harris’s specific credentials and
    establishing that he practiced reliable methods, both of which would go to the
    question of whether his particular comparison was sufficiently reliable and
    relevant to the case. The burden, therefore, was not impermissibly shifted to the
    defense on this issue.
    Second, defendant claims that the trial court erred by allowing Dr. Harris to
    testify at the pretrial hearings that in his opinion, defendant was the author of the
    handwriting on the Love Insurance note. He claims this expert opinion improperly
    influenced the trial court’s decision to admit the Love Insurance note and the
    state’s handwriting comparison evidence. According to defendant, the probative
    value of this opinion was low because lay persons could compare the similarities
    between handwritings. He also argues that the probity of this opinion testimony
    was further undermined by the small sample of handwritten letters on the original
    note, the possibility that he may have been handcuffed when providing
    handwriting exemplars, the fact that the handwritten letters were not written in
    cursive, which is purportedly more distinctive, and the unavailability of the
    original document for comparison. Defendant alleges that these factors combine
    to make the handwriting evidence so unreliable that it was an abuse of discretion
    not to exclude it under sections 352 and 1418 of the Evidence Code and the
    federal and state constitutional due process clauses. We conclude that the trial
    court did not abuse its discretion in admitting and considering Dr. Harris’s opinion
    about the note’s authorship.
    79
    An expert witness may offer an opinion relating to a subject sufficiently
    beyond common experience when that opinion would assist the trier of fact.
    (Evid. Code, § 801.) Moreover, the Evidence Code specifically codifies the use of
    expert testimony in handwriting comparison. (Evid. Code, § 1418.) We have
    stated that a fact finder “ ‘need not be wholly ignorant of the subject matter’ ”
    (People v. McAlpin (1991) 
    53 Cal.3d 1289
    , 1299) covered in an expert’s opinion
    and that the opinion should be excluded only “ ‘when it would add nothing at all
    to’ ” the fact finder’s common knowledge. (Id. at p. 1300.)
    Dr. Harris’s opinion in this case was well within the bounds of acceptable
    expert testimony. Dr. Harris described himself as a full-time examiner of
    “questioned documents” for 38 years. He was certified by the American Board of
    Forensic Document Examiners, which he cofounded and served as its president for
    three years. Dr. Harris had qualified as a handwriting expert more than 1,000
    times in his career. Clearly, Dr. Harris’s expertise, experience, and opinion in
    examining questioned documents was useful to the trial court in assessing the
    authorship of the handwriting on the Love Insurance note and the note’s
    admissibility.
    Defendant also fails to show sufficient prejudice under Evidence Code
    section 352 to require the exclusion of Dr. Harris’s opinion. Broadly speaking,
    evidence tends to be more prejudicial than probative when it poses an intolerable
    risk to the fairness of the proceedings or reliability of the outcome. (People v.
    Dement (2011) 
    53 Cal.4th 1
    , 36.) Additionally, an expert should not be permitted
    to provide an opinion based on assumptions of fact without evidentiary support or
    based on mere speculation or conjecture. (Brown v. Ransweiler (2009) 
    171 Cal.App.4th 516
    , 530.) Although defendant cites legitimate factors that could
    undermine the reliability of the handwriting comparison, such as the small sample
    size, those concerns attach to the weight of the evidence, and do not require its
    80
    exclusion. We find no abuse of discretion in the admission of the expert’s
    opinion.
    d) The Reliability of Handwriting Comparison from a Photograph
    Defendant argues that our decision in Spottiswood v. Weir (1885) 
    66 Cal. 525
     forecloses a handwriting comparison based on a photograph of the original
    writing. In Spottiswood, decided more than a century ago, we held that a
    handwriting expert could not testify to the genuineness of a disputed writing based
    on a “press copy” of that writing.34 (Spottiswood, at p. 529.) In that case, no
    excuse was provided for the missing original writing and the genuineness of the
    “press copy” was disputed. (Ibid.) This court opined that it would be
    “ ‘dangerous’ ” to compare genuine samples with a press copy if its authenticity
    was in doubt. (Ibid.)
    The present case is distinguishable. First, unlike in Spottiswood, there is no
    dispute about the genuineness of the copy in this case. Defendant does not contest
    that the photograph depicts the original Love Insurance note. Second, the
    handwriting comparison in this case was based on a photograph, not a “press
    copy.”
    We have previously held a photographic negative to be admissible for the
    purpose of a handwriting comparison. (People v. McKenna (1938) 
    11 Cal.2d 34
         The United States Supreme Court described a press copy as a copy of the
    original made on “ ‘tissue paper’ ”: “after a letter has been written on ordinary
    paper, it is placed between the leaves of a book filled with this kind of paper, the
    pages upon which the copy is desired being usually dampened somewhat for that
    purpose, after which such book is subject to great pressure by means of a hand or
    other press. One or more impressions may thus be made of the written matter
    upon the leaves of this tissue paper.” (Lawrence v. Merritt (1888) 
    127 U.S. 113
    ,
    114-115.)
    81
    327.) In McKenna, we reasoned that the jury could properly weigh the resulting
    handwriting comparison testimony because the expert readily admitted that certain
    details could have been lost from the original. (Id. at pp. 337-338.) Similarly, in
    this case defendant was free to elicit — through cross-examination or otherwise —
    evidence of any inaccuracy or uncertainty generated by comparing a photographic
    copy rather than the original note. Under these circumstances, the photograph was
    properly admitted as the basis of the handwriting comparison, and Spottiswood
    does not apply.
    e) Exclusion at Trial of Defense Evidence Concerning the
    Unreliability of Handwriting Comparison Evidence
    Defendant argues that the trial court’s assertedly erroneous pretrial rulings
    also had the effect of foreclosing his ability to present at trial the testimony of his
    defense witnesses, Dr. Saks or another purported handwriting expert, law
    professor Dr. Mark Denbeaux, or to allow in-court testing of Dr. Harris during
    cross-examination at trial. As discussed, ante, at pages 73-77, the court excluded
    Dr. Saks and any in-court handwriting testing in connection with defendant’s
    challenge to the admissibility of the prosecution’s handwriting evidence during in
    limine proceedings. Defendant claims that the in limine rulings precluded him
    from effectively contesting the reliability of the state’s handwriting expert at trial,
    thereby violating his state and federal constitutional rights to due process,
    compulsory process, confrontation, trial by jury and to present a defense. But
    defendant has forfeited this claim because he did not offer the contemplated
    witnesses or evidence for purposes of challenging the credibility of the state’s
    handwriting expert at trial. (People v. Valdez (2004) 
    32 Cal.4th 73
    , 108.)
    Accordingly, at trial the trial court was not presented with these issues and never
    made any ruling prohibiting the presentation of this evidence.
    82
    An erroneous exclusion of evidence will constitute grounds for setting aside
    a finding or a verdict only when it has resulted in a miscarriage of justice and it
    appears on the record that the “substance, purpose, and relevance of the excluded
    evidence was made known to the court by the questions asked, an offer of proof,
    or by any other means.” (Evid. Code, § 354, subd. (a).) Defendant argues that the
    trial court’s prior in limine rulings and comments regarding the admissibility of his
    experts and in-court handwriting testing rendered futile any attempt to reraise the
    same evidence for trial. (See Evid. Code, § 354, subd. (b) [failure to object is
    excused when “[t]he rulings of the court made compliance with subdivision (a)
    futile”].)
    But, as explained, ante, at pages 73-81, the trial court ruled under Evidence
    Code section 352 that the proffered defense evidence did not render inadmissible
    the testimony of the state’s handwriting expert. The court’s comment that the
    admissibility of expert testimony concerning a handwriting match was
    “unassailable” did not address whether the defense evidence could be used to
    weaken the strength of such an expert’s conclusion later at trial. Instead, the court
    merely concluded that the proffered defense evidence was not useful in
    determining whether the state’s expert should be precluded from presenting his
    opinion of a match. In fact, the court remarked that it would be “open” to consider
    admitting some of the defense’s handwriting evidence at trial if defendant made a
    sufficient offer of proof. But defendant never made such an offer. (People v.
    Valdez, 
    supra,
     32 Cal.4th at p. 108 [to preserve on appeal a claim concerning the
    improper exclusion of evidence, the defense must make an offer of proof to inform
    the judge’s ruling].)
    In any event, the trial court permitted defendant to present David Oleksow,
    a handwriting expert for the San Diego County Sheriff’s Department crime
    laboratory, who questioned the state expert’s methodology in reaching his
    83
    conclusion of a match. Unlike Dr. Saks and Dr. Denbeaux, Oleksow was a
    qualified handwriting expert. Under these circumstances, defendant cannot
    complain of error.
    3. Opportunity to Challenge Robertson’s Identifications
    Defendant claims various deficiencies in the state’s evidence and errors in
    the trial court’s pretrial rulings conspired to deny him a fair opportunity to prove
    that Jodie Santiago Robertson’s identifications of him and his house were
    constitutionally tainted. He claims these errors and deficiencies violated his state
    and federal constitutional rights to due process, to a fair trial by jury, to
    compulsory process, to present a defense, to effective assistance of counsel and
    equal protection, and to fair and reliable capital guilt and sentencing
    determinations. These claims are forfeited, and, in any event, they are meritless.
    Specifically, defendant contends that Robertson’s memory was affected by
    posttrauma mental impairments; law enforcement failed to adequately document
    various contacts with her concerning her identification of defendant and his
    residence; and the officers failed to preserve the original pool of photos from
    which they created the six-pack photo lineup. Defendant also complains that the
    trial court refused to permit him to solicit the testimony of the prosecutor, who had
    witnessed some of the identification procedures, and refused to consider the
    testimony of an identification expert.
    With the exception of calling the prosecutor as a witness, defendant
    complained of none of these alleged circumstances during pretrial proceedings
    litigating the admissibility of Robertson’s identifications. Accordingly, nearly all
    of his claims are forfeited. (People v. Cunningham (2001) 
    25 Cal.4th 926
    , 989.)
    On their merits, his claims also fail.
    84
    Defendant faults law enforcement for inadequate documentation concerning
    Robertson’s interviews and identifications. Defendant argues that the record of
    Robertson’s first two communicative interviews while she was in the hospital was
    inadequate because the officers did not write their reports of these interviews until
    six months later. But defendant ignores the fact that, because Robertson could not
    talk during these first two interviews, they were conducted on paper — and those
    written original questions and answers had been preserved for trial. Defendant
    also complains that Robertson’s first composite sketch session with a detective
    was not properly documented, but he fails to note how this alleged deficiency is
    relevant given that Robertson was dissatisfied with the final version of the sketch.
    Defendant further claims that Robertson’s identification of defendant’s house was
    not adequately documented, and notes that officers who were in the patrol vehicle
    gave conflicting accounts of her identification. But defendant cites no authority
    supporting the duty of law enforcement to document such an identification
    procedure with greater precision.
    To the extent defendant appears to further argue that law enforcement’s
    alleged inadequate documentation of Robertson’s identifications violated his due
    process rights by the alleged failure to preserve favorable defense evidence under
    Trombetta, 
    supra,
     
    467 U.S. 479
    , defendant fails to make an adequate showing of
    materiality. Even assuming without deciding that Trombetta applies in the context
    of a photo lineup identification or a driveby identification of a residence, as
    explained above, defendant has not shown how any alleged deficiency deprived
    him of material evidence. “The mere possibility that an item of undisclosed
    information might have helped the defense, or might have affected the outcome of
    the trial, does not establish ‘materiality’ in the constitutional sense.” (United
    States v. Agurs (1976) 
    427 U.S. 97
    , 109-110.)
    85
    Defendant contends evidence conflicts concerning how quickly Robertson
    selected defendant’s photo in the six-pack lineup, whether she was told that she
    had identified defendant, and whether she and the detectives had a drink at the
    hotel bar after her identification. Defendant references articles concerning
    eyewitness recollection in support of the proposition that an accurate recording of
    these circumstances would permit the assessment of any undue postidentification
    reinforcement placed on Robertson. But because none of these articles were
    presented, or even available, at the time of trial and are not part of this record, this
    proposition is without foundation.
    Additionally, defendant assigns as error the trial court’s refusal to allow
    him to call at a pretrial hearing the prosecutor as a witness regarding the
    admissibility of Robertson’s identifications. Two years earlier, the prosecutor had
    given testimony on these exact issues, and the court reviewed that testimony in
    assessing admissibility. Under these circumstances, the court properly denied
    defendant’s request to question the prosecutor again, especially when the
    prosecutor admitted that his recollection of Robertson’s identifications was worse
    than when he testified two years prior.
    Finally, defendant claims that the trial court refused to consider the
    testimony of his expert witness at the pretrial hearing. However, the court
    permitted the defense expert to testify over the prosecutor’s objection, and there is
    nothing in the record suggesting that the court refused to consider that testimony
    in determining the admissibility of Robertson’s identifications.
    Defendant was not denied a fair opportunity to challenge the admissibility
    of Robertson’s identifications.
    86
    4. Robertson’s Identification of Defendant in a Photo Lineup
    Defendant contends that Robertson’s pretrial and trial identifications of
    defendant were based on a photo lineup that originated from suggestive and
    unreliable identification procedures. He argues that the trial court erred by failing
    to suppress Robertson’s identification of him and that the error violated his
    constitutional rights to due process and the reliability of his sentence
    determination under the Eighth Amendment. The court did not err.
    “In order to determine whether the admission of identification evidence
    violates a defendant’s right to due process of law, we consider (1) whether the
    identification procedure was unduly suggestive and unnecessary, and, if so, (2)
    whether the identification itself was nevertheless reliable under the totality of the
    circumstances, taking into account such factors as the opportunity of the witness to
    view the suspect at the time of the offense, the witness’s degree of attention at the
    time of the offense, the accuracy of his or her prior description of the suspect, the
    level of certainty demonstrated at the time of the identification, and the lapse of
    time between the offense and the identification.” (People v. Cunningham, 
    supra,
    25 Cal.4th at p. 989.) It is defendant’s burden to demonstrate the existence of an
    unreliable identification procedure. (Ibid.) “We review deferentially the trial
    court’s findings of historical fact, especially those that turn on credibility
    determinations, but we independently review the trial court’s ruling regarding
    whether, under those facts, a pretrial identification procedure was unduly
    suggestive.” (People v. Gonzalez (2006) 
    38 Cal.4th 932
    , 943.)
    Defendant claims that, prior to Robertson being shown the photo lineup,
    several circumstances unduly influenced her and predisposed her to identify him
    in the six-photo lineup. He claims that Robertson’s memory was affected because
    of her injuries; she had an emotional need to have her attacker be brought to
    justice; her participation in making the composite sketches may have tainted her
    87
    memory; and that the process of questioning her was suggestive. He also argues
    that law enforcement may have strongly suggested to her that the suspect would be
    in the lineup by informing her that they had a suspect, flying her down
    immediately from Seattle, and being present as she viewed the lineup. But these
    assertions are speculative, and defendant fails to reveal that the identification
    procedures were in fact actually unduly suggestive.
    We note that at the time of the hearing on defendant’s motion to suppress
    Robertson’s identification there was evidence that Robertson’s memory had
    ceased at the point when she was being choked — but she retained the memory of
    her abduction and subsequent drive to the residence where she was assaulted.
    During that earlier period, she had a lengthy opportunity to view her kidnapper.
    Accordingly, defendant has not shown that the aforementioned circumstances
    were unduly suggestive causing Robertson’s identification of defendant’s photo to
    be unreliable.
    Defendant articulates a number of specific criticisms about the photo lineup
    itself. He claims that none of the other five photos featured a person with bulging
    eyes; none of the other photos featured a person with unparted “feathered” hair;
    the mustaches among the six photos were inconsistent in that two photos showed
    mustaches extending below the lip (inconsistent with Robertson’s description); the
    man in the third photo was muscular and tanned (also inconsistent with
    Robertson’s description); defendant was the only person wearing the same shirt
    color as described by Robertson; and defendant’s photo was slightly larger than
    the others and centrally placed in the top row of the lineup.
    In denying defendant’s motion, the trial court aptly stated: “On the issue of
    the photo lineup, the law does not require a perfect lineup, only that it be a lineup
    that is a fair one, and that it not be impermissibly suggestive. . . . The lineup here
    is a good one. All the young men that were in the photos were of the same general
    88
    type. They were all blondish, they all had moustaches, they were the same type of
    individual, approximately the same age. To the extent that defendant has focused
    on certain aspects of differences in treatment between Mr. Lucas’s photo and the
    others, such as the fact that Mr. Lucas’s photo was larger, or his face was
    larger within the photo, that it occupied the top center position. . . . I find that
    these [were] small factors of difference between them — and they did
    not constitute impermissibly suggestive factors within the lineup.”
    The trial court’s observations are fully supported upon examination of the
    actual photo lineup. Although law enforcement should make efforts to minimize
    such discrepancies, defendant’s face is only slightly larger than the faces shown in
    the other photos. Moreover, the six photos also all bear a fair resemblance to the
    second composite sketch prepared by the police sketch artist. In this light, any
    differences concerning the clothing, mustaches, and build of the persons in the
    lineup are minor. In any event, we have recognized that “ ‘[b]ecause human
    beings do not look exactly alike, differences are inevitable’ ” and the primary
    concern “ ‘is whether anything caused defendant to “stand out” from the others in
    a way that would suggest the witness should select him.’ ” (People v. Gonzalez,
    
    supra,
     38 Cal.4th at p. 943, quoting People v. Carpenter (1997) 
    15 Cal.4th 312
    ,
    367.) Although defendant’s photo does display eyes that are somewhat more
    “bulging” than the men in the other photos, “ ‘it would be virtually impossible to
    find five others who had’ . . . similar eye[s] ‘and who also sufficiently resembled
    defendant in other respects.’ ” (People v. Gonzalez, 
    supra, at p. 943
    .)
    Defendant argues that certain protective measures were necessary to
    minimize the possibility of suggestiveness, but, as we explain, his claims are
    forfeited and not required by due process. (People v. Virgil (2011) 
    51 Cal.4th 1210
    , 1256 [if “the challenged procedure was not unduly suggestive, our inquiry
    into the due process claim ends”].)
    89
    Defendant claims the admonition that police gave to Robertson before she
    looked at the photo lineup — that she “should not infer anything from the fact that
    the photographs are being shown to you or that we have a suspect in custody at
    this time” — was insufficient. Defendant argues that Robertson should also have
    been told that the suspect may not be in the lineup, that the suspect’s head and
    facial hair could have changed since the crimes, and that an equally important
    purpose of a lineup is to clear innocent persons and not just identify guilty ones.
    Defendant further claims that the police should have shown Robertson the
    photographic lineup using a “double blind” procedure in which the administrator
    of the lineup procedure is also unaware of which photo depicts the suspect.
    Defendant made no such arguments in challenging the admissibility of
    Robertson’s identification. Forfeiture aside, we have never required that certain
    pre-lineup admonitions be given before a victim views a photographic lineup or
    that it be administered in a double blind procedure. The due process inquiry
    focuses on circumstances that are unduly suggestive. (People v. Virgil, 
    supra,
     51
    Cal.4th at p. 1256.) As discussed above, there was no undue suggestiveness in the
    procedures actually employed in Robertson’s identification.
    5. Robertson’s Identification of Defendant’s Residence and Seat
    Covers
    Defendant contends the trial court erred by refusing to determine whether
    Robertson’s identifications of defendant’s residence and seat covers were the
    result of undue suggestiveness and that these identifications should have been
    suppressed. He claims the errors violated his state and federal constitutional rights
    to a fair jury trial and to due process and his Eighth Amendment right to a reliable
    determination of both his guilt and penalty. The trial court did not err.
    Defendant theorizes that Robertson’s identifications of defendant’s
    residence and seat covers should have been subjected to the same due process
    90
    scrutiny applicable to photographic and live lineups in determining admissibility.
    Neither the United States Supreme Court nor this court has addressed whether the
    due process protections necessary for identification of a suspect is equally
    applicable to the identification of inanimate objects. Nearly every jurisdiction that
    has addressed the issue, however, has concluded that “any suggestiveness in the
    identification of inanimate objects is relevant to the weight, not the admissibility,
    of the evidence.” (People v. Miller (Mich. 1995) 
    535 N.W.2d 518
    , 523; see
    Johnson v. Sublett (9th Cir. 1995) 
    63 F.3d 926
    , 932 [“There is no authority
    holding that a defendant’s due process right to reliable identification procedures
    extends beyond normal authenticity and identification procedures for physical
    evidence offered by the prosecution”]; United States v. Zenone (4th Cir. 1998) 
    153 F.3d 725
    ; Johnson v. Ross (2d Cir. 1992) 
    955 F.2d 178
    ; Commonwealth v. Cole
    (Pa. 2005) 
    889 A.2d 501
    ; State v. Crannell (Vt. 2000) 
    750 A.2d 1002
    ; Hughes v.
    State (Miss. 1999) 
    735 So.2d 238
    ; Brooks v. State (Ind. 1990) 
    560 N.E.2d 49
    , 57-
    58; State v. Roscoe (Ariz. 1984) 
    700 P.2d 1312
    ; State v. Cyr (N.H. 1982) 
    453 A.2d 1315
    , 1317-1318; State v. King (Wash. 1982) 
    639 P.2d 809
    , 811-812; State v.
    Bruns (Iowa 1981) 
    304 N.W.2d 217
    ; Commonwealth v. Simmons (Mass. 1981)
    
    417 N.E.2d 1193
    ; People v. Coston (Colo. 1977) 
    576 P.2d 182
    , 185; Inge v.
    Commonwealth (Va. 1976) 
    228 S.E.2d 563
    , 567; but see Dennis v. State (Fla.
    2002) 
    817 So.2d 741
    , 760 [“The factors to be considered in the determination of
    whether the identification of the vehicle was reliable are all comparable to factors
    considered in a witness’s identification of a suspect”].)
    But we need not decide this issue. Even assuming that identification
    procedures of inanimate objects should be subject to the same due process scrutiny
    applicable to photographic and live lineups in determining admissibility, that
    circumstance would bear no significance here. Robertson never identified the seat
    covers as being the same covers used in the vehicle she was abducted in. Instead,
    91
    she only identified them as being similar. As to her identification of defendant’s
    residence, there was some conflicting evidence as to whether one of the officers
    may have pointed out the house after the police vehicle had made a U-turn and
    before Robertson had identified it. But Robertson testified that she had already
    recognized the house before asking the officers to make the U-turn. Thus, any
    suggestiveness did not affect her identification. The evidence was properly
    admitted.
    6. Exclusion of Impeachment Evidence Against Detectives Involved in
    the Robertson Case
    Defendant claims the trial court committed prejudicial error in excluding
    evidence, during pretrial hearings, that two detectives involved in the Robertson
    investigation gave false and/or misleading testimony and violated a criminal
    suspect’s Miranda rights in an unrelated matter, People v. Cavanaugh, San Diego
    County Superior Court No. CRN 10868 (Cavanaugh). Defendant argues that this
    evidence of perjury and other professional misconduct was admissible as proof of
    specific instances of the detectives’ dishonesty and willingness to lie under oath in
    order to secure a criminal conviction. He contends this evidence was relevant for
    purposes of both defendant’s in limine rulings concerning the Robertson case and
    for impeachment use at trial. He claims the court’s refusal to admit evidence from
    the Cavanaugh matter violated his state and federal constitutional rights to due
    process, a fair jury trial and compulsory process under the Sixth and Fourteenth
    Amendments. We disagree.
    The defendant sought to present various impeachment evidence against
    Detectives Henderson and Fullmer from the Cavanaugh matter: (1) The
    detectives allegedly violated the murder suspect’s Miranda rights in Cavanaugh;
    (2) Henderson allegedly gave misleading testimony about the Miranda violation;
    (3) Fullmer allegedly provided false testimony about seeing a tape recorder in the
    92
    suspect’s purse at the crime scene; and (4) Fullmer allegedly gave false testimony
    about seeing a red light on the tape recorder, indicating that it was recording, when
    he moved the purse.
    In assessing the relevance of this evidence, the trial court noted that it was
    familiar with the materials associated with the Cavanaugh investigation and had
    considered that evidence when it took testimony from Detectives Henderson and
    Fullmer during in limine hearings. Concerning the admissibility of this evidence
    at trial, the court found that here, the detectives were “not the prime prosecution
    witnesses,” but merely “tangential witnesses,” and that evidence corroborated
    Robertson’s description of her attacker prior to defendant’s becoming a suspect.
    The court, therefore, concluded that the minimal probative value of the evidence
    was substantially outweighed by the undue consumption of time required to
    present it.
    At the outset, we reject the contention that the trial court failed to consider
    the Cavanaugh evidence in assessing defendant’s various in limine motions
    concerning the reliability of Robertson’s description of her attacker and her
    identification of defendant and his residence. The court previously had reviewed
    the materials from the Cavanaugh case and clearly stated it had that evidence in
    mind when Detectives Henderson and Fullmer testified during the in limine
    proceedings. The court further emphasized that it had scrutinized their testimony
    in light of the Cavanaugh evidence. Therefore, we reject defendant’s claim that
    the court did not consider this impeachment evidence in deciding in limine rulings
    concerning the Robertson case.
    Furthermore, we also reject defendant’s contention that the Cavanaugh
    matter contained vital impeachment evidence that should have been presented to
    the jury.
    93
    We previously have noted that “impeachment evidence other than felony
    convictions entails problems of proof, unfair surprise, and moral turpitude
    evaluation which felony convictions do not present.” (People v. Wheeler (1992) 
    4 Cal.4th 284
    , 296.) Courts should, under Evidence Code section 352, “consider
    with particular care whether the admission of such evidence might involve undue
    time, confusion, or prejudice which outweighs its probative value.” (People v.
    Wheeler, 
    supra, at pp. 296-297
    .) “A trial court’s ruling to admit or exclude
    evidence offered for impeachment is reviewed for abuse of discretion and will be
    upheld unless the trial court ‘exercised its discretion in an arbitrary, capricious, or
    patently absurd manner that resulted in a manifest miscarriage of justice.’ ”
    (People v. Ledesma (2006) 
    39 Cal.4th 641
    , 705, quoting People v. Rodriguez
    (1999) 
    20 Cal.4th 1
    , 9-10.) Applying this standard, we conclude there was no
    abuse of discretion.
    Defendant argues that the detectives were key trial witnesses whose
    credibility was “crucial” in resolving discrepancies in the evidence regarding
    Robertson’s identification of defendant and his home. But Detective Henderson
    was not present in the car during the drive-by when Robertson identified the
    house, undercutting defendant’s contention that Henderson was a “crucial”
    witness. Moreover, Detective Fullmer testified as a defense witness that someone
    in the car said “this house” or “what about this house” as Fullmer drove Robertson
    past defendant’s home. To support the defense theory that the procedure was
    suggestive, it would have been in the defendant’s interest that Fullmer be believed
    and not be impeached by the Cavanaugh evidence.
    Additionally, any doubt concerning Robertson’s identification of
    defendant’s home was convincingly negated by her sketch of the exterior and
    interior layout of his home. Robertson made this sketch before she positively
    identified defendant’s home, and she correctly identified it as having a circular
    94
    driveway with stepping stones leading to a porch. Furthermore, her drawing of the
    interior layout of the home was a near-perfect match of the actual layout of
    defendant’s home. Defendant provides no explanation of how the detectives could
    have improperly influenced Robertson’s sketch when the detectives themselves
    could not have known the interior layout of defendant’s home at that point in the
    investigation.
    Regarding Robertson’s identification of defendant as her assailant,
    evidence corroborated her description of him before defendant became a suspect,
    which tends to negate defendant’s claim that the detectives conspired to
    improperly influence her to identify him as the attacker. A week after her
    abduction, Robertson described the assailant’s car as “brown, two-door, possibly a
    280Z.” She described her attacker as blond haired and blue eyed. On December
    4, 1984, when Henderson and Fullmer visited Robertson in Seattle and before
    seeing any photo lineup, she described the attacker’s eyes as distinctively “bugged
    out” and his hair as “feathered.” Concerning the attacker’s car, she stated that the
    seat covers were sheepskin. All of these details could be corroborated
    independently of any testimony that Detectives Henderson and Fullmer could
    provide. Defendant claims the truthfulness of Fullmer and Henderson’s testimony
    about their visit to Seattle and the subsequent photo lineup was “crucial,” but he
    fails to note any contradictory evidence regarding these aspects of the
    investigation.
    Defendant further argues that the detectives’ credibility was “crucial” in
    evaluating contradictory evidence concerning when the defendant became a
    suspect in the case, a hospital nurse’s statement about Robertson identifying the
    defendant’s car as a brown Colt, and how quickly Robertson identified defendant
    from the photo lineup. Although the detectives’ credibility may have been
    probative on these issues, because much of this contradictory evidence was
    95
    explored in pretrial hearings and was never offered by defendant at trial, defendant
    fails to show how any additional impeachment evidence would have helped the
    jury assess these issues at trial.
    Defendant also contends that the evidence of perjury and misconduct would
    have been highly probative concerning whether the detectives intentionally
    constructed the photo lineup in a suggestive manner. However, the admissibility
    of the lineup had been determined before trial. And, in any event, the trial court
    found it possible for the jury to objectively evaluate the suggestiveness of the
    lineup independent of considerations about the detectives’ intent, noting that “[i]f
    it wasn’t fair and if it suggested to her the wrong person, then it wasn’t fair, and it
    doesn’t matter what [the detectives] did.”
    Finally, in light of the amount of evidence defendant had proposed to
    present on this collateral matter, the trial court did not abuse its discretion by
    ruling that the Cavanaugh materials would “take weeks” to put on and that the
    probative value of such evidence did not substantially outweigh the contemplated
    undue consumption of time. The Cavanaugh materials consisted of at least “two
    volumes of files” from the “long, lengthy [Sheriff’s] investigation,” as well as
    “several hundred pages” of transcripts from the case hearing. In addition,
    defendant indicated his intent to present interrogation tapes, photos, and
    investigation reports from the Cavanaugh case to prove Fullmer and Henderson’s
    specific acts. The court could have reasonably foreseen that the admission of this
    evidence would lead to “nitpicking wars of attrition over collateral credibility
    issues.” (People v. Wheeler, 
    supra,
     4 Cal.4th at p. 296.) The amount of evidence
    was also likely to lead to jury confusion. Evidence Code section 352 gives the
    trial court wide latitude in preventing such occurrences. (People v. Quartermain
    (1997) 
    16 Cal.4th 600
    , 624.) Thus, we find no error.
    96
    Even assuming there was error, it would be harmless under any standard.
    (Chapman v. California (1967) 
    386 U.S. 18
    , 24 (Chapman) [constitutional error
    must be assessed for prejudice under the harmless beyond a reasonable doubt
    standard]; People v. Watson (1956) 
    46 Cal.2d 818
    , 836 (Watson) [error is harmless
    under state law unless it is reasonably probable that a result more favorable to
    defendant would have occurred absent error].) It is highly unlikely that the
    absence of the Cavanaugh evidence caused the jury to find that the defendant was
    guilty of attempting to kill Robertson. Although the evidence could have
    discounted the credibility of the detectives, the record contains ample uncontested
    evidence to support the jury’s conclusion concerning defendant’s guilt, including
    Robertson’s descriptions of her attacker, which was fully corroborated before the
    detectives focused on defendant as a suspect.
    7. Robertson’s Prior Sexual Conduct
    Defendant assigns error to the trial court’s decision to exclude evidence of
    Robertson’s prior sexual conduct — specifically that she had met a man at a bar
    and spent the night with him on the night before her assault. Defendant argues
    that this excluded evidence was relevant to impeach Robertson’s memory of
    leaving the bar alone on the night of the crimes. Defendant claims the court’s
    ruling violated his state and federal rights to present a defense, due process,
    compulsory process, confrontation, and effective representation of counsel. The
    court properly excluded the evidence as irrelevant.
    During pretrial proceedings, Robertson testified that she had gone to a
    restaurant with her brother on the night before her abduction. At that restaurant
    she met a man, Neil Reynolds, and went dancing with him. Robertson spent that
    night with Reynolds at his apartment. Seizing on Robertson’s alleged memory
    problems, the defense argued that Robertson may have had gaps in her memory
    97
    about the attack and that she had filled in that gap with the story of being abducted
    by someone who drove a sports car. The defense argued that her prior sexual
    encounter was relevant to show that Robertson was the kind of person who met
    men at bars and that she may have done the same with her assailant on the night of
    the crimes.
    The trial court acknowledged that Robertson’s prior sexual encounter might
    be relevant to explain the presence of semen found on Robertson’s vaginal swab
    because Reynolds also could have been a contributor to the ABO factor on the
    swab. The court, however, further explained that the prior sexual encounter was
    not relevant to prove that Robertson left the bar with someone on the night of her
    attack. Moreover, it stated that, even if the evidence had some minor probative
    value, under Evidence Code section 352, it would be substantially outweighed by
    its prejudicial effects. The court, nevertheless, made clear that the defense could
    present evidence of Robertson’s sexual encounter with Reynolds in challenging
    whether there was evidence she had been raped.
    On appeal, defendant appears to make an argument different from what he
    advanced below. Before the trial court, the defense essentially argued that the
    prior sexual encounter reflected evidence of Robertson’s character and that she
    may have acted consistent with that character on the night of her attack.35 On
    appeal, however, defendant now confusingly argues that the prior sexual encounter
    was evidence of Robertson’s character and relevant to impeach Robertson’s
    memory on the night of the crimes, but that it was not relevant to prove her
    conduct on the night in question. Regardless, defendant’s claim is forfeited
    because he did not argue this reasoning before the trial court. (People v. Benson
    35     The defense cited no authority in support of this argument.
    98
    (1990) 
    52 Cal.3d 754
    , 786, fn. 7.) Furthermore, the claim is without merit. As
    previously discussed, a trial court’s decision to exclude impeachment evidence
    under Evidence Code section 352 is reviewed for an abuse of discretion. (People
    v. Ledesma, supra, 39 Cal.4th at p. 705.) Evidence of Robertson’s single sexual
    encounter prior to the murder did little to establish her character and added
    nothing to impeach the reliability of her memory. To the contrary, her recollection
    of defendant, his sports car, and his home established that her memory was quite
    accurate. Accordingly, the trial court did not act “in an arbitrary, capricious, or
    patently absurd manner that resulted in a manifest miscarriage of justice” by
    excluding this evidence. (People v. Rodriguez, 
    supra,
     20 Cal.4th at pp. 9-10.)
    8. Admissibility of the Swanke Blood Evidence
    In People v. Kelly, supra, 
    17 Cal.3d 24
    , we adopted a three-pronged test to
    establish the reliability of scientific testing and its scientific basis to determine its
    admissibility. “The first prong requires proof that the technique is generally
    accepted as reliable in the relevant scientific community. [Citation.] The second
    prong requires proof that the witness testifying about the technique and its
    application is a properly qualified expert on the subject. [Citation.] The third
    prong requires proof that the person performing the test in the particular case used
    correct scientific procedures.” (People v. Bolden, 
    supra,
     29 Cal.4th at pp. 544-
    545, citing Kelly, supra, 17 Cal.3d at p. 30.)
    Defendant argues the trial court erred in rulings during in limine
    proceedings regarding the admissibility of the blood-testing evidence derived from
    Anne Swanke’s fingernails, which tested consistent with defendant’s blood type,
    and the blood evidence tested from defendant’s sheepskin seat cover, which tested
    consistent with Swanke’s blood type. Specifically, defendant argues that both the
    GM and KM antibody blood testing failed prongs one and three, and that the ABO
    99
    and electrophoretic blood testing failed prong three. He claims the erroneous
    admission of the Swanke blood analysis evidence deprived him of a fair and
    reliable trial proceeding and violated his rights under the Sixth, Eighth and
    Fourteenth Amendments. The trial court properly rejected these challenges.
    a) First-prong and Third-prong Kelly Challenges to GM and KM
    Antibody Testing
    Defendant’s first-prong Kelly challenge concerning the admissibility of the
    GM and KM antibody genetic testing fails because proof of a scientific
    technique’s general acceptance in the relevant scientific community is no longer
    required once a published appellate decision affirms a trial court’s ruling admitting
    evidence obtained by that scientific technique. (People v. Bolden, 
    supra,
     29
    Cal.4th at p. 545.) Subsequent to defendant’s trial, this court and several Courts of
    Appeal have upheld the admissibility of GM and KM testing using the same
    techniques employed here. (People v. Riel (2000) 
    22 Cal.4th 1153
    , 1192
    [concluding that the agglutination inhibition technique used to test for GM and
    KM genetic markers is generally accepted in the relevant scientific community];
    see People v. Yorba (1989) 
    209 Cal.App.3d 1017
    ; People v. Morganti (1996) 
    43 Cal.App.4th 643
    .) Although this published case law postdates defendant’s trial,
    “that circumstance does not cause us to doubt the scientific reliability of the
    testing.”36 (People v. Riel, supra, at p. 1192.)
    36     Defendant also attacks the first prong of Kelly itself, claiming that this
    aspect of our analysis violates federal due process by undermining the trial court’s
    gatekeeping function and barring relevant evidence at the pretrial stage.
    Essentially, defendant argues that the first prong of Kelly improperly relies upon
    what the scientific community accepts as to the reliability of a technique, thereby
    supplanting the trial court’s independent determination of reliability as required by
    Daubert v. Merrell Dow Pharmaceuticals, Inc. (1993) 
    509 U.S. 579
    . But we have
    previously rejected such claims, and defendant offers no persuasive reason for
    reconsideration of our conclusion. (People v. Leahy (1994) 
    8 Cal.4th 587
    , 593-
    (Footnote continued on next page.)
    100
    Defendant’s third-prong Kelly challenge to the admissibility of the GM and
    KM antibody genetic testing also fails. He claims that the SERI laboratory’s GM
    and KM testing of the material recovered from Swanke’s fingernails was improper
    because the lab did not use procedural controls and did not photograph the test
    results. But defendant fails to point to any evidence showing that the failure to use
    controls or to photograph the results violated generally accepted procedural
    practices or that their omissions rendered the test results unreliable. (People v.
    Fierro (1991) 
    1 Cal.4th 173
    , 215.)
    b) Third-prong Kelly Challenge to ABO Blood Testing
    Defendant further argues that the third prong of Kelly was not satisfied
    because the San Diego County Sheriff’s Department laboratory notes did not state
    its protocols for ABO testing, because SERI’s ABO results were not confirmed by
    other tests, and because SERI used a different procedure for the ABO control test.
    Defendant calls this different procedure a “mixed standard,” but his terminology is
    confusing. More precisely, defendant refers to control testing in which the analyst
    confirms the presence of antiserum for each of the main blood types — A, B, AB,
    and O. In one standard form of such testing, there are separate controls for each of
    the main blood types. In an alternative standard, to which defendant objects, the
    analyst can use just two controls, AB and O, to determine the type of antiserum
    present in the control sample.
    (Footnote continued from previous page.)
    604 [holding that the Kelly prongs survived Daubert in this state].) In addition,
    our opinion in Sargon Enterprises, Inc. v. University of Southern California
    (2012) 
    55 Cal.4th 747
     did not, by using the term “gatekeeper,” indicate any move
    away from the Kelly test toward the federal Daubert standard. (Sargon
    Enterprises, Inc. v. University of Southern California, supra, 
    55 Cal.4th 747
    , 772,
    fn. 9.)
    101
    The lack of written documentation in the San Diego County Sheriff’s
    Department crime laboratory does not prove that incorrect procedures governed
    that facility’s ABO testing of the evidence. To the contrary, criminalist Charles
    Merritt testified at the Kelly hearing, explaining his ABO testing of the evidence.
    During his testimony, defendant cross-examined Merritt extensively about the
    procedures he employed, but defendant raised no specific faults relevant to a third-
    prong challenge concerning Merritt’s described procedures at trial nor does he do
    so here on appeal.
    Defendant complains that SERI’s ABO testing did not comply with
    generally accepted testing procedures in the scientific community because the lab
    conducted no other testing to confirm the results. But none of the testifying
    experts stated that there was a consensus in the scientific community regarding
    whether a second, confirming test is required concerning forensic blood work.
    One expert testified that confirming tests are general practice for blood donations
    made at blood banks, but offered no opinion concerning forensic work. The other
    experts testified merely that confirming testing is used at some laboratories, and
    each acknowledged that the use of confirmatory tests was an evolving trend in
    ABO testing. None of the experts, however, established that confirmatory testing
    was an established procedure that reflected the consensus of the scientific
    community.
    Finally, defendant also complains that SERI’s ABO testing did not comply
    with generally accepted testing procedures because the lab used an alternative
    procedure for the ABO control tests by using two controls instead of three. His
    claim is contradicted by the record. Mark Stolorow, a forensic scientist from the
    Division of Forenic Sciences of the Illinois State Police, testified repeatedly that
    SERI’s alternative procedure for its ABO control testing was merely a matter of
    preference for the analyst and that the method produces valid results.
    102
    c) Third-prong Kelly Challenge to Electrophoretic Testing
    Defendant additionally argues that the third prong of Kelly was not satisfied
    because SERI’s electrophoretic blood testing was not verified by a second reader.
    He also alleges that a photograph of the electrophoretic results was not an
    adequate substitute for “double-reader concurrence,” in which a second analyst
    must independently review the test results and agree with the first analyst’s
    conclusions. Defendant further claims that the test result was unreliable because it
    was based on the subjective interpretation of the reader and not objectively
    verifiable scientific standards. We have previously rejected similar claims,
    recognizing that “these matters were appropriately presented to the trier of fact to
    consider in weighing the accuracy of” of the test results and did not affect their
    admissibility. (People v. Cook (2007) 
    40 Cal.4th 1334
    , 1347.) Defense counsel
    presented these criticisms at the appropriate stage — at trial in front of the jury.
    Defendant additionally argues that test results requiring any level of
    subjective interpretation violates the constitutional guarantees of due process, and
    a jury trial, as well as the need for heightened reliability in a capital case. Again,
    however, defense counsel at trial vigorously cross-examined the state’s expert
    witness regarding the tests, and the jury was allowed to assess for itself whether
    the test results were reliable. Defendant’s rights concerning this evidence were
    fully protected by those circumstances. (People v. Stoll, supra, 49 Cal.3d at
    p. 1159 [“issues of test reliability and validity may be thoroughly explored on
    cross-examination at trial”].)
    d) The Right to Counsel During the Electrophoretic Testing
    Defendant next argues, as he did below, that he had a constitutional right,
    under the Sixth Amendment and the state Constitution, to be notified of the
    103
    electrophoretic testing and to have his counsel present during the testing in order
    to help ensure the test’s reliability.37 Neither we nor the high court has ever
    imposed a duty on the prosecution to invite a defendant, through counsel, to
    participate in investigatory forensic testing.
    Forensic testing is not recognized as a critical stage of the proceedings at
    which an accused has the right to counsel. “ ‘[S]ystematized or scientific
    analyzing of the accused’s fingerprints, blood sample, clothing, hair, and the like
    . . . [involve] differences which preclude such stages being characterized as critical
    stages at which the accused has the right to the presence of his counsel.
    Knowledge of the techniques of science and technology is sufficiently available,
    and the variables in techniques few enough, that the accused has the opportunity
    for a meaningful confrontation of the Government’s case at trial through the
    ordinary processes of cross-examination of the Government’s expert witnesses and
    the presentation of the evidence of his own experts. The denial of a right to have
    his counsel present at such analyses does not therefore violate the Sixth
    Amendment; they are not critical stages since there is minimal risk that his
    counsel’s absence at such stages might derogate from his right to a fair trial.’ ”
    (Ent v. Department of Motor Vehicles (1968) 
    265 Cal.App.2d 936
    , 939-940,
    quoting United States v. Wade (1967) 
    388 U.S. 218
    , 227-228; see People v.
    Cooper, 
    supra,
     53 Cal.3d at p. 816 [“The prosecution and court allowed the
    defense to participate in the [blood] testing on condition that the prosecution learn
    the results,” and “[t]he defense could choose to accept the condition or not
    37     “Electrophoresis allows typing of individual blood proteins and enzymes
    found in a blood sample by a method that separates electrically charged
    molecules.” (People v. Morris, 
    supra,
     53 Cal.3d at p. 206.)
    104
    participate in the testing,” but “[f]orcing such a choice does not violate the
    Constitution or any other provision of law”].)
    Consequently, there was no violation of defendant’s right to counsel or his
    right of confrontation concerning the electrophoretic blood testing.
    9. Shannon Lucas’s Statements Concerning the Dog Collar
    Defendant contends the trial court erred by ruling on an in limine motion to
    admit at trial his deceased wife’s statement that the dog choke-chain found around
    Anne Swanke’s neck was that of the couple’s dog, Duke. He claims the admission
    of this statement violated several provisions of the Evidence Code because it did
    not qualify as a spontaneous statement under the hearsay rule, constituted
    inadmissible opinion evidence, violated the marital privilege, and should not have
    been admitted under Evidence Code section 352. Defendant further contends the
    asserted error violated his rights to confrontation and due process and deprived
    him of his Eighth and Fourteenth Amendment rights to fair and reliable guilt,
    death eligibility and sentencing determinations. We agree that the admission of
    the statement violated defendant’s confrontation rights, but the error was harmless.
    The trial court explored the admissibility of this evidence in pretrial
    hearings. On the day of defendant’s arrest, Detective Craig Henderson
    interviewed defendant’s wife, Shannon Lucas, at the sheriff’s office, where their
    conversation was tape-recorded. In the course of the interview, Shannon
    described the couple’s pets and Detective Henderson opened a bag that contained
    the choke chain found around Swanke’s neck and showed it to her. Shannon
    audibly gasped, and, according to Detective Henderson, she sat back, opened her
    eyes wider, and appeared stunned. Shannon then stated, “That’s, um, one of
    Duke’s. We had — the kids used to — my son and my sister’s daughter used to
    play with that and they half choked Duke to death.”
    105
    Shannon refused to testify against defendant at the preliminary hearing by
    asserting the marital privilege under Evidence Code section 970. After she died
    unexpectedly before trial, the prosecution argued that her interview statement was
    admissible as a spontaneous utterance. Over the defense’s numerous objections,
    including on confrontation grounds, the trial court concluded that this statement
    qualified as a spontaneous utterance, finding that it was a “response to something
    that shocked her.” This was the only portion of Shannon’s statement admitted at
    trial.
    Defendant claims that the admission of Shannon’s statement violated his
    right to confront the witnesses against him because she was unavailable for cross-
    examination at trial. The admission of testimonial statements offered against a
    defendant violates the Sixth Amendment confrontation clause unless the witness
    who made the statement is unavailable at trial and the defendant had a prior
    opportunity for cross-examination. (Crawford v. Washington (2004) 
    541 U.S. 36
    (Crawford).) After her husband’s arrest, Shannon made her statement to a law
    enforcement officer while being questioned at a police station. Testimonial
    statements can comprise those “ ‘statements that were made under circumstances
    which would lead an objective witness reasonably to believe that the statement
    would be available for use at a later trial.’ ” (Id. at p. 52.)
    It seems apparent that Shannon’s statement was testimonial for
    confrontation purposes. More importantly, her unavailability at trial rendered her
    statement inadmissible because defendant had no prior opportunity to cross-
    examine her at the preliminary hearing as a result of her assertion of the marital
    privilege. In Crawford itself, statements to the police by the defendant’s wife
    were held to be inadmissible, because the defendant was unable to cross-examine
    106
    her due to the marital privilege.38 (Crawford, supra, 541 U.S. at pp. 40, 68.) We
    conclude that the admission of Shannon’s statement violated defendant’s right of
    confrontation. Accordingly, we need not decide defendant’s other contentions
    concerning the admissibility of this statement.
    But the error was harmless beyond a reasonable doubt. (Chapman, 
    supra,
    386 U.S. at p. 24; People v. Geier (2007) 
    41 Cal.4th 555
    , 608.) Shannon’s
    recognition of the dog collar found around Swanke’s neck was just one small part
    of the confluence of circumstantial evidence linking defendant to Swanke’s
    abduction. The evidence established that defendant left his friend’s home around
    the same time Swanke had become stranded on the side of the road. An
    eyewitness actually saw the abduction and remembered an unusual personalized
    license plate at the scene that was remarkably close to the license plate on
    defendant’s vehicle. Blood evidence found in that vehicle was consistent with
    Swanke. Tissue and blood recovered from under Swanke’s fingernails were
    consistent with defendant’s blood characteristics. Lastly, several witnesses
    testified that defendant had severe and long facial scratches the day after Swanke’s
    abduction, and a significant length of skin tissue was found crumpled under one of
    Swanke’s fingernails. Given that the defense also presented significant evidence
    38      In Crawford, Washington state law forbid the defendant’s spouse from
    testifying without the defendant-husband’s consent, which he refused to give.
    (Crawford, supra, 541 U.S. at p. 40.) The high court expressly stated that it was
    not addressing whether the defendant had waived his confrontation rights by
    invoking the marital privilege. (Id. at p. 42, fn. 1.) Here, however, our state’s
    marital privilege does not afford the other spouse a “veto” over the spouse’s
    decision to testify. (Evid. Code, § 970.) Thus, it was solely Shannon Lucas’s
    decision not to testify against defendant at the preliminary hearing, and her right to
    assert that privilege is distinct from defendant’s right of confrontation even though
    the assertion benefitted defendant.
    107
    concerning the commonality of the type of dog chain recovered from Swanke’s
    neck, Shannon’s statement was not a decisive part of the evidence against
    defendant.
    C. Motion to Recuse the Prosecutor’s Office
    Defendant contends the trial court prejudicially erred in denying his motion
    to recuse the office of the San Diego County District Attorney because of an
    alleged conflict of interest arising from the prior abandoned prosecution of John
    Massingale for the Jacobs killings. The trial court did not abuse its discretion.
    After the district attorney dropped charges against Massingale for the
    Jacobs homicides and charged defendant with those crimes instead, Massingale
    obtained a finding of factual innocence under section 851.8. Massingale then filed
    a civil lawsuit in federal court against the City and County of San Diego and those
    responsible for his police interrogations regarding the Jacobs murders. In
    defendant’s motion to recuse the entire district attorney’s office, defendant alleged
    a conflict of interest because the office argued inconsistently in the civil suit that
    law enforcement had not improperly obtained Massingale’s confession, but argued
    in defendant’s criminal case that Massingale’s confession was involuntary.
    According to section 1424, which governs motions to disqualify the
    prosecutor: “The motion may not be granted unless the evidence shows that a
    conflict of interest exists that would render it unlikely that the defendant would
    receive a fair trial.” We have explained that a conflict “ ‘ “exists whenever the
    circumstances of a case evidence a reasonable possibility that the DA’s office may
    not exercise its discretionary function in an evenhanded manner,” ’ ” and that such
    conflict may disqualify the office “ ‘only if it is “so grave as to render it unlikely
    that defendant will receive fair treatment.” ’ ” (Hambarian v. Superior Court
    108
    (2002) 
    27 Cal.4th 826
    , 833, quoting People v. Eubanks (1996) 
    14 Cal.4th 580
    ,
    592, 594.)
    Assuming the prosecutor took conflicting positions in different forums on
    the voluntariness of Massingale’s confessions, defendant fails to show how such a
    conflict was “so grave” that it rendered his trial unfair. He does not explain how
    the conflict may have altered any trial testimony to his detriment. If anything, the
    prosecutor’s assertion in the civil case that Massingale’s confession was voluntary
    would have encouraged those who interrogated him to describe Massingale’s
    confession as uncoerced, and this circumstance would have assisted defendant in
    his third-party culpability defense. The trial court properly denied the motion.
    D. Asserted Errors During Jury Selection
    1. Challenge to Jury Venire
    Defendant claims he made a preliminary showing that the panels from
    which the trial court selected his jurors underrepresented Hispanics and young
    persons. Therefore, according to defendant, the court erred in denying his motion
    for discovery of jury composition information, which in turn denied him a fair
    opportunity to challenge the composition of his jury panels. He asserts the errors
    denied him a jury selected from a fair cross-section of the community in violation
    of his rights to due process and equal protection under the United States
    Constitution. We conclude that the court properly denied defendant’s discovery
    request and that defendant failed to show that his jury was selected from an unfair
    cross-section of the community.
    a) The Requests for Discovery
    Before the prosecutions of the Robertson, Strang, Fisher, and Swanke
    homicides and the Jacobs and Garcia homicides were consolidated into a single
    case, defendant successfully obtained discovery orders from each trial court
    109
    directing the San Diego County jury commissioner to provide him access to the
    commissioner’s qualified jurors list, summons collected from prospective jurors
    on the list, written excuses received from prospective jurors on the list, the names
    and addresses of jurors who provided written excuses, and the names and
    addresses of jurors who did not appear. These orders also permitted defendant to
    distribute questionnaires to prospective jurors who did appear, asking them about
    their age, residence, ethnicity, income, prior jury experience, gender, and whether
    they would receive their regular salary during jury service. As a result of these
    orders, defendant was able to survey a total of nine panels of prospective jurors
    who appeared on three dates in August 1985, three dates in December 1985, and
    three dates in January 1986. In total, defendant surveyed 1,734 prospective jurors
    who appeared for service.
    In June 1986, defendant successfully obtained a third discovery order, from
    the trial court assigned to the Jacobs and Garcia murders, for the commissioner to
    provide defendant with a qualified jurors list, certified jurors lists, and juror pay
    cards for the preceding 12 months.
    In September 1986, defendant filed a fourth and fifth discovery motion (one
    for each of defendant’s cases), which initially requested 33 items. It was later
    modified at a subsequent hearing, to request the following five items from the jury
    commissioner for the preceding year: 1) the qualified jury lists or the weekly or
    monthly list of persons to whom jury summons are sent; 2) the list of those
    persons who reported for service for each period described above; 3) the list of
    those persons excused or excluded on the basis of those who responded to the
    written summons and the reasons for each such exclusion; 4) the commissioner’s
    procedures or policies for the preparation of the master jury list; and 5) the name
    and designation of the computer program used to implement jury selection in San
    Diego County. In this motion, defendant’s counsel alleged that the 1980 census
    110
    revealed that approximately 14.8 percent of residents in San Diego County were
    Hispanic, but the approximate representation of Hispanics who sat on juries in the
    county was 8 percent. Counsel also declared that he consulted with an expert in
    the field of jury composition research, Dr. Edgar Butler of the University of
    California at Riverside, and that Dr. Butler described the requested information as
    relevant in ascertaining any bias in how prospective jurors are impanelled. The
    prosecution opposed the motion as duplicative of the prior motions, burdensome to
    the jury commissioner, and based upon an insufficient showing of disparity
    concerning the representation of Hispanics.
    Argument concerning the fourth discovery motion took place before Judge
    Franklin Orfield, who then was presiding over the Robertson, Strang, Fisher, and
    Swanke murders. At that hearing, the jury coordinator, Geraldine Stevens,
    testified, as did defense expert witnesses, Dr. Butler and Dr. Oscar Kaplan, a
    professor at San Diego State University. Based on her analysis of the prior two
    defense surveys, Stevens calculated that 9 percent of the surveyed prospective
    jurors who appeared for service were Hispanic. According to Dr. Butler, the 1980
    census showed that Hispanics constituted 14.74 percent of the San Diego County
    population, and he estimated that the 1985 Hispanic population had risen to 17.25
    percent. Similarly, Dr. Kaplan estimated that the Hispanic population for San
    Diego County was nearing 15 percent. But neither defense expert had any data
    revealing the 1985 jury-eligible Hispanic population, and both conceded that the
    1980 census figure would be higher than the population actually eligible for jury
    service at that time.
    On cross-examination, Dr. Butler conceded that he had participated in an
    Orange County case in which he was able to calculate the jury-eligible Hispanic
    population. According to Dr. Butler, based on 1980 census data, Orange County
    had a 14.8 percent Hispanic population, nearly identical to San Diego County’s
    111
    1980 census data. Based on 1980 data compiled by the Center for Continuing
    Study of the California Economy, the percentage of Hispanic persons in Orange
    County who were 18 years of age or older, citizens, and English speaking was 8.4
    percent. Relying on 1985 projections of the Hispanic population being between
    15.77 and 19.3 percent, Dr. Butler projected that between 9.07 and 11.16 percent
    of Hispanic persons in Orange County were jury eligible in 1985. Dr. Butler
    admitted that similar 1980 jury-eligible data for San Diego County existed
    (presumably from the Center for Continuing Study of the California Economy)
    and could be obtained with “some effort,” but he did not have such data at the
    time.
    Judge Orfield denied defendant’s discovery motion, noting that despite the
    three prior orders of discovery, “nothing has been shown in any of the studies
    which would indicate that [a] further and deeper study should be made.” The
    court noted that the jury commissioner’s office had expended “a very substantial
    amount of work” to comply with the previously ordered discovery and that the
    new request was even more burdensome. The court concluded that “[i]t’s been
    made to appear that the representation of Hispanics is proper in San Diego County
    with respect to the Hispanic population.” The court observed that Dr. Butler could
    not state with any certainty the reasons for his recommendations and stated that
    Dr. Kaplan’s statistical estimates appeared unreliable.
    A few weeks later, Judge William Kennedy, who was presiding over the
    Jacobs and Garcia murders, denied defendant’s fifth discovery motion, refusing to
    reconsider the matter in light of Judge Orfield’s ruling on the similar fourth
    discovery motion. Defendant, however, argued that the results of his prior surveys
    were out of date, and Judge Kennedy granted defendant’s additional request to
    submit questionnaires to prospective jurors who appeared for jury duty on five
    112
    dates in November and December 1986. Of the 817 prospective jurors surveyed,
    9.5 percent identified themselves as Hispanic.
    b) The Motion to Quash the Venire
    In December 1986, defendant filed a motion to challenge the composition
    of San Diego County juries and to quash all of its available jury panels. The
    motion provided no statistical data to support its allegation that the county’s jury
    selection process was defective but the defense stated it would provide such
    evidence at the hearing on this motion. The prosecution opposed the motion.
    In March 1987, after both cases were consolidated and assigned to Judge
    Laura Palmer Hammes, defendant, for the sixth time, moved for discovery of jury
    composition information and to distribute questionnaires for surveying additional
    prospective jurors. Judge Hammes denied discovery of additional prospective
    juror information, relying on the prior rulings of Judges Orfield and Kennedy, but
    permitted questionnaires to be given to prospective jurors on seven dates in March
    through April 1987. In addition to race and ethnicity, these questionnaires also
    probed the prospective jurors’ age and income. Judge Hammes told defense
    counsel that if they found something that could persuade the court to order more
    discovery, defendant could renew his request for prospective juror information.
    As a result of this round of surveys, defendant collected data from 1,213
    prospective jurors. In this group, 8.1 percent identified themselves as Hispanic.
    Later that year, defendant filed another motion to compel the jury
    commissioner to distribute questionnaires to prospective jurors who arrived for
    jury service on seven dates in September 1987. The trial court denied the motion,
    noting that the defendant had the opportunity to survey 1,200 prospective jurors
    recently and hundreds prior to that. The court denied defendant’s motion without
    prejudice to renewal if a new jury pool was created the following year.
    113
    Eventually, the court allowed defendant to survey additional prospective jurors in
    January and February of 1988. In those surveys, 10.7 percent of the prospective
    jurors who arrived for jury service identified themselves as Hispanic.
    In June 1988, the court held a hearing on defendant’s renewed motion to
    challenge the composition of San Diego County juries and to quash all of its
    available jury panels. In support of having a full hearing on the motion to
    challenge the composition of the jury, defendant made offers of proof regarding
    the alleged underrepresentation of Hispanics and young adults aged between 18
    and 24.
    Concerning the representation of Hispanics, defendant made the following
    offer of proof: (1) Using a computer program that identifies Hispanic surnames,
    16.4 percent of the San Diego County master jury list contained individuals with
    Spanish surnames, which was probably consistent with the then-existing Hispanic
    population in the county over the age of 18; (2) after written and call-in excuses in
    response to the initial juror summons were taken into account, the percentage of
    Hispanics dropped to 14 percent; and (3) only 10.7 percent of individuals who
    appeared for jury service self-identified as Hispanic.
    Regarding the representation of young adults aged between 18 and 24,
    defendant made the following offer of proof: (1) Based on data gathered in
    another, unrelated case, young adults in San Diego County comprise
    approximately 22 percent of the total eligible jurors; (2) only 9.1 percent of young
    adults appeared for jury service; (3) this disparity could not be fully accounted for
    based on young adults relocating due to military or college commitments; and (4)
    young adults are a cognizable group for purposes of jury selection representation
    because they have attitudes and beliefs unique from other groups.
    The trial court denied the requested evidentiary hearing and the related
    motion. The court concluded that the statistics presented by defendant constituted
    114
    an insufficient offer of proof and did not suggest that Hispanics were being
    underrepresented because “the court cannot tell what caused the difference”
    between the 14 percent who responded to the initial juror summonses and the 10.7
    percent who actually appeared for jury service. The court stated that “a good
    inference could be drawn that at least a certain percentage of that [difference]
    would be based on others who did not speak English or are aliens and who did not
    call, but who did not show up for those reasons.” Concerning young adults, the
    court admitted that there was a large disparity between their prevalence in the
    population and their prevalence in the appearing jury pools, but concluded that
    defendant’s survey of this age group did not demonstrate any homogeneity as to
    whether “young people are less apt to convict than older people,” and, therefore,
    young adults were not a cognizable group.
    c) Analysis
    Under the federal and state Constitutions, a defendant is entitled to a jury
    drawn from a representative cross-section of the community. (U.S. Const., Sixth
    Amend.; Cal. Const., art. I, § 16; Duren v. Missouri (1979) 
    439 U.S. 357
    , 358-367;
    People v. Howard (1992) 
    1 Cal.4th 1132
    , 1159.) This guarantee mandates that
    courts select juries from pools that do not systematically exclude distinctive
    groups in the community. (People v. Burney (2009) 
    47 Cal.4th 203
    , 225.)
    In order to investigate whether the court has failed to draw a jury from a
    representative cross-section of the community, we have recognized that a
    defendant has certain rights to discovery. In such a circumstance, “we consider
    not whether defendant has made a prima facie case [of underrepresentation], but
    the prior question of whether defendant was wrongly denied the discovery of
    information necessary to make such a case.” (People v. Jackson (1996) 
    13 Cal.4th 1164
    , 1194.) Accordingly, instead of making a prima facie case of
    115
    underrepresentation, a defendant need only make “a particularized showing
    supporting a reasonable belief that underrepresentation in the jury pool or the
    venire exists as the result of practices of systematic exclusion.” (Ibid., italics
    added.) Upon such a showing, “the court must make a reasonable effort to
    accommodate the defendant’s relevant requests for information designed to verify
    the existence of such underrepresentation and document its nature and extent.”
    (Ibid.) As explained below, defendant failed to make a particularized showing
    supporting a reasonable belief that his jury was selected from an unfair cross-
    section of the community. The trial court, therefore, properly denied defendant’s
    discovery request.
    At the outset, we have held that young persons are not a cognizable group
    for purposes of an equal protection challenge to a jury’s composition. (People v.
    Lewis (2008) 
    43 Cal.4th 415
    , 482; see People v. Ayala, 
    supra,
     23 Cal.4th at
    p. 256.) Hispanics, however, are a cognizable group for purposes of such
    challenges. (See Castaneda v. Partida (1977) 
    430 U.S. 482
    , 495.)
    In assessing defendant’s fourth discovery motion to probe the composition
    of the venire, Judge Orfield correctly concluded that defendant had failed to make
    a particularized showing supporting a reasonable belief concerning
    underrepresentation of Hispanics in the jury pool to justify further discovery.39
    Even though his own expert asserted it was available, defendant failed to provide
    the most relevant statistic to support his discovery request — demographic data
    showing the percentage of Hispanics who are presumptively eligible for jury
    service. Instead, defendant presented general population data concerning
    39    Accordingly, Judge Hammes did not err in relying on this prior ruling to
    deny defendant’s additional discovery requests.
    116
    Hispanics in San Diego County and compared that percentage with the number of
    Hispanic persons who appeared for jury service. In People v. Harris (1984) 
    36 Cal.3d 36
    , 54 (Harris), we recognized that such a comparison is problematic
    because general population data do not identify how many in the class are actually
    qualified for jury service; therefore, “a showing that that class’ representation in
    the jury pool is less than the group’s percentage of the general population does not
    necessarily show that the group is underrepresented.” Although we recognized
    that it might be difficult for a defendant to obtain precise data concerning the
    number of persons qualified to serve, we noted that “more refined statistics would
    be preferable if available, [but] when they are not, it is sufficient for the defendant
    to show a significant disparity based on the use of total population figures.”40
    (Harris, supra, at p. 54.)
    Here, the more relevant and precise statistic was available with “some
    effort” according to the defense expert. Indeed, the same defense expert had
    previously obtained similar data for Orange County. Yet, the defense relied on the
    general population statistic, which would obviously portray a greater statistical
    disparity when compared with the percentage of Hispanics who appeared for jury
    service. Given the amount of effort the jury commissioner expended in complying
    40      This portion of the opinion in Harris was endorsed by only a three-justice
    plurality of this court. We later recognized that census data regarding adult
    populations were readily available, and we subsequently clarified that, for
    purposes of making a prima facie showing of underrepresentation, henceforward
    “a defendant who has access to census or other demographic data that reflect adult
    population figures must base his challenge on that data.” (People v. Bell (1989) 
    49 Cal.3d 502
    , 526, fn. 12.) At the time of defendant’s trial, Harris was the
    controlling case, but Harris did not address the threshold showing required for a
    discovery request and did not concern a scenario in which the defense expert
    admitted that a more relevant statistic, the percentage of adult Hispanics who
    could speak English, was available but not obtained.
    117
    with defendant’s three prior requests for discovery and given that defendant had
    access to the key statistical data relevant to the existence or nonexistence of any
    disparity, it was not unreasonable to expect defendant to make a more precise
    showing before granting his additional, and largely repetitive, discovery requests.
    Moreover, we note that the defense expert’s testimony concerning the
    adjoining jurisdiction, Orange County, strongly suggested that the percentage of
    Hispanic persons who appeared for jury service in San Diego County was
    consistent with the jury eligibility of Hispanics in the San Diego County
    population. According to Dr. Butler, Orange and San Diego Counties had nearly
    identical 1980 census data concerning the percentage of its Hispanic population,
    and the percentage of Hispanic persons in Orange County who were 18 years of
    age or older, citizens, and English speaking was 8.4 percent. Dr. Butler projected
    that the 1985 population in Orange County contained between 9.07 and 11.16
    percent who were jury eligible and Hispanic. This projection was roughly
    consistent with the 9 percent calculation made by the jury coordinator in San
    Diego County after defendant surveyed more than 1,700 prospective jurors.
    Absent any showing by defendant that the demographics of Orange and San Diego
    Counties were not comparable, it was not unreasonable for the trial court to
    conclude that defendant failed to show that a “further and deeper study should be
    made.” Defendant made no particularized showing supporting a reasonable belief
    of underrepresentation in the San Diego County jury pool that would justify
    further discovery.
    Defendant also failed to make a prima facie showing of underrepresentation
    of Hispanics for purposes of challenging the San Diego County venire. To
    establish a prima facie violation of the fair cross-section requirement, defendant
    must show (1) that the group excluded was “distinctive”; (2) representation of the
    group in venires is not fair and reasonable in relation to community; and (3) this
    118
    underrepresentation is due to systematic exclusion. (People v. Ayala, 
    supra,
     23
    Cal.4th at p. 256.) By the time the trial court heard defendant’s motion to quash
    the venire, defendant had surveyed literally thousands of prospective jurors over a
    period of less than three years. The surveys showed that between 8.1 and 10.7
    percent of prospective jurors who appeared for service identified themselves as
    Hispanic. As previously explained, defendant had access to statistics that could
    have more precisely described the percentage of the county population who were
    Hispanic and jury eligible, but he failed to present them during the nearly three
    years he litigated his fair cross-section claim. Additionally, the statistics that
    defendant did present appeared consistent with the defense expert’s projections in
    adjoining Orange County, which had a comparable proportion of Hispanic
    residents.
    But even assuming, for the sake of argument, that defendant’s statistics did
    reveal an underrepresentation of Hispanics, defendant’s claim still fails because he
    made no showing that any alleged underrepresentation was the result of systematic
    exclusion. In fact, defendant’s own offer of proof revealed that the county’s
    master jury list contained a fair cross-section of the Hispanic community, 16.4
    percent, which he admitted was probably consistent with the then existing
    Hispanic population in the county over the age of 18. Therefore, any disparity
    arose only after summoned prospective jurors mailed or telephoned excuses or
    simply did not respond to the summons. Defendant failed to explain how this
    apparently neutral excusal system was “an improper feature of the jury-selection
    process.” (People v. Howard, 
    supra,
     1 Cal.4th at p. 1160.) Indeed, it appears that
    “[t]he foregoing method does not discriminate on the basis of ethnicity or national
    origin.” (People v. Ayala, 
    supra,
     23 Cal.4th at p. 256.) Accordingly, the trial
    court was correct in noting that defendant had not explained “what caused the
    difference” between the 14 percent who remained in the venire after responses to
    119
    the juror summonses and the 10.7 percent who actually appeared for jury service.
    The additional data defendant collected as the result of his later discovery motions
    were roughly consistent with the previous data defendant collected, but that data
    also failed to show any systematic exclusion.
    2. Voir Dire Concerning Defendant’s Prior Rape Conviction
    Defendant claims the trial court erred by precluding his counsel from
    asking prospective jurors during voir dire about the effect of defendant’s prior rape
    conviction on their ability to fairly judge defendant’s penalty. He contends this
    violated his state and federal rights to due process and trial by a fair jury and
    violated his Eighth Amendment right to a reliable, fair, and impartial sentencing
    trial. We conclude the trial court did not abuse its discretion in limiting fact-
    specific questions concerning defendant’s 1973 rape conviction.
    “ ‘[D]eath-qualification voir dire must avoid two extremes. On the one
    hand, it must not be so abstract that it fails to identify those jurors whose death
    penalty views would prevent or substantially impair the performance of their
    duties as jurors in the case being tried. On the other hand, it must not be so
    specific that it requires prospective jurors to prejudge the penalty issue based on a
    summary of the mitigating and aggravating evidence likely to be presented.
    [Citation.] In deciding where to strike the balance in a particular case, trial courts
    have considerable discretion.’ ” (People v. Zambrano (2007) 
    41 Cal.4th 1082
    ,
    1120-1121, quoting People v. Cash (2002) 
    28 Cal.4th 703
    , 721-722.) Regarding
    the limits of this discretion, “the court’s refusal to allow inquiry into such facts is
    improper only if it is ‘categorical’ [citation] and denies all ‘opportunity’ to
    ascertain juror views about these facts.” (People v. Carasi (2008) 
    44 Cal.4th 1263
    , 1286, quoting People v. Vieira (2005) 
    35 Cal.4th 264
    , 286-287.)
    120
    As defendant concedes, the trial court told defense counsel that he could
    “certainly explore how strongly they [prospective jurors] feel about rape and
    whether that’s ever touched their lives and whether they would be very, very, very
    prejudiced against somebody who did such a thing.” The court observed that such
    inquiry would “give you an indication that that’s the person who will take that one
    aggravating factor and vote death . . . .” The trial court repeatedly clarified that
    such open-ended questions about rape were permissible. Therefore, although the
    trial court prohibited specific questions about defendant’s 1973 rape conviction,
    the court did not abuse its discretion because it did not categorically bar questions
    concerning rape as an aggravating factor.
    3. Challenge for Cause
    Defendant contends the trial court erred and violated his constitutional right
    to an impartial jury by denying a defense challenge for cause against Prospective
    Juror S.B., who eventually sat on defendant’s jury. Defendant concedes that he
    had 11 available peremptory challenges when his jury panel was sworn in but did
    not challenge S.B.
    By failing to use one of his remaining 11 peremptory challenges to remove
    Prospective Juror S.B., defendant forfeited his claim. (People v. Davis (2009) 
    46 Cal.4th 539
    , 582.) Defendant suggests several reasons why we should reconsider
    the application of forfeiture under these circumstances, but none of them address
    the obvious, long-recognized maxim that “ ‘ “errors committed in overruling
    challenges for cause are not grounds of reversal, unless it be shown an
    objectionable juror was forced upon the challenging party after he had exhausted
    his peremptory challenges; if his peremptory challenges remain unexhausted, so
    that he might have excluded the objectionable juror by that means he has no
    ground of complaint.” ’ ” (People v. Schafer (1911) 
    161 Cal. 573
    , 577, quoting
    121
    People v. Durrant (1897) 
    116 Cal. 179
    , 196-197.) Defendant further argues that,
    in capital trials, forfeiture should not apply in this circumstance unless the
    defendant personally waives his right to an impartial jury. But even in capital
    cases the scope of counsel’s authority “extends to matters such as deciding what
    witnesses to call, whether and how to conduct cross-examination, what jurors to
    accept or reject, what motions to make, and most other strategic and tactical
    determinations.” (People v. McKenzie (1983) 
    34 Cal.3d 616
    , 631.)
    Moreover, defendant’s argument assumes he was tried by an unfair juror.
    He was not. Although Prospective Juror S.B. acknowledged during questioning
    that she categorized the murder of a child as a heinous crime that would cause her
    to lean substantially in favor of a death sentence and that she would require proof
    that a sentence of life should be imposed instead, she also clarified that she would
    “listen to the mitigating circumstances and things of that nature before [she] could
    make a definite judgment.” When presented with a hypothetical child-murder in
    which the defendant presents no mitigating evidence at the penalty phase, S.B.
    stated she would be willing to openly discuss alternative penalties because a
    fellow juror may have interpreted something from the guilt phase as mitigating.
    Finally, when asked why she could consider a life sentence instead of a death
    sentence for someone guilty of murdering six persons, including two children,
    S.B. responded: “I think I have compassion.”
    Because these statements indicated that Prospective Juror S.B. had not
    prejudged defendant’s penalty but remained open to considering the evidence and
    consulting her compassion in deciding the appropriate penalty, the trial court
    properly denied the challenge for cause. (People v. Mason (1991) 
    52 Cal.3d 909
    ,
    953-954 [challenge for cause properly denied when prospective juror stated she
    would always vote for death for murder of a fellow inmate, but later clarified that
    122
    she would consider the evidence and could see herself realistically voting for a life
    sentence].)
    4. Publication of Juror Information
    Defendant contends the trial court erred by denying his request, made
    before jury selection, to withhold from the press the names of the jurors or
    prospective jurors, and he claims this error violated his state and federal
    constitutional rights to due process, a fair trial by jury, and reliable guilt and
    penalty verdicts. We disagree.
    Defendant filed a motion to prohibit the media from photographing jurors,
    contacting jurors prior to the completion of the trial, and from publishing the
    names of jurors. Various local media outlets opposed the motion. Defendant
    offered no evidence, other than the nature of the case itself, explaining why a
    protective order was needed to ensure the fairness of defendant’s trial. The trial
    court ordered the media not to videotape or photograph any of the jurors or
    prospective jurors and prohibited any interviews inside the courtroom. The court
    denied defendant’s motion to prohibit the media from publishing the names of
    jurors.
    Our courts have noted that “[p]rior restraints are ‘one of the most
    extraordinary remedies known to our jurisprudence’ [citation] and carry a heavy
    burden against constitutional validity.” (South Coast Newspapers, Inc. v. Superior
    Court (2000) 
    85 Cal.App.4th 866
    , 870, quoting Nebraska Press Assn. v. Stuart
    (1976) 
    427 U.S. 539
    , 562.) Most are invalid, but “prior restraints may be imposed
    under some extraordinary circumstances.” (Wilson v. Superior Court (1975) 
    13 Cal.3d 652
    , 661.) According to the high court, the trial court must examine the
    evidence before it to determine “(a) the nature and extent of pretrial news
    coverage; (b) whether other measures would be likely to mitigate the effects of
    123
    unrestrained pre-trial publicity; and (c) how effectively a restraining order would
    operate to prevent the threatened danger.” (Nebraska Press Assn. v. Stuart, 
    supra, at p. 562
    .) In NBC Subsidiary (KNBC-TV), Inc. v. Superior Court (1999) 
    20 Cal.4th 1178
    , 1217-1218, we stated that, before a prior restraint can be upheld, “a
    trial court must hold a hearing and expressly find that (i) there exists an overriding
    interest supporting closure and/or sealing; (ii) there is a substantial probability that
    the interest will be prejudiced absent closure and/or sealing; (iii) the proposed
    closure and/or sealing is narrowly tailored to serve the overriding interest; and (iv)
    there is no less restrictive means of achieving the overriding interest.” (Fns.
    omitted.)
    Although defendant asserted generally that public disclosure of jurors’
    names would interfere with his right to a fair trial, he offered no evidence
    supporting the proposition that prejudice to that interest was substantially probable
    without the prior restraint. There was no evidence that the media sought to
    identify the jurors publicly either before or during trial or that there was a clear
    danger that jurors would be pressured if publicly identified. As evidence of
    prejudice, defendant refers to a juror who, in an abundance of caution, reported to
    the court that she had received a threat on her answering machine during the trial,
    but the juror herself believed that it “surely had nothing to do with this trial.”
    Because defendant advanced only an abstract argument concerning the danger of
    infringement on his right to a fair trial, the trial court properly exercised its
    discretion and concluded that it had no choice but to deny his motion. (See South
    Coast Newspapers, Inc. v. Superior Court, supra, 85 Cal.App.4th at pp. 873-874.)
    124
    III. GUILT PHASE ISSUES
    A. Evidentiary Issues — Asserted Errors
    1. Admissibility of the Love Insurance Note
    a) Failure to Authenticate the Love Insurance Note
    Defendant argues that the trial judge erred and violated his state and federal
    rights to due process by failing to subject the photographs of the front and back of
    the handwriting on the Love Insurance note to an authentication process under
    Evidence Code sections 1400 and 1401. Under defendant’s theory, the judge was
    obligated to make a preliminary finding that these photographs were authentic
    “writings.” He also claims that the trial court committed prejudicial error by not
    instructing the jury to determine the note’s authenticity. These contentions are not
    persuasive.
    A writing must be authenticated before being admitted into evidence or
    before secondary evidence of its contents is received. (Evid. Code, § 1401.) A
    writing is admissible if a finding of authentication is supported by a preponderance
    of the evidence. (Jazayeri v. Mao (2009) 
    174 Cal.App.4th 301
    , 321.) The
    proponent of a writing satisfies the requirement of authentication when he or she
    introduces evidence sufficient to sustain a finding that the writing is what it is
    purports to be. (Evid. Code, § 1400.) Even if conflicting inferences can be drawn
    from the evidence supporting authentication, that consideration goes to the weight
    of the evidence and not to its admissibility. (Jazayeri v. Mao, supra, at p. 321.)
    The record indicates that the trial court did consider and rule on the issue of
    authentication. In a portion of a pretrial motion, the defense raised the
    authentication issue in detail. When the prosecution sought admission of various
    Polaroid photos of the Love Insurance note at trial, the court asked whether
    defendant had any objection, and defendant requested leave to cross-examine the
    125
    witness first, which the court granted. The next day, after cross-examination, the
    prosecution once again moved to admit the same three photographs of the note.
    Defense counsel stated that there were “existing objections on the record” and that
    he was renewing them. The court replied: “[The objections] are noted. [The
    photographs] are admitted at this time.” When the prosecutor asked if he was
    permitted to show the photos to the jury, the court responded that he was. The
    trial judge was briefed on the authentication issue and, by admitting them into
    evidence, impliedly found the photographs to be authentic.
    We reject defendant’s claim that the evidence was insufficient to support a
    finding that the photographs were authentically what the prosecution claimed them
    to be — accurate depictions of the note found on the Jacobses’ bathroom rug.
    Detective Gleason testified that the photographs accurately depicted how the note
    was found folded and how it appeared on both sides after being unfolded. Stewart,
    the police lab technician, also testified that he took the photographs and that they
    represented the note. This testimony provides sufficient evidence that the
    photographs accurately depicted the two sides of the note.41
    41      Defendant, for the first time on appeal, also advances a certification
    challenge, arguing that the note’s admission did not comply with Evidence Code
    sections 1531 and 1551, which, together, allow a photographic copy of a destroyed
    original writing to be admitted as if it were the original writing so long as the
    person who created the photographic copy attaches a certification attesting that the
    photo is a correct copy of the original. Defendant forfeited any challenge under
    Evidence Code sections 1531 and 1551 by failing to object on these grounds
    below. (Quality Wash Group V Ltd. v. Hallak (1996) 
    50 Cal.App.4th 1687
    , 1698.)
    In any event, the testimony of Stewart precludes any possible prejudice in failing
    to strictly comply with the provisions of Evidence Code sections 1531 and 1551.
    (People v. Skiles (2011) 
    51 Cal.4th 1178
    , 1186 [certification establishes only “a
    presumption of authenticity and is not the sine qua non of admissibility”].)
    126
    Defendant also contends that the court erred in failing to instruct on
    contested authentication, as required by Evidence Code section 403, subdivision
    (c)(1). The Attorney General does not dispute this claim. Under that section,
    when a court accepts evidence of a document’s authenticity but that authenticity
    remains contested, it “[m]ay, and on request shall, instruct the jury to determine
    whether the preliminary fact exists and to disregard the proffered evidence unless
    the jury finds that the preliminary fact does exist.” (Evid. Code, § 403, subd.
    (c)(1).) Because defendant contested the authenticity of the photographs and
    requested such an instruction, the trial court erred by failing to give the instruction.
    Still, the error was harmless. First, defendant contends that this error
    violated his federal constitutional rights under the Sixth and Fourteenth
    Amendments by preventing the jury from deciding all relevant issues of fact and
    weighing the credibility of the evidence. We examine “the nature of the evidence
    presented to determine whether it was likely the omitted instructions affected the
    jury’s evaluation of the evidence.” (People v. Moon (2005) 
    37 Cal.4th 1
    , 38.) The
    instructions in this case did not advise the jurors to assume the photographs were
    authentic, but rather failed to advise them to consider the authenticity of the photos
    before relying on them. This did not rise to the level of a federal constitutional
    violation, and state law error in admitting evidence is subject to harmless error
    analysis under Watson. (People v. Partida (2005) 
    37 Cal.4th 428
    , 439.) Under
    Watson, defendant must demonstrate a reasonable probability that a result more
    favorable to defendant would have been reached absent the error. (Watson, 
    supra,
    46 Cal.2d at p. 836.) Here there was no reasonable likelihood that the jury would
    have found the photographs to be inaccurate representations of the note while
    simultaneously relying on those photographs to place defendant at the crime scene.
    (See Assem. Com. on Judiciary com., reprinted at 29B pt. 1B West’s Ann. Evid.
    Code (2011 ed.) foll. § 403, p. 21 (West’s Annotated Evidence Code) [stating that
    127
    an instruction on conditional relevancy is often not necessary, giving the example
    of a contested deed — “[n]o rational jury could find the deed to be spurious and,
    yet, to be still effective to transfer title from the purported grantor”].)
    b) Failure to Comply with the Best Evidence Rule
    Defendant argues that the photograph of the Love Insurance note should
    not have been admitted in light of the “best evidence rule.”42 Defendant contends
    that the note was admitted to prove its contents because the prosecution relied on
    the name of the insurance company and its contact information as circumstantial
    evidence linking defendant to the crime scene. Additionally, defendant avers that
    the prosecution’s comparative handwriting analysis relied on the contents of the
    note by examining the “shape, formation and style of each letter and numeral.”
    According to defendant, the original note should have been offered to prove its
    contents and the photograph was not an admissible substitute. We disagree.
    We will consider a claim of erroneously admitted evidence only when the
    original objection to the evidence was both timely and specific. (Evid. Code,
    § 353, subd. (a); People v. Abel (2012) 
    53 Cal.4th 891
    , 924.) Further, the
    objection must be specific enough as to “fairly inform the trial court, as well as the
    party offering the evidence, of the specific reason or reasons the objecting party
    believes the evidence should be excluded, so the party offering the evidence can
    respond appropriately and the court can make a fully informed ruling.” (People v.
    Partida, supra, 37 Cal.4th at p. 435.)
    42     The so-called best evidence rule was codified as Evidence Code former
    section 1500 et seq. Effective January 1, 1999, it was renumbered and retitled,
    and is now called the secondary evidence rule. (See Evid. Code, § 1520 et seq.)
    We apply the rule as it existed at the time of defendant’s trial.
    128
    In this case, defendant never made a specific best evidence rule objection at
    the time the photographs of the Love Insurance note were introduced into
    evidence. He objected to the photographs, citing merely “existing objections on
    the record,” but we have found no “best evidence” objection in the record. In
    pretrial briefing, defendant claimed that folds in the original paper affected the
    handwritten letters, causing the potential loss of writing material for purposes of
    handwriting comparison, but he did not make reference to the best evidence rule.43
    Instead, the specific best evidence rule objection to the note was raised, and
    rejected, nearly five months later in connection with arguments concerning jury
    instructions. Defendant forfeited this claim by failing to make a specific best
    evidence rule objection at the time the photographs were introduced into evidence.
    (See People v. Boyette (2002) 
    29 Cal.4th 381
    , 423-424 [defendant’s objection to
    admission of photographs was not preserved on appeal when he failed to object
    when they were used in questioning witnesses but then objected at a later stage
    when the prosecution entered them into evidence].)
    In any event, the claim lacks merit. The former best evidence rule (see
    ante, fn. 42) codified in Evidence Code section 1500, provided, in pertinent part,
    that “no evidence other than the writing itself is admissible to prove the content of
    a writing.” (Stats. 1965, ch. 299, § 2, pp. 1297, 1350.) But under this former
    provision, a copy of a writing was not made inadmissible when “ ‘the writing is
    lost or has been destroyed without fraudulent intent on the part of the proponent of
    43      We also reject defendant’s contention that there may have been some
    relevant differences between the original note and the photographs because of
    content possibly lost within the folds of the paper. The prosecution presented
    large, blown-up copies of the photograph of the note in which any creasing in the
    note can be readily examined. Any missing detail is not so severe as to render any
    significant portion of it hidden or illegible.
    129
    the evidence.’ ” (People v. Morris, 
    supra,
     53 Cal.3d at p. 205, italics omitted; see
    Guardianship of Levy (1955) 
    137 Cal.App.2d 237
    , 249-250 [admitting secondary
    evidence of a writing when the original was intentionally destroyed in good
    faith].) Defendant has failed to show fraudulent intent in the destruction of the
    original Love Insurance note. Consequently, the photographs were admissible
    even if they otherwise qualified for exclusion under the former version of the best
    evidence rule.
    2. Admission of Lay Opinion Evidence Concerning the Handwriting on
    the Love Insurance Note
    Defendant asserts several challenges to the admission of a lay opinion that
    the handwriting on the Love Insurance note looked like defendant’s handwriting.
    Specifically, Frank Clark, defendant’s long-time work colleague, testified that he
    believed defendant wrote the letters and numbers on the paper. In overruling
    defendant’s various objections to this evidence, the trial court found adequate
    foundation to allow Clark’s opinion on this subject because he had seen a number
    of numerals and letters written by defendant over the course of their working
    relationship. According to the trial court, that extensive exposure to defendant’s
    writing allowed Clark to provide an opinion “as to whether or not the writing on
    the Love Insurance note appears to be consistent with Mr. Lucas’s writing.”
    Defendant now challenges the admission of this testimony on three bases.
    First, he argues that Clark’s statement that defendant authored the note did not
    meet the requirements for lay opinion testimony. Second, he contends that the
    prosecution failed to establish, as a foundational matter, that handwriting is
    sufficiently unique to enable identification of a particular person’s writing.
    Finally, he states that Clark’s opinion about the note should have been excluded
    under Evidence Code section 352. Defendant’s contentions fail.
    130
    Opinion evidence given by a lay witness is admissible “as is permitted by
    law,” including, but not limited to, an opinion that is: “(a) [r]ationally based on
    the perception of the witness; and [¶] (b) [h]elpful to a clear understanding of his
    [or her] testimony.” (Evid. Code, § 800.) The California Law Revision
    Commission’s comment to Evidence Code section 800 clarifies that it “does not
    make inadmissible an opinion that is admissible under existing law,” even if that
    opinion does not meet the two factors in section 800. (Cal. Law Revision Com.
    com., reprinted at 29B pt. 3A West’s Ann. Evid. Code (2009 ed.) foll. § 800, p. 3.)
    In other words, Evidence Code section 800 does not render a lay opinion
    inadmissible that would have otherwise been admissible under another section.
    Evidence Code section 1416 provides a specific statutory basis under which
    a lay opinion is admissible regarding handwriting. Under section 1416, a lay
    witness may state his or her opinion concerning whether a document reflects the
    handwriting of a particular person if the court finds that he or she has “personal
    knowledge of the handwriting of the supposed writer.”44 If Clark’s opinion
    44      Evidence Code section 1416 provides in full: “A witness who is not
    otherwise qualified to testify as an expert may state his opinion whether a writing
    is in the handwriting of a supposed writer if the court finds that he has personal
    knowledge of the handwriting of the supposed writer. Such personal knowledge
    may be acquired from: [¶] (a) Having seen the supposed writer write; [¶] (b)
    Having seen a writing purporting to be in the handwriting of the supposed writer
    and upon which the supposed writer has acted or been charged; [¶] (c) Having
    received letters in the due course of mail purporting to be from the supposed writer
    in response to letters duly addressed and mailed by him to the supposed writer; or
    [¶] (d) Any other means of obtaining personal knowledge of the handwriting of
    the supposed writer.”
    This kind of opinion testimony was already permitted under Code of Civil
    Procedure former section 1943 when the Evidence Code was enacted in 1965.
    (Stats. 1901, ch. 102, § 481, p. 247, repealed by Stats. 1965, ch. 299, § 100,
    p. 1362, on enactment of the Evid. Code.)
    131
    testimony properly qualified under section 1416, it need not be analyzed under
    section 800.
    Clark’s opinion did qualify under Evidence Code section 1416. He had
    sufficient personal knowledge of defendant’s writing, having known and worked
    with defendant for several years. In that capacity, he saw various documents
    containing letters and numerals written by defendant, including a number of
    documents that he identified in court. The court reasonably held that this gave
    Clark sufficient personal knowledge to opine about whether defendant authored
    the note.
    Defendant advances several unpersuasive arguments to the contrary. He
    asserts that Evidence Code section 1416 should not apply to the handwriting on
    the Love Insurance note because the note contains “handprinting” rather than
    “handwriting.” He quotes the comment to Evidence Code section 1418, the statute
    providing for the admissibility of expert testimony about handwriting, stating that
    it applies “to any form of writing, not just handwriting.” (Cal. Law Revision Com.
    com., reprinted at 29B pt. 4 West’s Ann. Evid. Code (1995 ed.) foll. § 1418, at
    p. 469.) He reasons that because “writing” means something beyond
    “handwriting” in section 1418, section 1416 must be intended to apply to cursive
    handwriting only. We disagree.
    First, the comment quoted by defendant is intended to clarify that expert
    witnesses may provide opinions comparing typewriting under that section. (Cal.
    Law Revision Com. com., reprinted at 29B pt. 4 West’s Ann. Evid. Code, supra,
    foll. § 1418 at p. 469 [explaining that the section “applies to any form of writing,
    not just handwriting” because “experts can now compare typewriting
    specimens”].) Second, defendant points to no court or other authority that has
    applied different standards to cursive and printed letters. (See Evid. Code, § 250
    [making no distinction between printing and cursive styles in definition of a
    132
    “writing”]; Black’s Law Dict. (9th ed. 2009) p. 783, col. 1 [defining handwriting
    as “the cast or form of writing peculiar to a person, including the size, shape, and
    style of letters, and whatever gives individuality to one’s writing” and
    “[something] written by hand” and making no distinction between cursive writing
    and printing].) Moreover, the extent to which a distinction between cursive
    handwriting and handprinting might affect the relevance of an opinion concerning
    authorship can properly be elicited through cross-examination. Defendant’s
    further contention that the opinion here was not “helpful” under Evidence Code
    section 800 seems dubious, but in any event, as noted above it was admissible
    under another existing law, Evidence Code section 1416.
    Defendant also challenges the foundation of Clark’s opinion testimony.
    First, he argues that the prosecution was required to establish that a unique
    identification could be made based on the small sample of letters and numerals
    present in the Love Insurance note. Evidence Code section 1416 imposes no such
    restriction. Second, defendant asserts that the prosecution failed to make a
    foundational showing that Clark could specifically make this identification for the
    following reasons: Clark had never seen defendant write the exact content of the
    note; the content of the note was limited; Clark did not compare exemplars; and
    Clark’s comparison was not based on defendant’s contemporaneous writings. As
    stated above, the court did not abuse its discretion by finding an adequate
    foundation for Clark’s opinion regarding the authorship of the writing under
    Evidence Code section 1416. All of the factors that defendant mentions could be
    explored on cross-examination and considered by the jury in weighing the
    evidence, but they do not go to the opinion’s admissibility.
    Defendant insists that the court, nevertheless, committed prejudicial error
    by not providing a requested jury instruction requiring the jury to determine, as a
    foundational matter, whether the handwriting on the note was sufficiently unique.
    133
    Contrary to defendant’s claim, this jury instruction was not required under
    Evidence Code section 403, because Clark’s qualification to state his opinion
    under 1416 was a determination for the judge, not the jury. (Legis. Com. com.,
    29B pt. 1B West’s Ann. Evid. Code (2011 ed.) foll. § 403 at p. 20 [the
    qualifications of a lay witness to give an opinion under Evid. Code, § 1416 is
    decided by the judge under Evid. Code, § 405]; Legis. Com. com., reprinted at
    29B pt. 1B West’s Ann. Evid. Code, supra, foll. § 405 at p. 42 [a “witness’
    qualifications to express such an opinion [under Evid. Code, § 1416] . . . are to be
    determined by the judge under Section 405 just as the qualifications of other
    experts are decided by the judge”].) The trial court rightly rejected this erroneous
    instruction on the required foundational showing.
    Alternatively, defendant contends the trial court should have excluded
    Clark’s testimony under Evidence Code section 352 because its probative value
    was substantially outweighed by the danger of undue prejudice. As we have
    already noted, an Evidence Code section 352 determination is reviewed by
    applying an abuse of discretion standard. (People v. Mills (2010) 
    48 Cal.4th 158
    ,
    195.) For purposes of a section 352 analysis, evidence is unduly prejudicial if it
    tends to create an emotional bias against a defendant that could inflame the jury,
    while also having a negligible bearing on the issues. (People v. Mendoza (2011)
    
    52 Cal.4th 1056
    , 1091-1092.) The authorship of the handwriting on the Love
    Insurance note was far from a negligible issue. It was a crucial element of the
    case. Clark had personal experience with defendant’s handwriting and was
    qualified, under Evidence Code section 1416, to express his opinion that the note
    was consistent with that handwriting. His testimony assisted the jury in
    determining whether defendant wrote the note, and this in turn was directly
    relevant to the jury’s determination whether defendant was present at the Jacobs
    crime scene. Nor did Clark’s opinion tend to create any emotional bias against
    134
    defendant. There was no abuse of discretion in admitting Clark’s testimony on
    this basis.
    3. Exclusion of Lay Opinion Evidence Concerning the Love Insurance
    Note
    David Ray Woods was briefly considered a suspect in the Jacobs murders.
    (See ante, fn. 12, p. 17.) The trial court excluded a statement by Rochelle
    Coleman, Woods’s girlfriend, in which she stated her belief that Woods authored
    the Love Insurance note. During a police interview, Coleman was shown a
    photograph of the Love Insurance note and asked if she recognized the
    handwriting on the note. She stated, “that’s David’s handwriting.” Coleman died
    prior to trial. Defendant sought admission of the statement for its truth under the
    spontaneous utterance exception to the hearsay rule. He also sought to admit the
    statement for a variety of nonhearsay purposes. The court rejected these theories
    and excluded the statement.
    Defendant raises several related claims. He first challenges the exclusion
    of this statement by claiming that it should have been allowed under the
    spontaneous statement exception to the hearsay rule. He next contends the
    statement could also have been admissible for the nonhearsay purpose of
    undermining the expert handwriting evidence presented by the prosecution.
    Finally, he posits that even if the statement were not otherwise admissible, its
    exclusion precluded his right to present a defense. We hold that none of these
    claims discloses an abuse of discretion in the trial court’s decision to exclude
    Coleman’s statement.
    As previously described, evidence of a statement is not made inadmissible
    by the hearsay rule if the statement “(a) Purports to narrate, describe, or explain an
    act, condition, or event perceived by the declarant; and [¶] (b) Was made
    spontaneously while the declarant was under the stress of excitement caused by
    135
    such perception.” (Evid. Code, § 1240.) To apply the exception the trial court
    must determine that “ ‘(1) there must be some occurrence startling enough to
    produce this nervous excitement and render the utterance spontaneous and
    unreflecting; (2) the utterance must have been before there has been time to
    contrive and misrepresent, i.e., while the nervous excitement may be supposed still
    to dominate and the reflective powers to be yet in abeyance; and (3) the utterance
    must relate to the circumstance of the occurrence preceding it.’ ” (People v. Poggi
    (1988) 
    45 Cal.3d 306
    , 318, quoting Showalter v. Western Pacific R. R. Co. (1940)
    
    16 Cal.2d 460
    , 468.) This rule mirrors a common law exception based upon the
    notion that such statements, although not necessarily more reliable or accurate, are
    more likely to represent “ ‘the unreflecting and sincere expression of one’s actual
    impressions and belief.’ ” (Showalter v. Western Pacific R. R. Co., supra, at
    p. 468.) Consequently, the mental state of the declarant — that is, the question of
    whether he or she was sufficiently under stress so as to dramatically reduce the
    possibility of deliberation and prevarication — is crucial to determining whether
    the exception applies. A trial court’s decision to exclude a statement as not
    qualifying as a spontaneous utterance can be reversed only if it amounted to an
    abuse of the court’s discretion. (People v. Gallegos (1990) 
    52 Cal.3d 115
    , 175.)
    The trial court did not abuse its discretion. The court heard testimony from
    a police officer, Lieutenant Dolores Messick, who was present at the interview,
    and then the court heard a tape-recording of the interview. In rendering its
    decision to exclude the statement, the court noted that “[Coleman’s] voice was
    very calm, cool, and modulated throughout” the recording. This tone did not
    change when she was presented with the photograph. Indeed, Messick also
    testified that Coleman was calm throughout the interview and did not show any
    emotion or change in demeanor when presented with the photograph. It was
    appropriate for the trial court to consider the level of stress or excitement evident
    136
    in Coleman’s voice and through her demeanor. (See People v. Brown (2003) 
    31 Cal.4th 518
    , 541 [trial court properly considered that the declarant was “crying,
    shaking, and visibly upset” when allowing his statement as a spontaneous
    utterance].) Because all of the evidence presented at trial suggests that Coleman
    seemed calm and reflective when giving her statement, we conclude that the trial
    court did not abuse its discretion in rejecting its admission as a spontaneous
    utterance.
    Nor did the trial court abuse its discretion in concluding that Coleman’s
    statement was inadmissible to undermine or impeach the prosecution’s expert
    testimony about handwriting comparison. Defendant argues that the statement
    should have been admitted as nonhearsay evidence that the handwriting on the
    note was not unique and to impeach the prosecution’s expert witness by showing
    improper bias. But to provide any such relevancy, one would have to accept as
    truthful that Coleman actually believed that the handwriting matched David
    Woods’s handwriting. Therefore, it is difficult to understand how Coleman’s
    statements could constitute evidence of how the handwriting on the Love
    Insurance note was not unique without it also being offered to prove the truth of
    Coleman’s belief.
    Finally, the exclusion of Coleman’s statement did not preclude defendant’s
    constitutional right to present a defense or his constitutional rights to due process,
    and trial by jury, nor did it violate any principle requiring heightened reliability in
    capital cases. “ ‘As a general matter, the ordinary rules of evidence do not
    impermissibly infringe on the accused’s right to present a defense.’ ” (People v.
    Blacksher (2011) 
    52 Cal.4th 769
    , 821, quoting People v. Hall (1986) 
    41 Cal.3d 826
    , 834.) Citing no authority, defendant fails to convince us that the application
    of these evidentiary rules, designed to exclude unreliable evidence, prejudiced the
    ability to defend his case or affected his constitutional rights.
    137
    4. Restriction on the Cross-examination of John Massingale
    Defendant contends the trial court violated his statutory and constitutional
    rights to confront John Massingale by improperly restricting defense counsel’s
    cross-examination of him regarding a federal civil suit Massingale had filed
    against San Diego authorities, claiming he had been wrongfully arrested and held
    for the Jacobs murders. Defendant argues that Massingale had a strong financial
    interest in testifying against defendant, and the trial court’s ruling unfairly
    precluded defense counsel from using this impeachment evidence. We agree that
    the court erred, but disagree concerning the effect of this error.
    “ ‘[A] criminal defendant states a violation of the Confrontation Clause by
    showing that he was prohibited from engaging in otherwise appropriate cross-
    examination designed to show a prototypical form of bias on the part of the
    witness, and thereby, “to expose to the jury the facts from which jurors . . . could
    appropriately draw inferences relating to the reliability of the witness.” ’
    [Citation.] However, not every restriction on a defendant’s desired method of
    cross-examination is a constitutional violation. Within the confines of the
    confrontation clause, the trial court retains wide latitude in restricting cross-
    examination that is repetitive, prejudicial, confusing of the issues, or of marginal
    relevance. [Citations.] California law is in accord. [Citation.] Thus, unless the
    defendant can show that the prohibited cross-examination would have produced ‘a
    significantly different impression of [the witnesses’] credibility’ [citation], the
    trial court’s exercise of its discretion in this regard does not violate the Sixth
    Amendment.” (People v. Frye (1998) 
    18 Cal.4th 894
    , 946, disapproved on
    another ground in People v. Doolin (2009) 
    45 Cal.4th 390
    .)
    The trial court prevented defense counsel from introducing evidence that
    Massingale had a significant financial interest in helping to convict defendant. At
    the time of his testimony, Massingale was prosecuting a civil suit against San
    138
    Diego authorities claiming approximately $3 million in damages stemming from
    the circumstances surrounding his earlier arrest and prosecution. The court noted
    that Massingale already had obtained a finding of factual innocence pursuant to
    section 851.8 regarding the Jacobs murders. That finding, the court reasoned, was
    determinative of the civil action because “[o]nce the court has made that
    determination that he is innocent, then he goes before a civil action [as an]
    innocent [person].” Therefore, the court concluded, the outcome of defendant’s
    case would not affect Massingale’s civil action, and any threat of bias stemming
    from the civil trial to Massingale’s current testimony was nonexistent, because
    Massingale already had obtained the benefit that defendant purported that he was
    seeking to gain.
    The trial court’s ruling rests on the false assumption that Massingale’s
    finding of factual innocence could be admitted into evidence in his civil trial.
    Section 851.8, subdivision (i)(1), states: “Any finding that an arrestee is factually
    innocent . . . shall not be admissible as evidence in any action.” Contrary to the
    trial court’s ruling, Massingale had not yet obtained the benefit he was purportedly
    seeking, and consequently, he may have retained a strong incentive to testify
    against defendant, because defendant’s conviction would likely carry a great deal
    of weight with Massingale’s civil jury.
    We previously have noted that there may be no stronger witness bias than
    “a financial interest in the outcome of the litigation contingent upon its terminating
    favorably for the party for whom [the witness] testified.” (Staley v. State Bar
    (1941) 
    17 Cal.2d 119
    , 143.) Because the trial court erred in concluding that his
    section 851.8 determination had preclusive effect in his civil action, Massingale’s
    litigation of his civil suit was relevant to his alleged bias in that he had a financial
    interest in facilitating defendant’s conviction.
    139
    Nevertheless, the trial court’s erroneous ruling did not rise to the level of
    constitutional error. As previously stated, in order to prove that the error was in
    violation of the Sixth Amendment’s confrontation clause, defendant must
    demonstrate that the prohibited cross-examination would have produced “a
    significantly different impression of [the witness’s] credibility.” (Delaware v. Van
    Arsdall, supra, 475 U.S. at p. 680.) The jurors here already knew that Massingale
    (1) had been arrested for the Jacobs murders, (2) had been held in custody for
    several years, and (3) had confessed in detail to the Jacobs homicides. The jurors
    witnessed a very detailed cross-examination and recross-examination of
    Massingale that spanned approximately 118 transcript pages. His claims of false
    and coerced confessions, which were central issues in his civil trial, were disputed
    in this trial by a number of defense witnesses, including the law enforcement
    officers who heard the confessions. Finally, and most importantly, jurors were
    fully aware that Massingale had a significant incentive, albeit not necessarily
    financial, to testify against defendant — an interest in avoiding prosecution and
    the death penalty. Given the jurors’ knowledge that Massingale already was
    actively trying to avoid prosecution for two murders and a potential sentence of
    death, evidence of his financial interest in defendant’s conviction would not have
    produced a “significantly different impression” of Massingale’s credibility.
    Therefore, the trial court’s erroneous ruling did not have the effect of violating
    defendant’s rights under the Sixth Amendment. (People v. Frye, supra, 18 Cal.4th
    at p. 947.)
    5. Untimely Disclosure of Impeachment Evidence
    Defendant contends the prosecution failed to timely disclose impeachment
    evidence favorable to him in violation of the due process clause of both the state
    and federal Constitutions. The evidence at issue was: (1) a police report
    140
    describing an incident in which prosecution witness John Massingale struck his
    wife; and (2) four crime scene photographs shown to Massingale during his
    interrogation by Detectives Ayers and Green. Although the evidence had
    impeachment value, we conclude that any erroneous untimely disclosure did not
    prejudice defendant.
    a) The Police Report
    During defendant’s cross-examination of John Massingale at trial,
    Massingale admitted that he sometimes had a bad temper, but denied that he
    would ever hit a woman. Approximately two days after his testimony, the
    prosecution provided the defense with a police report indicating that Massingale
    had struck his wife and another woman at a party in late December 1989. Using
    this report, defense investigators located three witnesses concerning this incident,
    and defendant subsequently presented these witnesses during his case-in-chief.
    Approximately five months after receiving the police report, defendant filed
    a motion alleging a discovery violation. During the hearing on that motion, it was
    revealed that sometime during or immediately after Massingale’s cross-
    examination, the prosecution first received the police report from a deputy city
    attorney who was handling aspects of Massingale’s civil suit. The prosecution
    stated that, upon receiving the report, it was immediately turned over to the
    defense. The trial court found no misconduct on the part of the prosecution and no
    prejudice to defendant.
    In Brady v. Maryland (1963) 
    373 U.S. 83
     (Brady), the United States
    Supreme Court held that “the suppression by the prosecution of evidence
    favorable to an accused upon request violates due process where the evidence is
    material either to guilt or to punishment, irrespective of the good faith or bad faith
    of the prosecution.” (Id. at p. 87.) Moreover, “[t]he high court has since held that
    141
    the duty to disclose such evidence exists even though there has been no request by
    the accused [citation], that the duty encompasses impeachment evidence as well as
    exculpatory evidence [citation], and that the duty extends even to evidence known
    only to police investigators and not to the prosecutor [citation].” (People v.
    Salazar (2005) 
    35 Cal.4th 1031
    , 1042.)
    Thus, a true Brady violation occurs only when three conditions are met:
    “The evidence at issue must be favorable to the accused, either because it is
    exculpatory, or because it is impeaching; that evidence must have been suppressed
    by the State, either willfully or inadvertently; and prejudice must have ensued.”
    (Strickler v. Greene (1999) 
    527 U.S. 263
    , 281-282.) Under this standard prejudice
    focuses on “the materiality of the evidence to the issue of guilt or innocence.”
    (United States v. Agurs, 
    supra,
     427 U.S. at p. 112, fn. 20.) In the case of
    impeachment evidence, materiality requires more than a showing that “using the
    suppressed evidence to discredit a witness’s testimony ‘might have changed the
    outcome of the trial.’ [Citation.]” (People v. Salazar, 
    supra,
     35 Cal.4th at
    p. 1043, italics added.) Rather, the evidence will be held to be material “only if
    there is a reasonable probability that, had the evidence been disclosed to the
    defense, the result of the proceeding would have been different.” (United States v.
    Bagley (1985) 
    473 U.S. 667
    , 682.)
    With respect to the first prong in the Brady analysis, it is evident that the
    police report was favorable impeachment evidence for the accused.
    The record, however, does not support the assertion that the police report
    was suppressed by the prosecution. It is true that the San Diego Police
    Department forms part of the “prosecution team,” and therefore, the prosecution
    had constructive possession of the report. Even so, the prosecution’s eventual
    disclosure upon gaining actual possession cured any Brady violation. “[E]vidence
    that is presented at trial is not considered suppressed, regardless of whether or not
    142
    it had previously been disclosed during discovery.” (People v. Morrison (2004)
    
    34 Cal.4th 698
    , 715.) Therefore, we find that the second prong of the Brady
    analysis is unsatisfied.
    Defendant nevertheless argues the occurrence of a Brady violation because
    the late disclosure meant that defense counsel was unable to catch Massingale in a
    lie during his cross-examination. But defendant fails to explain how any delay in
    the disclosure of this police report resulted in prejudice. (See People v. Carter,
    
    supra,
     36 Cal.4th at p. 1161; People v. Cook (2006) 
    39 Cal.4th 566
    , 590.) To the
    contrary, after having received the police report from the prosecution, defense
    counsel located and called three witnesses, including a police officer, to provide
    testimony regarding the evening on which Massingale struck two women. The
    trial court determined that the three witnesses “thoroughly impeached and
    discredited” Massingale’s testimony. Defense counsel further retained the ability
    to recall or subpoena Massingale and impeach him directly with the report. That
    counsel failed to do so suggests a tactical assessment on the part of defense
    counsel that they had sufficiently impeached Massingale. We find that defendant
    was able to make effective use of the police report at trial, and therefore, there was
    no prejudice stemming from its allegedly untimely disclosure.
    b) The Four Photographs
    Defendant contends that the prosecution failed to timely disclose the four
    photographs used by Detectives Ayers and Inspector Green during their initial
    interrogation of John Massingale. The photographs, which were first introduced
    during the prosecution’s cross-examination of Detective Ayers, were unavailable
    for defendant’s earlier cross-examination of Massingale. The record indicates that
    both the defense and the prosecution knew of the existence of the photographs
    throughout the course of the trial, though at the time of their introduction, only the
    143
    prosecution knew their exact location. Defendant argues that Massingale’s cross-
    examination is the “only time” the evidence could have been used to attack his
    credibility, and the prosecution’s failure to timely disclose the photographs
    violated his rights to due process. We disagree.
    Defendant again fails to explain how any delay in the disclosure of these
    photographs resulted in prejudice. Defendant argues his intended use of the
    evidence was to review the photographs with Massingale during cross-
    examination in order to impeach his testimony that he confessed key details of the
    Jacobs murders only after seeing them in crime scene photos. Because defendant
    had the ability to re-call or subpoena Massingale after the introduction of the
    photographs, we fail to see how the stated purpose was frustrated, even minimally.
    At the time of disclosure, the evidence could still be put to effective use by the
    defense, and we find no Brady violation on the part of the prosecution.
    Furthermore, even were we to find untimely disclosure or actual
    suppression of the photographs, we would nevertheless conclude that there was no
    Brady violation because the photographs were immaterial. (United States v.
    Agurs, 
    supra,
     427 U.S. at p. 112.) Presumably, defense counsel sought to use the
    photographs to impeach Massingale by demonstrating that he could not have
    obtained all the confessed details of the Jacobs murders by only viewing those
    four photographs. Massingale himself stated, however, that he was shown
    numerous crime scene photographs by Detective Pace when Detectives Ayers and
    Green had stepped out of the interrogation room. Therefore, the four photographs
    would not have impeached Massingale, and thus, we cannot find it reasonably
    probable that a more favorable outcome would have resulted from their
    introduction.
    144
    Because we find no prejudice arising from these alleged discovery
    violations, we further reject defendant’s claim that the asserted errors were
    cumulatively prejudicial.
    6. Exclusion of Expert Testimony Concerning Eyewitness
    Identification
    Defendant contends the trial court abused its discretion by excluding the
    testimony of his proffered experts on eyewitness identification. Defendant argues
    that the exclusion of this evidence caused the jury to make false assumptions
    concerning the reliability and strength of Robertson’s identification of defendant
    as her attacker. He claims the error violated his state and federal constitutional
    rights to present a defense, confrontation, due process, and his Eighth Amendment
    right to verdict reliability. The trial court did not abuse its discretion.
    During pretrial proceedings, the trial court heard the testimony of proposed
    defense expert Dr. Robert Buckout. Dr. Buckout testified that stress and the
    presence of a weapon are factors that reduce the accuracy of an eyewitness’s
    identification. He also explained that an eyewitness’s confidence in the
    correctness of his or her identification does not necessarily correlate with the
    accuracy of that identification. The court excluded Dr. Buckout’s testimony,
    concluding that McDonald, supra, 
    37 Cal.3d 351
    , requires the admission of expert
    testimony on eyewitness identification only if there is no other evidence that
    substantially corroborates the identification and gives it independent reliability.
    The court explained that Robertson’s identification of defendant was corroborated
    by the other charged crimes and her testimony describing defendant’s home and
    his vehicle.
    At trial, the defense again raised the issue and proffered another defense
    witness, Dr. Elizabeth Loftus, to testify about the reliability of eyewitness
    identification. After a brief hearing without the jury present, Dr. Loftus gave
    145
    testimony similar to what Dr. Buckout presented in the pretrial hearings. After
    screening this testimony, the court concluded that Dr. Loftus’s testimony was
    inadmissible because factors affecting eyewitness identification were a matter of
    common knowledge; Dr. Loftus had no reliable basis for her opinions, which were
    based on simulations and not actual crime victims; and the testimony raised the
    prospect of a “battle of experts” — a battle that the jury would be ill equipped to
    assess.
    In McDonald, we described the circumstances in which expert testimony
    may be useful concerning the reliability of eyewitness identification. We stated
    that “the decision to admit or exclude expert testimony on psychological factors
    affecting eyewitness identification remains primarily a matter within the trial
    court’s discretion; . . . ‘we do not intend to “open the gates” to a flood of expert
    evidence on the subject.’ [Citation.] We expect that such evidence will not often
    be needed, and in the usual case the appellate court will continue to defer to the
    trial court’s discretion in this matter. Yet deference is not abdication. When an
    eyewitness identification of the defendant is a key element of the prosecution’s
    case but is not substantially corroborated by evidence giving it independent
    reliability, . . . it will ordinarily be error to exclude that testimony.” (McDonald,
    supra, 37 Cal.3d at p. 377, fn. omitted.) More recently, we stated that the
    exclusion of expert testimony on eyewitness identification “is justified only if
    there is other evidence that substantially corroborates the eyewitness identification
    and gives it independent reliability.” (People v. Jones (2003) 
    30 Cal.4th 1084
    ,
    1112.)
    The trial court did not abuse its discretion in excluding the proposed expert
    testimony. As the court noted, Robertson’s identification of defendant’s house
    and the make and model of his car independently corroborated her identification of
    defendant. As we explained above (see ante, p. 94), her description and sketch of
    146
    the interior and exterior of defendant’s house were especially compelling. Under
    these circumstances, the corroborative effect of this evidence was sufficient to
    give independent reliability to her identification of defendant in the photo lineup
    and later in court. No expert testimony on the subject of eyewitness identification
    was required.
    7. Issues Concerning Robertson’s Memory
    Defendant claims the trial court erred by refusing to allow his defense
    experts to testify about the reliability of Robertson’s memory. He also argues that
    the defense was improperly precluded from explaining why its expert had not
    tested or evaluated Robertson. He contends these errors violated his state and
    federal rights to present a defense, due process, compulsory process,
    confrontation, effective representation of counsel, and his Eighth Amendment
    right to verdict reliability. We disagree.
    In pretrial hearings, the trial court denied defendant’s motion to subject
    Robertson to psychological testing.45 Later at trial, Dr. Wendy Freed, a
    psychiatrist who treated Robertson, testified that she believed Robertson’s
    memory was intact until the point she was choked to unconsciousness. Defendant
    45     Defendant also claims that the trial court erred in refusing to subject
    Robertson to defense neuropsychological testing, under Ballard v. Superior Court
    (1966) 
    64 Cal.2d 159
     (Ballard), to determine her competency to testify. But even
    assuming Robertson would have consented to such testing and the court was
    mistaken about this circumstance, defendant had no right to subject the victim to
    such an examination. In 1980, the Legislature enacted section 1112, which
    overruled Ballard and abolished any discretion a trial court had to order a sex
    crime victim to submit to defense psychological testing. (People v. Haskett (1982)
    
    30 Cal.3d 841
    .) Moreover, whether or not the subject was the victim of a sex
    crime, “[t]he use of psychiatric testimony to impeach a witness is generally
    disfavored.” (People v. Marshall (1996) 
    13 Cal.4th 799
    , 835.)
    147
    objected, and the court agreed and struck that testimony. Later, in a conference
    with only the parties present, the court expressed concern about getting into a
    “battle of experts” concerning Robertson’s memory. The court asked the parties
    whether they intended to present witnesses concerning Robertson’s memory and
    stated that either “[b]oth sides do it or neither side does it.” Defense counsel
    informed the court that they planned to call an expert on posttraumatic stress
    disorder to educate the jurors about that condition and its effect on memory.
    Defense counsel made clear that, because the court had denied the defense motion
    to subject Robertson to psychological testing, he believed the expert had no basis
    to give an opinion about whether Robertson suffered from memory problems. The
    defense expert, Dr. Sheldon Zigelbaum, then testified in front of the jury
    concerning the effects of posttraumatic stress disorder on memory.
    Ultimately, defendant offered no testimony regarding whether Robertson’s
    memory was reliable or why the defense expert did not examine her, and the trial
    court made no specific ruling precluding defendant from presenting such evidence.
    Indeed, the court made clear that such evidence could be offered if “[b]oth sides
    do it.” More important, defense counsel explained on the record their reasons for
    not having their expert speculate about whether Robertson did in fact have
    memory problems. Instead of having the expert engage in speculation, defense
    counsel chose instead to have the expert testify about the effects of a medical
    condition that Robertson indisputably suffered — posttraumatic stress disorder.
    On appeal, we do not second-guess trial counsel’s reasonable tactical decisions.
    (People v. Riel, supra, 22 Cal.4th at p. 1185.)
    8. Evidence Concerning the Composition of the Photo Lineup
    Defendant contends the trial court committed prejudicial error by excluding
    evidence that other less suggestive photographs of defendant were available for
    148
    use in the photo lineup. He also argues that the court erred by precluding
    questioning of Robertson about whether the other photographs in the photo lineup
    matched her description of her attacker. Defendant asserts that the court’s
    decision to exclude this evidence as irrelevant under Evidence Code section 352
    precluded him from showing that the detectives intentionally created a suggestive
    lineup and that Robertson’s identification of defendant was unreliable. He claims
    these rulings violated defendant’s state and federal constitutional rights to present
    a defense, due process, confrontation and compulsory process, and his Eighth
    Amendment right to a reliable verdict. The trial court did not err in either ruling.
    During trial, defendant sought to introduce photographs of him taken by
    one of the sheriff’s deputies who arrested him. He argued that these photographs
    were relevant to show that the photograph ultimately used in Robertson’s photo
    lineup was suggestive by comparison. Defendant also argued that these other
    photographs were relevant to show that the photo lineup was designed to be
    suggestive.46 The trial court excluded the evidence on the grounds of irrelevance
    under Evidence Code section 352. The court emphasized that the relevant issue
    before the jury was whether the photographs actually used in the lineup were
    suggestive and if so how that impacted the credibility of Robertson’s identification
    of defendant. In excluding the proposed evidence, the court refused to allow the
    defense to put Detective Fullmer “on trial separately when it [didn’t] affect that
    lineup as far as [Robertson] is concerned.” The court explained that whether the
    detectives could have used better or less suggestive photos had no bearing on the
    46     The Attorney General argues that defendant did not raise this particular
    issue before the trial court and, therefore, forfeited this claim on appeal. But
    because it appears from the record that defendant articulated this theory, we
    conclude that he did not forfeit this issue on appeal.
    149
    suggestiveness of the photos used in the final photo lineup. It concluded that the
    lineup’s suggestiveness could be evaluated objectively by the jury, independent of
    considerations about the availability of other photos or the detectives’ motivations.
    “ ‘Although completely excluding evidence of an accused’s defense
    theoretically could rise to [the level of a constitutional violation], excluding
    defense evidence on a minor or subsidiary point does not impair an accused’s due
    process right to present a defense.’ ” (People v. Boyette, 
    supra,
     29 Cal.4th at
    p. 428.) The trial court correctly applied this precept concerning the availability of
    other photos of defendant.
    Concerning Robertson’s opinion about the other persons in the photo
    lineup, the trial court sustained the prosecution’s objection when the defense
    attempted to ask Robertson whether one of the other persons in the lineup
    resembled the description she had given to law enforcement after her attack. The
    court explained that the answer was irrelevant because the jurors could themselves
    compare Robertson’s previous descriptions with any particular photo in the lineup.
    Yet, the court further explained, defendant could ask Robertson why she had
    excluded the other photos and why she picked defendant’s photo.
    Given that the trial court fully allowed defendant to ask Robertson why she
    had excluded five other photos and selected defendant’s photo, the court’s
    limitation of cross-examination was “ ‘on a minor or subsidiary point’ ” and did
    not impair defendant’s rights. (People v. Boyette, 
    supra,
     29 Cal.4th at p. 428.)
    9. Evidence of Third Party Culpability in the Swanke Case
    Defendant contends the trial court prejudicially erred and violated his state
    and federal constitutional rights to due process and to present a defense by
    excluding evidence of third party culpability in the killing of Anne Swanke. This
    contention fails.
    150
    During trial, defense counsel sought to ask Swanke’s father about an ex-
    boyfriend and crank phone calls Anne Swanke had been receiving before her
    disappearance. The defense made an offer of proof concerning the ex-boyfriend.
    According to the defense, the former boyfriend had made repeated attempts to
    contact Swanke, and that made her afraid of him. In the morning after her
    disappearance, the ex-boyfriend visited the Swanke household wearing dark
    sunglasses, and he appeared nervous and fidgety. The ex-boyfriend returned to the
    household later that evening, and his demeanor was unusual as he refused to look
    anyone in the eye. In addition, before her disappearance, Anne Swanke had
    complained of receiving phone calls from unknown females in which caller would
    laugh and then hang up. The trial court ruled that the evidence did not make the
    former boyfriend a third party suspect and was, therefore, irrelevant, misleading
    and confusing.
    The trial court was correct. In People v. Hall, supra, 
    41 Cal.3d 826
    , 833,
    we explained the applicable standard to determine the admissibility of third party
    culpability evidence: “To be admissible, the third-party evidence need not show
    ‘substantial proof of a probability’ that the third person committed the act; it need
    only be capable of raising a reasonable doubt of defendant’s guilt. At the same
    time, we do not require that any evidence, however remote, must be admitted to
    show a third party’s possible culpability. As this court observed in [People v.]
    Mendez [(1924) 
    193 Cal. 39
    , 51], evidence of mere motive or opportunity to
    commit the crime in another person, without more, will not suffice to raise a
    reasonable doubt about a defendant’s guilt: there must be direct or circumstantial
    evidence linking the third person to the actual perpetration of the crime.”
    Here, the connection between the former boyfriend and the victim’s
    abduction and killing was speculative with no evidence, either direct or
    circumstantial, in support. Anne Swanke’s alleged fear of her ex-boyfriend and
    151
    his attempts to contact her were based on her statements, which are hearsay. Even
    assuming the offer of proof suggested that the former boyfriend had a motive to
    hurt Swanke, there was nothing about his conduct that tended to raise a reasonable
    doubt about defendant’s guilt and nothing that connected the former boyfriend to
    her disappearance. Defendant’s offer of proof also failed to connect the harassing
    phone calls to any conduct by the ex-boyfriend. Under these circumstances, the
    trial court properly excluded the proffered evidence under Evidence Code section
    352.
    B. Jury Instructions — Asserted Errors47
    1. Preliminary Instructions
    Defendant contends the trial court erred and violated his state and federal
    constitutional rights to due process and a fair trial because the preliminary jury
    instructions at the start of trial allegedly did not properly describe the jury’s duty,
    and failed to include instruction on the presumption of innocence and the
    prosecution’s burden of proof. He asserts that these alleged errors influenced the
    jury in favor of the prosecution. We disagree.
    Defendant claims the trial court misstated the jury’s duty in ascertaining the
    facts of the case by preinstructing the jury that: “you will, in essence, be judges
    because you will be the judges of the facts and I will be the judge of the law. And
    47      Defendant raises numerous claims of instructional error for both the guilt
    and penalty phases. For many of these claims, defendant argues certain
    instructions required further amplification or clarification. If defendant did not
    seek such amplification or clarification at trial, we conclude that the claim is
    forfeited. (People v. Moon, 
    supra,
     
    37 Cal.4th 1
    , 29 [the “failure to seek
    ‘amplification or explanation’ of the instruction precludes relief on appeal”].) For
    those claims of instructional error that challenge a given instruction more
    generally or as a whole, we review his claim of error “to the extent his substantial
    rights were affected.” (People v. Rundle (2008) 
    43 Cal.4th 76
    , 151, citing § 1259.)
    152
    at the conclusion of this case I will instruct you as to the law that is to be applied
    in this case.” Defendant claims that this instruction misstated the jurors’ duty by
    encouraging them to ascertain which version of the facts comports with the truth,
    instead of determining whether the prosecution had proved defendant’s guilt
    beyond a reasonable doubt. He also argues that the jury pamphlet given to
    prospective jurors further mischaracterized the jury’s duty by stating that its
    function was to “find, from the evidence and stipulations, what actually
    happened.”
    But nothing in the complained-of instruction nor in the juror pamphlet
    misleadingly described the role of the jury. To the contrary, “where the trial is by
    jury: [¶] (a) All questions of fact are to be decided by the jury. [¶] (b) Subject to
    the control of the court, the jury is to determine the effect and value of the
    evidence addressed to it, including the credibility of witnesses and hearsay
    declarants.” (Evid. Code, § 312.) The trial court’s preliminary instruction
    concerning the jury’s duty was proper.
    Regarding his claims concerning the trial court’s asserted failure to
    preinstruct the jury on the presumption of innocence and the prosecution’s burden
    of proof, defendant points to no binding authority requiring such preinstruction at
    the beginning of trial. By statute, a trial court must give the jury certain
    preinstructions involving “its basic functions, duties, and conduct,” and “[t]he
    instructions shall include, among other matters,” admonitions that the jurors shall
    not discuss the case, conduct their own research, read media reports about the
    case, investigate the locations involved, or receive any payment in exchange for
    information regarding the trial. (§ 1122, subd. (a).) Nothing in this statute
    specifically requires preinstruction concerning the presumption of innocence or
    the prosecution’s burden of proof. Furthermore, the statute that governs the order
    of trial proceedings, section 1093, allows the trial court to instruct the jury about
    153
    the applicable law after the conclusion of the evidence and closing arguments, but
    it also allows the court to give such instructions “[a]t the beginning of the trial or
    from time to time during the trial.” (§ 1093, subd. (f).) Nothing in section 1093
    requires the jury to be preinstructed regarding the presumption of innocence or the
    prosecution’s burden of proof. (See People v. Smith (2008) 
    168 Cal.App.4th 7
    ,
    15-16.)
    Therefore, there was no error in the court’s preinstructions to the jury.
    In any event, claims of instructional error are examined based on a review
    of the instructions as a whole in light of the entire record. (Estelle v. McGuire
    (1991) 
    502 U.S. 62
    , 72; People v. Castillo (1997) 
    16 Cal.4th 1009
    , 1016.)
    Throughout the jury selection process, the trial court informed the venire about the
    presumption of innocence and the state’s burden of proving defendant’s guilt
    beyond a reasonable doubt. Moreover, during voir dire the parties actively
    questioned prospective jurors about their ability to be guided by both. Under these
    circumstances, the jury had already been well aware of the presumption of
    innocence and the prosecution’s burden of proof at the start of trial.
    2. Cross-admissibility Instructions
    Defendant claims the trial court erred by refusing his request to clarify the
    instructions concerning other crimes evidence and that the alleged error allowed
    the jury to use the evidence of other crimes without first making a threshold
    finding concerning whether defendant had committed those other crimes. He also
    argues that the jury should have been instructed to find that defendant committed
    the other crimes beyond a reasonable doubt before it was allowed to utilize
    evidence of those other crimes. He contends the asserted errors violated his rights
    to a fair trial, due process, and to a reliable determination of penalty under the
    federal Constitution. We disagree.
    154
    We have recognized that “evidence of uncharged crimes is admissible to
    prove, among other things, the identity of the perpetrator of the charged crimes,
    the existence of a common design or plan, or the intent with which the perpetrator
    acted in the commission of the charged crimes.” (People v. Kipp (1998) 
    18 Cal.4th 349
    , 369.) “Evidence of uncharged crimes is admissible to prove identity,
    common design or plan, or intent only if the charged and uncharged crimes are
    sufficiently similar to support a rational inference of identity, common design or
    plan, or intent.” (Ibid., italics added.)
    In the present case, the trial court instructed the jury with a modified
    version of CALJIC No. 2.50.48 By this instruction, the court advised the jury that
    48     The full instruction read as follows:
    “Evidence has been introduced in this case of more than one count of homicide.
    As you have been instructed, each count charged must be decided separately.
    However, you may, if you so choose, use evidence from other counts together with
    any count under consideration for certain limited purposes.
    “Other counts evidence may be used by you, if you so choose, for the purpose of
    determining whether such evidence tends to show the identity of the person
    committing the crime charged in the count under consideration. You may also
    consider whether such evidence tends to negate the inference of identity of the
    person committing the crime charged.
    “You may consider whether or not the evidence as to other counts tends to show a
    characteristic method, plan, or scheme in the commission of criminal acts similar
    to any method, plan, or scheme used in the commission of the offense in the count
    then under consideration. Whether or not the evidence shows such a characteristic
    method, plan, or scheme is a matter solely for your determination.
    “If you should find a characteristic method, plan, or scheme, you may also
    consider whether or not such clear connection exists between the one offense
    under consideration and the other offense or offenses of which the defendant is
    accused, that it may be logically concluded that if the defendant committed the
    other offense or offenses, he also committed the crime under consideration.
    “You may also consider other counts evidence together with the count under
    consideration to determine whether there existed in the mind of the perpetrator an
    (Footnote continued on next page.)
    155
    it must decide each count of homicide separately, but that it may consider the
    other counts for the limited purposes of inferring whether: (1) “such evidence
    tends to show the identity of the person committing the crime charged in the count
    under consideration”; (2) such evidence shows “a characteristic method, plan, or
    scheme in the commission of criminal acts similar to any method, plan, or scheme
    used in the commission of the offense in the count then under consideration”; (3)
    “there existed in the mind of the perpetrator an intent which is a necessary element
    of the count under consideration or whether such intent may have been absent in
    some or all of the offenses charged”; and (4) “whether there existed any common
    motive for the crime or crimes charged or whether the evidence established
    different motives.”
    (Footnote continued from previous page.)
    intent which is a necessary element of the count under consideration or whether
    such intent may have been absent in some or all of the offenses charged.
    “You may also consider other counts evidence together under the count under
    consideration to determine whether there existed any common motive for the
    crime or crimes charged or whether the evidence established different motives.
    “Other counts evidence is a form of circumstantial evidence. Therefore, you must
    weigh such evidence in the same manner and subject to the same rules as I
    previously provided to you regarding circumstantial evidence. You must decide
    the weight, if any, to which other crimes evidence is entitled.
    “It is a matter solely for your determination as to whether or not any common
    scheme, plan, or method applies to some, all, or none of the counts. You may find
    that the other crimes evidence may apply to some of the offenses, but not to
    others.
    “You are cautioned that evidence of other counts cannot be used to prove that the
    defendant is a person of bad character or that he has a disposition to commit
    crimes.”
    156
    Most important, the court further explained that “[o]ther counts evidence is
    a form of circumstantial evidence” and that the jury “must weigh such evidence in
    the same manner and subject to the same rules as I previously provided to you
    regarding circumstantial evidence.” The court’s earlier instruction on
    circumstantial evidence explained that “each fact which is essential to complete a
    set of circumstances necessary to establish the defendant’s guilt must be proved
    beyond a reasonable doubt” and that “before an inference essential to establish
    guilt may be found to have been proven beyond a reasonable doubt, each fact or
    circumstance upon which such inference necessarily rests must be proved beyond
    a reasonable doubt.” (Italics added.) The court also gave the standard instruction
    defining reasonable doubt.
    Taking these instructions together, the jury was directed that any inferences
    generated by the circumstantial evidence of other crimes should be treated the
    same as circumstantial evidence concerning the count under consideration. Those
    inferences could be drawn in support of a finding of guilt only if the jury made the
    threshold finding that the facts or circumstances of the other crimes had been
    proved beyond a reasonable doubt. Indeed, this was the express understanding of
    the trial court in discussing the instructions with the parties.
    Consequently, defendant’s claims fail because the instructions did require
    the jury to determine whether the facts or circumstances of the other crimes had
    been proved beyond a reasonable doubt before it could use that evidence to
    convict defendant.
    3. Instructing the Jury to Make Various Preliminary Findings
    Defendant alleges the trial court erred by refusing various instructions that
    would have essentially directed the jury to make preliminary findings on various
    evidentiary issues. We disagree.
    157
    Defendant complains that the trial court improperly refused his requested
    instruction directing the jury to disregard expert opinion that was based on
    speculative or conjectural data. He also complains that the court improperly
    refused his proffered instruction requiring the jury, before considering opinion
    testimony based on a “comparative identification technique,” to find “that the
    items compared are reasonably comparable.” A court may refuse a proposed
    instruction if it is duplicative of other instructions. (People v. Sanders (1995) 
    11 Cal.4th 475
    , 560.) Here, the court instructed the jury with a modified version of
    CALJIC No. 2.80, which advised the jury that it is “not bound to accept an expert
    opinion as conclusive, but should give to it the weight to which you find it to be
    entitled” and that it “may disregard any such opinion, if you find it to be
    unreasonable.” The court also instructed the jury with a modified version of
    CALJIC No. 2.83, which cautioned the jury to “consider the qualifications and
    believability of the expert witnesses, as well as the reasons for each opinion and
    the facts and other matters upon which it is based.” Finally, the court further
    instructed the jury that opinion must be rationally based on perception. Together,
    these instructions sufficiently conveyed the concepts of defendant’s proposed
    instructions.
    Defendant claims the trial court erroneously rejected his requested
    instruction that would have allowed the jury to reject physical evidence, and any
    expert opinion associated with it, if the proponent of the physical evidence failed
    to establish that “it is reasonably certain that there was no break in the chain of
    custody, alteration or tampering.” Chain of custody is indeed a necessary showing
    for physical evidence to be admitted. But the trial court decides the admissibility
    of physical evidence based on challenges to the chain of custody, and, once
    admitted, any minor defects in the chain of custody go to its weight. (People v.
    158
    Diaz (1992) 
    3 Cal.4th 495
    , 559.) Thus, there was no error in refusing the
    instruction.
    Defendant finally claims the trial court improperly refused his proffered
    instruction advising the jury to reject any opinion testimony based on
    electrophoretic testing if no photograph depicted the diagnostic bands or if the
    photograph was inadequate to observe separate and distinct banding patterns. But,
    as explained, ante, at page 101, the failure to photograph the results of the
    electrophoretic testing did not render the expert’s opinion of the results
    inadmissible and any difficulty in interpreting photographed electrophoretic
    testing went to its weight not to its admissibility. (People v. Cooper, 
    supra,
     53
    Cal.3d at pp. 812-813.)
    4. Third Party Culpability Instructions
    Defendant alleges that the trial court erred in its jury instructions
    concerning evidence of third party culpability. He claims the errors deprived him
    of his state law right to present a defense and his federal constitutional rights to
    due process, trial by jury, confrontation, compulsory process, representation of
    counsel, and the reliability of his death verdict under the Eighth Amendment.
    There was no error.
    Defendant first argues that the trial court erred by refusing his modified
    version of CALJIC No. 2.03, which would have instructed the jury that
    Massingale’s false and misleading statements could be used as evidence of his
    consciousness of guilt.49 The court properly refused this instruction because it
    49     Part of the proposed instruction read as follows:
    “If you find that a suspect of a crime made a willfully false or deliberately
    misleading statement concerning the crime or crimes for which he was suspected,
    for the purpose of misleading or warding off suspicion, you may consider such
    (Footnote continued on next page.)
    159
    directed the jury to decide a third party’s guilt when, instead, the jury’s duty was
    to decide whether defendant’s guilt had been proved beyond a reasonable doubt.
    The jury did not need to ascertain Massingale’s guilt in the Jacobs homicides, but
    needed only to ascertain whether evidence of Massingale’s involvement in the
    homicides generated reasonable doubt as to defendant’s guilt — a point on which
    the jury was instructed just as the defense requested. Thus, the proposed version
    of CALJIC No. 2.03 was not relevant to the jury’s determination of defendant’s
    guilt.
    Defendant’s second complaint is aimed at the very instruction he requested
    — that evidence of a third party’s involvement in each of the killings could
    generate a reasonable doubt regarding defendant’s guilt for each homicide. He
    complains that the trial court’s instruction on this same point improperly assigned
    the burden to the defendant to prove that a third party’s possible involvement in
    the homicides raised a reasonable doubt concerning defendant’s guilt.
    Defense counsel submitted a proposed instruction on this issue, which read:
    “Evidence has been produced in this trial for the purpose of showing that a person
    other than the defendant committed the crime(s) charged. [¶] The burden is on
    the prosecution to prove beyond a reasonable doubt that it was the defendant and
    not another person who committed the charged offenses. [¶] If, after a
    consideration of all of the circumstances of the case you have a reasonable
    (Footnote continued from previous page.)
    statement as a circumstance tending to prove a consciousness of guilt. However,
    such conduct is not sufficient by itself to prove guilt, but may strengthen
    inferences of guilt arising from other facts.”
    The remainder of the proposed instruction emphasized that the weight of
    such false and misleading statements was for the jurors to decide and that such
    evidence was a form of circumstantial evidence.
    160
    doubt whether the defendant or some other person committed the crime(s)
    charged, you must give the defendant the benefit of that doubt and find him not
    guilty.”
    Over the defense’s clear objection, the trial court stated that it would not
    give the second sentence of the proposed instruction. The parties and the court
    then debated the precise language of the remaining portions of the proposed
    instruction. The court ultimately crafted the following instruction, which was
    partially patterned on the standard alibi instruction also given in this case, CALJIC
    4.50:
    “The defendant has presented evidence in this trial for the purpose of
    showing that a person or persons other than the defendant may have committed a
    crime or crime charged. [¶] If, after a consideration of the entire case, such third
    party evidence alone or together with other evidence raises a reasonable
    doubt whether the defendant committed a crime or crimes charged, you must give
    the defendant the benefit of that doubt and find him not guilty.”
    Defendant claims the wording of this instruction imposed a burden on the
    defense to raise a reasonable doubt regarding his guilt based on third party
    evidence because the instruction stated that the defense presented such evidence
    “for the purpose of showing” someone else committed the crime and that
    defendant was entitled to the benefit of any reasonable doubt “raise[d]” by such
    evidence. Defendant contends this language improperly imposed a burden of
    proof on him.
    But defendant did not object to this language. He suggested the “for the
    purpose of showing” language and did not object when the court added the word
    “raises.” Defendant argues that the trial court’s reaction to the second sentence of
    his proposed instruction showed that any further objection or proposed
    modifications would have been futile. (People v. Hill (1998) 
    17 Cal.4th 800
    , 820.)
    161
    However, the court entertained and granted the defense’s subsequent request to
    modify the proposed instruction by replacing “evidence being produced” with
    “evidence being presented” to achieve clarity and neutrality, according to defense
    counsel. Consequently, it does not appear that the court would have greeted any
    further defense objections with hostility. In any event, the failure of the defense to
    object to asserted instructional error does not preclude appellate review of that
    error if the substantial rights of the defendant are affected. (§ 1259; People v.
    Slaughter (2002) 
    27 Cal.4th 1187
    , 1199.)
    On its merits, the claim fails. “In reviewing the purportedly erroneous
    instructions, ‘we inquire “whether there is a reasonable likelihood that the jury has
    applied the challenged instruction in a way” that violates the Constitution.’ ”
    (People v. Frye, supra, 
    18 Cal.4th 894
    , 957, quoting Estelle v. McGuire, supra,
    502 U.S. at p. 72.) A single instruction is not viewed in isolation, and the ultimate
    decision on whether a specific jury instruction is correct and adequate is
    determined by consideration of the entire instructions given to the jury. (People v.
    Holt, 
    supra,
     15 Cal.4th at p. 677.)
    There is no reasonable likelihood the jury misapplied the instruction as it
    relates to the state’s burden of proof. Nothing in this instruction specifically
    assigned an evidentiary burden to defendant, but, instead, asked the jury to
    neutrally consider “the entire case” and “together with other evidence.” More
    importantly, nothing in this instruction conflicted with the standard instruction
    given to this jury informing it that prosecution had “the burden of proving
    [defendant] guilty beyond a reasonable doubt.” The jury received a similar
    instruction concerning the state’s burden in proving the truth of the special
    circumstance. Additionally, yet another instruction made clear that “the burden is
    on the People to prove beyond a reasonable doubt that the defendant is the person
    who committed the crimes which he is charged.” (Italics added.) The jury was
    162
    also instructed to “consider the instructions as a whole and each in light of all the
    others” and not to “single out any particular sentence or any individual point or
    instruction and ignore the others.” Under these circumstances, the complained-of
    instruction could not have misled the jury in the manner defendant contends.
    Finally, defendant argues that the trial court erred by refusing to include the
    second sentence of defendant’s proffered instruction about third party culpability:
    “The burden is on the prosecution to prove beyond a reasonable doubt that it was
    the defendant and not another person who committed the charged offenses.”
    Defendant claims that the offered language more clearly defined the prosecution’s
    burden of proof concerning third party culpability. But again, the court instructed
    the jury on defendant’s presumed innocence, the prosecution’s burden of proving
    him guilty beyond a reasonable doubt, and that third party culpability evidence can
    generate reasonable doubt. In rejecting a similar claim that instructions failed to
    clearly assign the burden of proof as to third party culpability, we have stated that
    further instruction would be “repetitious of instructions already given.” (People v.
    Wright (1988) 
    45 Cal.3d 1126
    , 1134.) In this same capacity, we have also stated:
    “It is hardly a difficult concept for the jury to grasp that acquittal is required if
    there is reasonable doubt as to whether someone else committed the charged
    crimes.” (People v. Hartsch (2010) 
    49 Cal.4th 472
    , 504.)
    Had the jury entertained a reasonable doubt that someone else committed
    any homicide it would have acquitted defendant, and, in fact, it did do so in the
    Garcia murder. Consequently “no special instruction on third party culpability
    was necessary to apprise the jury of the pertinent legal principles and, contrary to
    defendant’s argument, the instructions given do not suggest he had the burden to
    prove [a third party] was guilty before he could reap the benefit of the jury’s doubt
    about his own guilt.” (People v. Abilez (2007) 
    41 Cal.4th 472
    , 517.)
    163
    5. Miscellaneous Claims of Instructional Error
    It is not error for the prosecution to refer itself as “ ‘the People’ ” or to try
    defendant in the name of “ ‘the People.’ ” (People v. Thomas (2012) 
    53 Cal.4th 771
    , 816.)
    Defendant contends the trial court erred and violated his constitutional
    rights by failing, on its own motion, to instruct the jury to view the testimony of
    Massingale with distrust because he was assertedly an accomplice to the Jacobs
    murders. But defendant fails to point to any evidence in the record showing that
    Massingale knew defendant or was his accomplice in the Jacobs murders.
    Because there was no known “relationship between the defendant and
    [Massingale], either by virtue of a conspiracy or by acts aiding and abetting the
    crime,” the standard instruction regarding witness credibility was sufficient for the
    jury to evaluate Massingale’s testimony. (People v. Ward (2005) 
    36 Cal.4th 186
    ,
    212.)
    Defendant claims the trial court violated his state and federal constitutional
    rights by refusing to give his requested instruction advising the jury that a
    witness’s “immunity agreement may constitute a motive for bias” and “may be
    considered in assessing the witness’s believability.” He argues the instruction was
    necessary for the jury to evaluate the testimony of Frank Clark, who testified for
    the prosecution under a grant of immunity related to narcotics possession and use.
    But the court instructed the jury with CALJIC No. 2.20, which explained that, in
    determining the believability of a witness, jurors could “consider anything that has
    a tendency reasonably to prove or disprove the truthfulness of the testimony of the
    witness,” including “[t]he existence or nonexistence of a bias, interest, or other
    motive.” (CALJIC No. 2.20.) The jury was aware of Clark’s immunity
    agreement, and nothing in the language of CALJIC No. 2.20 precluded the jury’s
    consideration of Clark’s immunity as a type of “bias, interest, or other motive” in
    164
    judging his credibility. Even assuming the court erred by not giving the requested
    instruction or by modifying CALJIC No. 2.20 to list a grant of immunity as a
    factor in judging a witness’s credibility (see People v. Harvey (1984) 
    163 Cal.App.3d 90
    , 112), a more favorable result was not reasonably probable.
    (Watson, 
    supra,
     46 Cal.2d at p. 836; People v. Carpenter, 
    supra,
     15 Cal.4th at
    p. 393 [“Mere instructional error under state law regarding how the jury should
    consider evidence does not violate the United States Constitution”].) In closing
    statements, defense counsel argued that Clark’s credibility should be doubted
    because of his immunity agreement. In light of the instructions given and closing
    arguments, any error had no effect.
    Defendant complains that it was error for the trial court to allow certain
    witnesses to be referred to as “experts,” because it improperly gave expert
    witnesses undue importance and weight before the jury. But defendant has
    forfeited this claim by failing to raise it before the trial court, and, in any event, the
    court defined who qualified as an expert using CALJIC No. 2.80 and also accepted
    defendant’s proffered instruction that allowed the jury to consider an expert’s
    opinion as no more persuasive than a lay opinion. That defense-requested
    instruction told the jury that “if you conclude that a witness testifying as an expert
    is not in fact an expert, his testimony in the form of an opinion is limited to lay
    opinion that is (1) rationally based on the perception of the witness and (2) helpful
    to a clear understanding of his testimony.” In addition to the other instructions
    cautioning the jury not to accept an expert’s opinions as conclusive and to
    disregard such opinion if not believable or reasonable (see ante, at p. 158), there
    was no danger that the jury would improperly assign greater weight or credibility
    165
    to a witness merely if he or she was referred to as an “expert witness” during the
    proceedings.50
    Defendant claims the trial court erred by refusing his instruction that would
    have expanded the definition of “inference” found in CALJIC No. 2.00, which
    explains that “[a]n inference is a deduction of fact that may logically and
    reasonably be drawn from another fact or group of facts established by the
    evidence.” His requested instruction would have further added that an inference
    “must be based on a rational connection between the fact proved and the fact to be
    inferred,” that, to make such a rational connection, “there must be a finding with
    substantial assurance that the fact proved gives rise to the fact to be inferred,” and
    that an inference “cannot be based on suspicion, imagination, speculation,
    conjecture or guess work” and, if it is, it “must be disregarded.” Defendant cites
    no authority for why the standard definition of “inference” in CALJIC No. 2.00,
    which itself is derived from Evidence Code section 600, is insufficient or why his
    proposed expanded definition was necessary to preserve his rights to due process
    and a fair trial.
    Defendant complains that the trial court gave numerous jury instructions
    that used the permissive terms “should consider” or “may consider,” and he
    alleges this terminology erroneously permitted the jury not to consider crucial
    portions of the evidence. Defendant has forfeited this claim because he failed to
    request the court to modify the instructions except as to the 1988 version of
    CALJIC No. 2.83. The court denied defendant’s request to modify CALJIC
    No. 2.83 to state that in weighing the opinion of one expert against that of another
    50     Because similar instructions were given at the penalty phase, we also reject
    defendant’s forfeited claim that the term “expert” should not have been used at the
    penalty phase.
    166
    “you should must consider the relative qualifications and credibility of the expert
    witnesses, as well as the reasons for each opinion and the facts and other matters
    upon which it is based.” But even assuming that “should” is a more permissive
    term than the word “must,” the purpose of CALJIC No. 2.83 is to inform the jury
    how to resolve conflicting expert opinions and it strongly suggests using their
    respective qualifications, credibility, reasoning, and facts emphasized by witnesses
    to assess any divergent opinions. The instruction does not inform the jury as to
    what evidence it may not consider in resolving conflicting opinions. Defendant
    does not explain why or how, in light of this instruction, the jury would disregard
    the qualifications, credibility, reasoning, and facts emphasized by conflicting
    experts in assessing their opinions. Nor does defendant explain why these factors
    “must” be the only ones to be used to assess such conflicts. As to defendant’s
    other forfeited claims concerning permissive language used in various standard
    instructions,51 those contentions lack merit for the same reasons.52 All of these
    51      Defendant cites no applicable authority addressing why the use of
    permissive language in these various instructions constituted error and the
    instructions appear otherwise to be correct. Therefore, his failure to object to
    alleged instructional error or to request clarification of the instructions generally
    forfeits the issue on appeal. (People v. Catlin (2001) 
    26 Cal.4th 81
    , 149.)
    Defendant also fails to show that any request to modify the instructions would
    have been futile, given that the trial court accepted many of his proposed
    instructions.
    52     Defendant complains that the standard instructions improperly used
    “should” or “may” to permissively allow the jury to consider factors impacting
    eyewitness testimony; cognitive impairment regarding a witness’s prior
    statements; prior inconsistent statements as evidence of credibility and the truth;
    evidence of honesty, truthfulness, and prior convictions in assessing a witness’s
    credibility; the reasons, qualifications, and credibility of an expert for assessing his
    or her opinion; the credibility, perception, and reasons of lay opinion witnesses in
    offering their opinions; and factors of similarity or dissimilarity of other offenses
    in determining a common method, plan, or scheme; and evidence of motive.
    167
    instructions list the factors the jury may consider, but they do not direct the jury to
    reject certain evidence or to limit the factors to those enumerated in the
    instructions. It is pure speculation to believe the jury ignored certain evidence
    simply because an instruction advised the jury that it “should” or “may” consider
    that evidence, instead of commanding the jury to consider that evidence.
    Defendant argues that, because expert and lay opinion testimony are a form
    of circumstantial evidence, the trial court erred by refusing his requested
    instruction to inform the jury that expert testimony and lay opinion were a form of
    circumstantial evidence. But the court instructed the jury on circumstantial
    evidence, which it defined as “evidence that, if found to be true, proves a fact from
    which an inference of the existence of another fact may be drawn.” Because some
    of the expert testimony and much of the lay opinion testimony in this case fit this
    description, this instruction was sufficient. Defendant fails to cite any case
    requiring an instruction expressly stating that expert opinion and lay opinion are a
    form of circumstantial evidence.
    Defendant contends the trial court erroneously denied his motion to delete
    the titles from the written jury instructions given to it during its deliberations, but
    we have previously rejected such an argument. (People v. Bloyd (1987) 
    43 Cal.3d 333
    , 355-356.)
    Defendant argues that the trial court improperly coerced the jury to reach a
    unanimous verdict by instructing it with a version of CALJIC No. 1.00, which
    states that the parties “have a right to expect that you will conscientiously consider
    and weigh the evidence, apply the law, and reach a just verdict regardless of the
    consequences.” Defendant claims this instruction forced the jury to believe that it
    must reach a verdict because the parties and the court expected it to do so. But as
    defendant points out, another standard instruction, CALJIC No. 17.40, told the
    jurors that “the People and the defendant are entitled to the individual opinion of
    168
    each juror,” that “[e]ach of you must consider the evidence for the purpose of
    reaching a verdict, if you can do so,” and that “each of you must decide the case
    for yourself . . . .” (Italics added.) That same instruction also informed the jurors
    not to “decide any question any particular way because a majority of the jurors or
    any of them favor such a decision.” Considering the instructions as a whole
    (Estelle v. McGuire, supra, 502 U.S. at p. 72; People v. Castillo, 
    supra,
     16 Cal.4th
    at p. 1016), the jury could not have been improperly coerced in the manner
    defendant contends. Moreover, the circumstances of the jury’s having hung on
    defendant’s guilt concerning the killings of Rhonda Strang and Amber Fisher belie
    defendant’s claim of coercion.
    6. Other Asserted Deficiencies in the Jury Instructions
    Defendant identifies a number of alleged instructional error claims,
    primarily concerning witness credibility instructions, and further argues that the
    cumulative effect of these asserted errors requires reversal of his judgment. We
    reject all of these claims.
    Defendant first argues that those instructions suggesting that the jury must
    decide between the defendant’s “guilt” or “innocence” lessened the prosecution’s
    burden of proof by implying that the issue was one of guilt or innocence instead of
    guilt beyond a reasonable doubt. We have previously rejected identical
    arguments. (People v. Crew (2003) 
    31 Cal.4th 822
    , 847-848.)
    Defendant also complains that the trial court failed to define, on its own
    motion, the word “material,” as used in CALJIC No. 2.21.2, which allows the jury
    to reject a witness’s entire testimony if the witness was willfully false on a
    “material part” or a “material point” during his or her testimony. But commonly
    used words that have no technical meaning peculiar to the law impose no
    obligation on the court to provide definition in the absence of a request. (People v.
    169
    Rowland (1992) 
    4 Cal.4th 238
    , 270-271.) Because the word “material,” as used in
    CALJIC No. 2.21.2, is within its ordinary meaning of “ ‘substantial, essential,
    relevant or pertinent,’ ” the court did not err by failing to define it. (People v.
    Wade (1995) 
    39 Cal.App.4th 1487
    , 1496.)
    Also in connection with CALJIC No. 2.21.2, defendant contends the
    instruction diluted the reasonable doubt standard because it allowed jurors to
    accept the testimony of witnesses, including prosecution witnesses, after finding a
    mere “probability of truth.” The court instructed the jury that it may reject a
    witness’s entire testimony if he or she willfully testified falsely on a material point
    unless it “believe[s] the probability of truth favors his or her testimony in other
    particulars.” (CALJIC No. 2.21.2.) We have repeatedly rejected similar
    challenges to this instruction. (People v. Solomon (2010) 
    49 Cal.4th 792
    , 827;
    People v. Nakahara (2003) 
    30 Cal.4th 705
    , 714.)
    Defendant argues the trial court erred by not modifying the standard
    instruction on the credibility of witness testimony, CALJIC No. 2.20, to inform the
    jury that the same principles apply to ascertaining the credibility of out-of-court
    statements of persons who did not testify. He claims that this alleged error caused
    the jury to accept the credibility of out-of-court statements at face value and
    without assessing their credibility or reliability. We have previously held, under
    similar circumstances, that no reasonable jurors would interpret these instructions
    so “as to preclude their applying the relevant portions of CALJIC No. 2.20 to their
    evaluation of all the evidence, including the out-of-court statements.” (People v.
    Livingston (2012) 
    53 Cal.4th 1145
    , 1168.)
    Defendant contends that several standard instructions also relevant to
    witness credibility, including CALJIC Nos. 2.21.1, 2.21.2, 2.22, 2.23, and 2.27,
    were deficient because they too refer only to testimony and not out-of-court
    170
    statements. We reject this claim for the same reasons described above. (People v.
    Livingston, supra, 53 Cal.4th at pp. 1167-1168.)
    We likewise reject defendant’s additional claim that the trial court erred by
    refusing his proffered instruction that the testimony presented in transcripts from
    other proceedings that were read into the record should be considered “as if it had
    been given before you in this trial.” Because defendant identifies no prior
    testimony read into the record of a person who did not testify at trial, there was no
    danger that the jury would fail to evaluate any prior testimony the same way as
    instructed under the standard witness credibility instructions.
    Finally, defendant claims the cumulative effect of the asserted errors
    described in this claim requires reversal of his conviction. Defendant has failed to
    identify any error, hence there is no prejudice, individually or cumulatively.
    7. Understandability of the Instructions
    Defendant claims the instructions were not “sufficiently understandable” to
    meet the heightened Eighth Amendment reliability required for a capital trial. To
    support his argument, defendant observes that the Judicial Council established a
    commission that recommended a redrafting of the standard CALJIC instructions
    used at defendant’s trial. (Blue Ribbon Com. on Jury System Improvement, Final
    Rep. (May 6, 1996) p. 93.) He claims that this reevaluation of the instructions
    indicates that the CALJIC instructions were seriously defective in conveying
    necessary legal principles to the jury.
    The fact that the commission ultimately drafted the newer CALCRIM
    instructions, which the Judicial Council subsequently adopted (Cal. Rules of
    Court, rule 2.1050(e)), does not establish that the prior CALJIC instructions were
    constitutionally defective. “Nor did their wording become inadequate to inform
    the jury of the relevant legal principles or too confusing to be understood by
    171
    jurors. The Judicial Council’s adoption of the CALCRIM instructions simply
    meant they are now endorsed and viewed as superior.” (People v. Thomas (2007)
    
    150 Cal.App.4th 461
    , 465-466.)
    8. Adequacy of the Burden-of-proof Instruction
    Defendant lodges a series of complaints against the jury instructions,
    claiming they failed to adequately explain the burden of proof. We find each of
    defendant’s complaints to be meritless because CALJIC No. 2.90 sufficiently
    defined the prosecution’s burden.53
    First, defendant contends the trial court erred in failing to affirmatively
    instruct that defendant had no obligation to present or refute evidence. He argues
    that such an instruction is necessary to prevent any misconception amongst jurors
    that the defendant must produce evidence in order to raise a reasonable doubt.
    Defendant further argues that the court was obligated to inform the jury that the
    presentation of defense evidence does not shift the burden of proof to the
    defendant to prove a reasonable doubt. With the exception of the first claim
    discussed below, defendant has forfeited these claims by failing in the trial court to
    seek amplification or further explanation of the standard instruction given.
    53      The version of CALJIC No. 2.90 (5th ed. 1988) given at trial provided: “A
    defendant in a criminal action is presumed to be innocent until the contrary is
    proved, and in case of a reasonable doubt whether [his] [her] guilt is satisfactorily
    shown, [he] [she] is entitled to a verdict of not guilty. This presumption places
    upon the People the burden of proving [him] [her] guilty beyond a reasonable
    doubt. [¶] Reasonable doubt is defined as follows: it is not a mere possible doubt;
    because everything relating to human affairs, and depending upon moral evidence
    is open to some possible or imaginary doubt. It is that state of the case which,
    after the entire comparison and consideration of all of the evidence, leaves the
    minds of the jurors in that condition that they cannot say they feel an abiding
    conviction, to a moral certainty, of the truth of the charge.”
    172
    (People v. Moon, 
    supra,
     37 Cal.4th at p. 29.) Moreover, on their merits, we
    disagree with defendant’s contentions.
    In People v. Wright, supra, 45 Cal.3d at page 1134, footnote 3, the
    defendant requested that the court instruct the jury that “ ‘[i]t is not necessary for
    the defendant to prove that another person may have committed the crime, nor is it
    the burden of the defendant to prove his innocence.’ ” We held that “the [trial]
    court stated this rule in CALJIC No. 2.90, which defines the presumption of
    innocence and the prosecutor’s general burden of proof beyond a reasonable
    doubt. Defendant’s special instructions . . . [were] thus repetitious of instructions
    already given, and the trial court correctly refused them on this ground.” (Id. at
    p. 1134.) In this case, CALJIC No. 2.90 adequately informed the jury that the
    prosecution had the burden of proof and never suggested that any presentation of
    evidence would shift this burden. Thus, the trial court did not err in omitting the
    instructions defendant now proffers on appeal.
    Defendant next claims that CALJIC No. 2.90 was faulty because it failed to
    inform the jury that the presumption of innocence continues throughout the entire
    trial. Defense counsel sought such an instruction, but the trial court denied the
    request. However, the other instructions provided by the trial court adequately
    imparted this information to the jury. The court instructed the jury that it should
    consider the evidence only for the purpose of reaching a verdict “after discussing
    the evidence and instruction [during deliberations] with the other jurors.” The
    court also instructed the jury that it should not form or express any opinion on the
    case until the cause was finally submitted to the jury. Thus, the trial court did not
    err in refusing defendant’s instruction because these other instructions adequately
    apprised the jury of the need to presume innocence throughout the entirety of the
    trial.
    173
    In a forfeited claim, defendant finds fault in the use of the term “until” in a
    portion of CALJIC No. 2.90. That relevant portion of CALJIC No. 2.90 provided,
    “[a] defendant in a criminal action is presumed to be innocent until the contrary is
    proved, and in case of a reasonable doubt whether his or her guilt is satisfactorily
    shown, he or she is entitled to an acquittal, but the effect of this presumption is
    only to place upon the state the burden of proving him or her guilty beyond a
    reasonable doubt.” He suggests that CALJIC No. 2.90 undermines the
    presumption of innocence because the use of the term “until” instead of “unless”
    implies that proof will necessarily be forthcoming. We dismissed this precise
    argument in People v. Lewis (2001) 
    25 Cal.4th 610
     (Lewis). In Lewis, we found
    that the instruction does not suggest that such evidence will inevitably be produced
    because it expressly dictates what should occur in the event the jury finds a
    reasonable doubt. (Id. at p. 651.) Thus, the use of the word “until” does not create
    misconceptions regarding the burden of proof.
    In another forfeited claim, defendant argues that the word “burden” is a
    technical term that the court was required to define for the jury as “a line” that the
    prosecution must successfully “cross.” The claim is meritless. “If a statutory
    word or phrase is commonly understood and is not used in a technical sense, the
    court need not give any sua sponte instruction as to its meaning.” (People v.
    Rodriguez (2002) 
    28 Cal.4th 543
    , 546-547.) The word “burden,” as used in
    CALJIC No. 2.90, utilizes the term’s common definition as a duty or
    responsibility. (Webster’s 3d New Internat. Dict. (2002) p. 298.) To the extent
    that the term “burden” acquires a technical definition when used in the phrase
    “burden of proof,” the term is wholly defined in CALJIC No. 2.90 as that
    establishing proof beyond a reasonable doubt.
    In a final forfeited claim, defendant argues that CALJIC No. 2.90 was
    incomplete and misleading because it did not adequately define how a jury could
    174
    find a reasonable doubt. He asserts the court should have instructed the jurors that
    conflicting evidence or a lack of evidence could leave them with a reasonable
    doubt. However, the court instructed the jury that the prosecution had the burden
    to prove defendant’s identity as the perpetrator and each element of the charged
    crime. Thus, the jury was informed that the prosecution would not meet its burden
    of proof if the evidence was lacking on any of these points. Additionally, the
    court provided the standard jury instruction for the treatment of circumstantial
    evidence, which instructed the jurors that if the evidence is capable of two
    conflicting, reasonable interpretations, then they must adopt the one that points to
    the defendant’s innocence. These instructions provided at trial sufficiently
    explained the manner in which the jurors could find the existence of a reasonable
    doubt.
    Therefore, the court adequately instructed the jury regarding the
    prosecution’s burden of proof.
    9. Other Challenges to the Burden of Proof Instructions
    Defendant claims the trial court erred by refusing to give his requested
    instructions defining both the clear and convincing evidence standard and his
    version of the reasonable doubt standard54 and making clear that proof beyond a
    reasonable doubt is a higher standard than that for clear and convincing evidence
    and is, indeed, the “heaviest burden imposed in law.” But nothing in his case
    required the application of the clear and convincing standard, and we have
    54      Defendant’s rejected definition of “reasonable doubt” stated:
    “Proof beyond a reasonable doubt requires evidence that is clear, explicit, and
    unequivocal, so clear as to be unmistakable, which persuades to a near certainty of
    the truth of the facts for which it is offered as proof, so as to leave no reasonable
    doubt as to its truth, and is sufficiently strong to command the assent of every
    reasonable and impartial mind to a moral certainty and an abiding conviction.”
    175
    repeatedly held that the standard CALJIC jury instruction defining reasonable
    doubt is correct and adequate. (People v. Brown (2004) 
    33 Cal.4th 382
    , 392;
    Lewis, 
    supra,
     25 Cal.4th at p. 652.)
    Defendant complains that the 1988 version of CALJIC No. 2.90’s
    definition of “reasonable doubt,” unlike his own proffered definition (see ante,
    fn. 54), improperly suggested to the jurors that the reason and logic for their doubt
    should be measured against “mere possible” or “imaginary doubt.”55 That portion
    of the standard instruction cautions jurors that reasonable doubt is “not a mere
    possible doubt, because everything relating to human affairs and depending on
    moral evidence is open to some possible or imaginary doubt” and that reasonable
    doubt is, “state of the case which, after the entire comparison and consideration of
    all the evidence, leaves the minds of the jurors in that condition that they cannot
    say they feel an abiding conviction to a moral certainty, of the truth of the charge.”
    (CALJIC No. 2.90 (5th ed. 1988).) Defendant argues that this language
    improperly obligated jurors to have a reason for any doubt about defendant’s guilt.
    But defendant cites no applicable authority to support his argument, and, as stated
    previously, we repeatedly have held that the standard CALJIC jury instruction
    defining reasonable doubt is correct and adequate. (People v. Brown, supra, 33
    Cal.4th at p. 392; Lewis, 
    supra,
     25 Cal.4th at p. 652.)
    Defendant claims that a portion of the standard definition of reasonable
    doubt given to the jury improperly excluded “mere possible doubt” as a basis for
    55     Defendant further argues that this asserted error was exacerbated by the
    prosecutor’s closing argument that, if the jury could “attach reason and logic” to
    doubt, then it should acquit defendant but that “possible doubt or an imaginary
    doubt” should not result in acquittal. Defendant forfeited such a claim by failing
    to object to this argument. (People v. Hillhouse (2002) 
    27 Cal.4th 469
    , 504.)
    176
    finding reasonable doubt. But the high court has already rejected a “challenge to
    this portion of the instruction,” noting that “[a] fanciful doubt is not a reasonable
    doubt.” (Victor v. Nebraska (1994) 
    511 U.S. 1
    , 17.)
    Defendant complains of certain portions of the standard reasonable doubt
    instruction referring to morality — specifically, the references to some modicum
    of doubt as “depending upon moral evidence” and that reasonable doubt exists if
    jurors “cannot say they feel an abiding conviction, to a moral certainty, of the truth
    of the charge.” He claims the references to “moral evidence” and “moral
    certainty” improperly allowed the jurors to consider moral factors in ascertaining
    guilt. We note that defendant has at least partially forfeited this claim because his
    own proffered instruction defining reasonable doubt made a similar reference to
    “moral certainty” (see ante, fn. 54), and defendant voiced no objection to its use in
    the standard instruction (see ante, fn. 53) that the court ultimately gave to the jury.
    In any event, we have previously rejected similar claims, noting that the high court
    has ruled that such language, although unnecessary, does not render the instruction
    unconstitutional. (People v. Brown, supra, 33 Cal.4th at p. 392, citing Victor v.
    Nebraska, supra, 511 U.S. at pp. 14-15; People v. Freeman (1994) 
    8 Cal.4th 450
    ,
    503-504.)
    Defendant contends the trial court’s circumstantial evidence instructions,
    derived from CALJIC Nos. 2.01 and 2.02 (5th ed. 1988), lightened the
    prosecution’s burden of proof by informing the jury that, if one interpretation of
    the evidence appeared reasonable and another unreasonable, it would be the jury’s
    duty to accept the reasonable interpretation — allegedly undermining the
    requirement that guilt be proved with the higher beyond a reasonable doubt
    standard. We have repeatedly rejected similar claims, noting that “the disputed
    language does not undermine the instructions on the presumption of innocence and
    the standard of proof beyond a reasonable doubt” because other instructions make
    177
    clear the applicable standard of proof. (People v. Wilson (1992) 
    3 Cal.4th 926
    ,
    943; accord, People v. Kipp, 
    supra,
     
    18 Cal.4th 349
    , 375; People v. Crittenden
    (1994) 
    9 Cal.4th 83
    , 144.)
    Defendant also complains that the trial court erred by refusing his requested
    instruction that, similar to the standard instruction concerning circumstantial
    evidence, stated: “if direct evidence is susceptible of two reasonable
    interpretations, one of which points to the defendant’s guilt and the other to his
    innocence, you must adopt that interpretation which points to the defendant’s
    innocence, and reject that interpretation which points to his guilt.” He claims that
    the conflicting interpretation rule applicable to circumstantial evidence applies
    equally to direct evidence. We have previously rejected this claim because direct
    evidence, unlike circumstantial evidence, does not generate conflicting inferences.
    “ ‘Circumstantial evidence involves a two-step process — first, the parties present
    evidence and, second, the jury decides which reasonable inference or inferences, if
    any, to draw from the evidence — but direct evidence stands on its own. So as to
    direct evidence no need ever arises to decide if an opposing inference suggests
    innocence.’ ” (People v. Livingston, supra, 53 Cal.4th at p. 1166, quoting People
    v. Ibarra (2007) 
    156 Cal.App.4th 1174
    , 1187.)
    10. Duties of the Jury Foreperson
    Finally, defendant complains that the trial court erred by failing to instruct
    the jury on the duties of its foreperson at the guilt and penalty phase deliberations.
    He claims the lack of instruction concerning the role of the foreperson gave that
    person undue influence during deliberations and that the jury should have been
    instructed that the foreperson’s vote carried no greater weight than the vote of any
    other juror. Because defendant requested no such instructions, the claim is
    forfeited.
    178
    The trial court told the jury that each juror must “decide the case for
    yourself” and not “decide any question any particular way because a majority of
    the jurors or any of them favor such a decision.” These instructions negated the
    concerns.
    C. Providing the Jury with Trial Transcripts During Deliberations
    For the first time on appeal, defendant claims the trial court committed
    prejudicial error in allowing the jury to read requested trial transcripts in the jury
    room rather than having the testimony read to the jury. Specifically, defendant
    complains that the rereading proceedings were conducted without “special
    directions or cautionary instructions” to the jury regarding the use of the
    transcripts. He argues that the error violated his state and federal constitutional
    rights to be personally present, to counsel, and to the presence of a judge, as well
    as section 1138. We disagree.
    1. Right to Personal Presence
    First, defendant argues that he did not waive his right to personal presence
    at trial and was therefore entitled to be present at the rereading of testimony to
    oversee the fairness of the proceeding. But regardless of whether defendant
    waived his right to be present, the rereading of testimony is not considered a
    critical stage of trial in which the defendant has a constitutional right to personal
    presence. (People v. Ayala, 
    supra,
     23 Cal.4th at pp. 288-289, fn. 8.) A criminal
    defendant’s right to be personally present at trial is guaranteed by the Sixth and
    Fourteenth Amendments to the federal Constitution, as well as article I, section 15
    of the California Constitution. (People v. Davis (2005) 
    36 Cal.4th 510
    , 530.)
    “ ‘ “A defendant, however, ‘does not have a right to be present at every hearing
    held in the course of a trial.’ ” ’ ” (Ibid.) A “ ‘defendant is not entitled to be
    personally present during proceedings which bear no reasonable, substantial
    179
    relation to his or her opportunity to defend the charges against him, and the burden
    is on defendant to demonstrate that his absence prejudiced his case or denied him a
    fair and impartial trial.’ ” (People v. Horton (1995) 
    11 Cal.4th 1068
    , 1120-1121.)
    We have held that “[t]he reading back of testimony ordinarily is not an event that
    bears a substantial relation to the defendant’s opportunity to defend . . . .” (Id. at
    p. 1121.) Therefore, the contested trial court proceedings did not violate
    defendant’s right to be present.
    In any event, defendant’s contentions are without merit. Absent a showing
    of prejudice, a defendant’s “absence from a rereading of testimony does not raise
    due process concerns.” (People v. Fauber (1992) 
    2 Cal.4th 792
    , 837.) The
    defendant fails to explain how his presence would have assisted the defense in any
    way or altered the outcome of his trial. His suggestion that the proceedings could
    have involved “an inadvertent omission of a part of the testimony, a mistake in the
    reading . . . or an inappropriate emphasis of voice” is entirely speculative. Thus,
    we find no error.
    2. Right to Presence of Counsel
    Defendant forfeited his claim when he did not object to the plan proposed
    by the trial court in handling jury requests for testimony. It has long been the rule
    “that communications from the jury should be entertained in open court, with
    notification of counsel.” (People v. Bloyd, supra, 43 Cal.3d at p. 361.) However,
    when, as here, defense counsel is notified and does not disagree with the court’s
    handling of jury requests, we reject defendant’s claim that he was denied his
    constitutional right to counsel during jury deliberation. (Ibid.) Defendant further
    argues that the rereading proceedings violated his constitutional right to counsel.
    The right to counsel “is required at every stage of a criminal proceeding where
    substantial rights of a criminal accused may be affected.” (Mempa v. Rhay (1967)
    180
    
    389 U.S. 128
    , 134.) But as discussed above, we have established that a readback
    proceeding is not a critical stage of trial. Further, counsel has discretion to consent
    to a reading of testimony outside the presence of the court, counsel, and defendant.
    (See People v. Medina, supra, 51 Cal.3d at p. 904; People v. Lang (1989) 
    49 Cal.3d 991
    , 1028; Bloyd, supra, at p. 361.)
    3. Right to Presence of Trial Judge
    Finally, defendant claims that the rereading proceedings violated his
    statutory and constitutional right to the presence of a trial judge. He relies on
    section 1138, which provides that “[a]fter the jury have retired for deliberation, if
    there be any disagreement between them as to the testimony, if they desire to be
    informed on any point of law arising in the case, they must require the officer to
    conduct them into court.” The requested information “must be given in the
    presence of, or after notice to, the prosecuting attorney, and the defendant or his
    counsel, or after they have been called.” (§ 1138.) Defendant argues, for the first
    time on appeal, that this statute “obliges the trial court to supervise and control a
    readback of testimony . . . .”
    Section 1138.5, however, allows for the absence of the trial judge,
    providing: “Except for good cause shown, the judge in his or her discretion need
    not be present in the court while testimony previously received in evidence is read
    to the jury.” Thus, the rereading proceedings did not violate defendant’s statutory
    right to the presence of the trial judge.
    Defendant’s constitutional claim also fails. We have interpreted section
    1138 to provide that “ ‘ “the trial court must satisfy requests by the jury for
    rereading of testimony.” ’ ” (People v. Cox (2003) 
    30 Cal.4th 916
    , 968.) But
    “[t]his statutory right is not of constitutional dimension,” because, as discussed
    above, “ ‘[t]he rereading of testimony is not a critical stage of the proceedings.’ ”
    181
    (Ibid.) “When a trial judge exercises control over whether and what testimony
    previously introduced in evidence should be read to the jurors at their request after
    deliberation has begun, and the judge remains available to address any questions
    from the jurors to the court that might arise during the readback of the testimony,
    nothing in logic, reason, due process of law, or the right to a trial before an
    impartial jury compels the judge to be present while the testimony is read to the
    jurors.” (People v. Rhoades (2001) 
    93 Cal.App.4th 1122
    , 1127.)
    4. Right to a Public Trial
    Defendant contends that the rereading proceedings, conducted in the jury
    room and not in open court, violated his right to a public trial in both the guilt and
    penalty phases. We disagree.
    “Every person charged with a criminal offense has a constitutional right to
    a public trial, that is, a trial which is open to the general public at all times.”
    (People v. Woodward (1992) 
    4 Cal.4th 376
    , 382.) However, the scope of that
    right is not absolute. “The right to public trial may be waived [citation], the
    waiver may be implied from failure to object [citations], and the waiver may be
    made by defense counsel on defendant’s behalf.” (People v. Lang, supra, 49
    Cal.3d at p. 1028.) Although defense counsel initially expressed concerns about
    how counsel would be notified of jury requests and the form in which testimony
    would be read back to the jury, defense counsel understood that the readback of
    testimony would be conducted in the jury deliberation room and not in open court
    when it discussed the rereading proceedings with the trial judge and the
    prosecution. Therefore, “[a]ssuming the right to public trial extends to the reading
    of testimony during jury deliberations,” the defendant effectively waived the right
    by failing to object below. (Ibid.)
    182
    5. Proper Use of Transcripts
    Finally, defendant argues that the trial court erred by failing to instruct the
    jury on the proper use of transcripts during its guilt and penalty phase
    deliberations. He claims that the jury’s request for certain transcripts created the
    danger that it might unduly emphasize those portions of the trial and that the court
    should have admonished the jury to weigh all of the evidence and not give undue
    focus to any particular portion of the trial. This claim is forfeited because the
    defense made no request for such an instruction.
    In any event, defendant cites no binding authority that compels our courts
    to give additional instructions concerning the use of transcripts. Moreover, the
    trial court had already instructed the jurors with the standard instructions
    admonishing them to consider “all the evidence,” that witness testimony was only
    one form of evidence, and that both direct and circumstantial evidence are both
    acceptable means of proof with neither being entitled to weight greater than the
    other. Under these circumstances, the jury was fully informed of its duty to weigh
    all of the evidence and not to rely solely on witness testimony.
    D. Asserted Cumulative Error
    Defendant argues that the cumulative effect of his asserted errors require
    reversal of his convictions. The sole errors we have identified that are relevant to
    the guilt phase of defendant’s trial were the admission of Shannon Lucas’s
    statement concerning the dog collar (see ante, at pp. 105-108), the trial court’s
    ruling on the cross-examination of John Massingale for financial bias (see ante, at
    pp. 138-140) and failing to give a jury instruction on contested authentication
    concerning the photographs of the Love Insurance note (see ante, at pp. 127-128).
    We also assumed, without deciding, the trial court erred by not permitting the
    defense to introduce evidence to evaluate the joining of a weak case with a strong
    case for purposes of joinder and cross-admissibility (see ante, at p. 63), by
    183
    refusing to allow the impeachment of two detectives in the Jodie Santiago
    Robertson case using evidence from an unrelated matter (see ante, at p. 97), and
    by not instructing the jury that a grant of immunity may be a factor in judging a
    witness’s credibility (see ante, at p. 165). But we explained that these errors could
    not have prejudiced defendant. Any cumulative effect of these errors does not rise
    to a level requiring the reversal of defendant’s convictions. (People v. Panah
    (2005) 
    35 Cal.4th 395
    , 479-480.)
    IV. PENALTY PHASE
    A. Disqualification of the Trial Judge in Determining the Admissibility
    of Defendant’s Prior Rape Conviction
    Defendant contends Judge Hammes was biased in determining the
    admissibility of his prior 1973 rape conviction and that she should have
    disqualified herself from deciding the issue. He claims the judge’s refusal to grant
    his motion to disqualify herself violated his state statutory rights and his state and
    federal due process rights to an impartial judge. Defendant’s claim is not
    cognizable on appeal, and, in any event, the judge was not biased.
    In pretrial proceedings, defendant filed a motion to preclude admission of
    his 1973 rape conviction on the ground that the conviction was the result of
    ineffective assistance of trial and appellate counsel. The trial court questioned
    whether defendant could attack his prior conviction in such a manner or whether it
    was more appropriate for him to challenge the validity of his prior conviction by
    filing a separate petition for writ of habeas corpus. After further briefing and
    argument, the court ruled that defendant could not attack his conviction by his
    motion but should instead proceed by habeas corpus. Judge Hammes also made
    clear that she believed that defendant’s motion, if construed as a petition for writ
    of habeas corpus, did not establish a prima facie showing that would entitle him to
    an evidentiary hearing based on his allegations of ineffective assistance of counsel.
    184
    Defendant successfully sought writ relief for the trial court’s ruling, and the Court
    of Appeal issued a peremptory writ of mandate directing the court to consider
    defendant’s motion to strike the prior rape conviction. (Lucas v. Superior Court
    (1988) 
    201 Cal.App.3d 149
    , overruled by Garcia v. Superior Court (1997) 
    14 Cal.4th 953
    .)56
    One month after that decision became final, defendant filed a statement to
    disqualify Judge Hammes from hearing his motion to strike the prior rape
    conviction, alleging under Code of Civil Procedure section 170.1, subdivision (a),
    that the judge had prejudged the admissibility of the prior conviction. Defendant’s
    statement referenced comments Judge Hammes had made months earlier
    concerning her belief that defendant had not made a prima facie showing. It also
    cited a brief comment from the judge made one week before defendant filed his
    disqualification motion in which she stated her belief that defendant needed to
    make an offer of proof and argument before the motion to strike could proceed.
    Judge Hammes struck defendant’s disqualification statement in a written
    order on dual grounds — untimeliness and an insufficient basis for
    disqualification. In the order, Judge Hammes noted that defense counsel had
    known the basis for defendant’s alleged claim of bias for at least the prior three
    56     We disapproved Lucas v. Superior Court, supra, 
    201 Cal.App.3d 149
    ,
    based on the high court’s decision in Custis v. United States (1994) 
    511 U.S. 485
    ,
    which, in a noncapital context, generally held that “a defendant has no right under
    the federal Constitution to challenge the constitutional validity of a prior
    conviction in proceedings involving a subsequent offense . . . .” (Garcia v.
    Superior Court, supra, 
    14 Cal.4th 953
    , 963.) But we declined to impose this bar
    in a capital case when the prior conviction was a special circumstance making the
    defendant eligible for the death penalty. (People v. Horton, 
    supra,
     11 Cal.4th at
    p. 1134.) We have not decided whether the bar applies to a case such as this one
    where a prior conviction is being used as an aggravating factor in a capital case.
    We express no opinion on this matter here.
    185
    months. She also concluded that defendant’s statement was legally insufficient
    because the complained-of comments merely reflected her then-tentative legal
    opinion of the merits of defendant’s motion to strike based on the evidence
    defendant had provided at that point and such opinions cannot be grounds for
    disqualification. She further noted that nothing defendant referenced in his
    statement suggested that she had prejudged the matter without regard to whatever
    additional evidence might be presented or arguments made.
    Defendant then made an offer of proof to augment his original motion to
    strike the prior conviction, and the trial court subsequently held an evidentiary
    hearing. After considering defendant’s evidence, the court denied defendant’s
    motion to strike.
    Defendant’s claim that he was statutorily entitled to the disqualification of
    Judge Hammes is not cognizable on appeal because a “determination of the
    question of the disqualification of a judge is not an appealable order and may be
    reviewed only by a writ of mandate from the appropriate court of appeal sought
    only by the parties to the proceeding” within 10 days of notice to the parties of the
    decision. (Code Civ. Proc., § 170.3, subd. (d).) Because defendant failed to seek
    writ review, his statutory claim is not cognizable here. For this same reason,
    defendant’s due process claim is forfeited as well. (People v. Brown (1993) 
    6 Cal.4th 322
    , 335-336.)
    In any event, even if defendant had preserved these issues on appeal, his
    claims are without merit. As the trial court correctly recognized, “[i]t is well
    settled . . . that the expressions of opinion uttered by a judge, in what he conceives
    to be a discharge of his official duties, are not evidence of bias or prejudice.”
    (Kreling v. Superior Court of Los Angeles County (1944) 
    25 Cal.2d 305
    , 310-311.)
    186
    B. Challenges to the Admissibility of Defendant’s Prior Rape
    Conviction
    Defendant lodges several challenges to the admissibility of his prior 1973
    rape conviction. We reject all of them.
    1. Ineffective Assistance of Trial Counsel
    Defendant argues that the trial court erred in failing to grant his motion to
    strike his prior rape conviction on the grounds that he had received constitutionally
    inadequate assistance of counsel during that prior trial. Defendant claims his trial
    counsel failed to discover that a friend of the victim had called the victim and that
    the timing of this call was inconsistent with the prosecution’s theory of when
    defendant had abducted and raped the victim. According to defendant, had trial
    counsel presented evidence of this telephone call at trial, it would have severely
    undermined the prosecution’s case against him.
    To meet his burden, defendant must demonstrate both that counsel’s
    performance was deficient when measured against the standard of a reasonably
    competent attorney, and that counsel’s deficient performance resulted in prejudice,
    in that it “ ‘so undermined the proper functioning of the adversarial process that
    the trial cannot be relied on as having produced a just result.’ ” (People v. Kipp,
    
    supra,
     18 Cal.4th at p. 366, quoting Strickland v. Washington (1984) 
    466 U.S. 668
    , 686.) If petitioner fails to show prejudice, a reviewing court may reject the
    claim without determining whether counsel’s performance was adequate. (People
    v. Mendoza (2000) 
    24 Cal.4th 130
    , 164.)
    Defendant claims the evidence the prosecution presented at trial showed
    that the conduct involving the victim’s abduction and rape occurred between
    9:30 p.m. and 10:30 p.m. on May 27, 1973. Because the telephone call between
    the victim and her friend, Alejandrina Casas, occurred at 10:00 p.m., while the
    victim was still at her residence, and the victim made no indication that she had
    187
    been abducted and raped, defendant contends that this call constituted exonerating
    evidence that his counsel should have discovered and presented at trial.57 The
    record does not reveal why trial counsel did not interview Casas before trial and
    discover the 10:00 p.m. call. But even assuming counsel was deficient in this
    regard, defendant fails to show prejudice.
    First, the exact time of the victim’s abduction and rape and the duration of
    the crimes were far from certain based on the testimony presented at defendant’s
    rape trial. The victim testified that she was unsure of the exact time of her
    abduction, placing it as early as 9:30 p.m. or as late as 10:30 p.m. The victim’s
    estimate about the duration of the abduction and rape was 30 to 35 minutes. A
    neighbor testified that she saw defendant return home at 10:30 p.m., although she
    had told an officer two days after the crimes that defendant returned between
    10:30 and 11:00 p.m. Therefore, even if the defense had presented evidence of
    Casas’s 10:00 p.m. telephone call, it would not have exonerated defendant nor
    contradicted the prosecution’s theory of when defendant had abducted and raped
    the victim.
    More important, Casas’s testimony fortified the victim’s identification of
    defendant as her attacker. After the original rape trial, defendant’s counsel learned
    of the 10:00 p.m. telephone call and filed a petition for coram nobis after which
    the trial court held a hearing and heard testimony from Casas concerning the
    telephone call. At this hearing, Casas testified that she saw defendant with his
    friends having a party at the victim’s residence earlier on the night in question, and
    that, around 9:00 p.m., the victim asked her to tell him and his friends to leave.
    57     Defendant also alleges that the victim told her friend not to tell
    investigators about this telephone call, but there is no such evidence in the record.
    188
    Casas testified that she told defendant to leave, and he responded, “Yes, ma’am,
    I’ll leave the house.” After Casas left, she returned home and called the victim at
    10:00 p.m. to determine whether defendant and his friends had left, and the victim
    reported that they were gone. According to Casas, the next day, she received a
    telephone call from the victim in which she hysterically explained that the same
    person that Casas had told to leave had later returned to rape her at knifepoint.
    Consequently, Casas’s testimony would not have impeached the
    prosecution’s version of events and would have only solidified the victim’s
    identification of defendant as her assailant. Defendant has failed to demonstrate
    constitutionally inadequate assistance of his counsel in his prior rape case, and the
    trial court correctly rejected his motion to strike that conviction.58
    2. Conflict of Interest of Appellate Counsel and the Failure to Seek
    Rehearing
    Defendant asserts the trial court erred in failing to grant his motion to strike
    his prior conviction based on his claim that his appellate counsel performed under
    a conflict of interest. Defendant contends a conflict existed because defendant’s
    mother paid for appellate counsel’s representation of him and controlled the issues
    he raised on appeal, including preventing him from raising a claim critical of trial
    counsel. He further contends that the failure to pay appellate counsel to file a
    petition for rehearing, after his rape conviction was affirmed on appeal, also
    required the court to strike his prior conviction. The trial court held a hearing in
    which appellate counsel testified concerning his work on appealing defendant’s
    58     For these same reasons, appellate counsel in defendant’s rape case did not
    render constitutionally inadequate representation by failing to raise this issue on
    appeal, and, therefore, this circumstance also did not constitute a basis for the trial
    court to strike the prior conviction.
    189
    rape conviction. We conclude the court properly rejected a claim that appellate
    counsel labored under a conflict that rendered his rape conviction invalid.
    Defendant claims that, without his consultation, his mother convinced
    appellate counsel not to raise on appeal a claim that trial counsel rendered
    constitutionally inadequate representation because of his alleged failure to seek a
    psychiatric examination of the rape victim under Ballard, supra, 
    64 Cal.2d 159
    .
    But the record demonstrates that defendant was 19 years old at the time,
    unsophisticated, and had intentionally delegated supervision of appellate counsel’s
    representation to his mother. Defendant provides no evidence that he wanted to
    make decisions concerning his case or was otherwise excluded from the
    decisionmaking process concerning his appeal. Although appellate counsel
    characterized the mother’s decision to delete the ineffective assistance claim as
    “stupid,” the proper way to raise a claim of ineffective assistance of counsel is
    generally by writ of habeas corpus, not appeal (People v. Pope (1979) 
    23 Cal.3d 412
    , 426), and defendant fails to explain why the appellate record was sufficient to
    raise such a claim successfully on appeal.59
    Defendant also alleges that his mother’s inability to pay appellate counsel
    for additional services resulted in a lack of investigation, the failure to transcribe
    the opening and closing statements at trial, and the failure to file a petition for
    rehearing or seek review before this court. But “[t]he right of a nonindigent
    criminal defendant to discharge his retained attorney, with or without cause, has
    59      Defendant also claims his appellate counsel should have raised several
    other claims of ineffective assistance of counsel, but defendant raises these claims
    under the theory that his mother’s supervision of appellate counsel created a
    conflict of interest that prevented appellate counsel from raising claims critical of
    trial counsel. According to appellate counsel, the Ballard claim is the only issue
    that defendant’s mother had precluded appellate counsel from raising.
    190
    long been recognized in this state” (People v. Ortiz (1990) 
    51 Cal.3d 975
    , 983),
    and defendant clearly had the right to appointed counsel if he became indigent
    (Douglas v. California (1963) 
    372 U.S. 353
    , 355; People v. Jones (1991) 
    53 Cal.3d 1115
    , 1137). Consequently, defendant has forfeited these issues by failing
    to seek appointment of counsel. By choosing to proceed as he did, there was no
    conflict that adversely affected the appeal — rather, defendant and his mother
    simply chose to limit the scope and cost of the appeal. For this same reason,
    appellate counsel did not render constitutionally inadequate assistance by failing to
    file a petition for rehearing because counsel “must always respect and defer to
    those decisions properly reserved to his client.”60 (Davis v. State Bar (1983) 
    33 Cal.3d 231
    , 238.)
    3. Admissibility of Evidence Attacking the Reliability of Defendant’s
    Prior Conviction
    Defendant claims the trial court erred by refusing to admit certain evidence
    that defendant argues was relevant to whether he actually committed the prior
    1973 rape. We reject these claims.
    Defendant asserts the trial court erred by refusing to admit evidence
    showing he had passed a polygraph test concerning his alleged innocence
    regarding his prior rape conviction. Despite acknowledging the existence of a
    statutory bar to the admission of such evidence (see Evid. Code, § 351.1), he
    claims the asserted error violated his Eighth Amendment right to present
    60     The only issue defendant identifies that should have been included in a
    petition for rehearing is the appellate court’s alleged misunderstanding of the
    importance of Casas’s telephone call insofar as it related to the prosecution’s
    theory of when the abduction and rape occurred. But, as explained above, Casas’s
    testimony would not have assisted the defense. (See ante, at pp. 187-189.)
    191
    mitigating evidence, his right to due process, and his state right to present relevant
    evidence.
    We have recognized that “ ‘there is simply no consensus that polygraph
    evidence is reliable,’ ” — and indeed, “this lack of consensus is ‘reflected in the
    disagreement among state and federal courts concerning both the admissibility and
    the reliability of polygraph evidence’ ”; in this setting, “the per se exclusion of
    polygraph evidence ‘is a rational and proportional means of advancing the
    legitimate interest in barring unreliable evidence’ . . . .” (People v. Wilkinson
    (2004) 
    33 Cal.4th 821
    , 849, quoting United States v. Scheffer (1998) 
    523 U.S. 303
    ,
    309-311, 312 (lead opn. of Thomas, J.).) Nor are we persuaded that a different
    rule should apply in the penalty phase of a capital trial. The right to present
    mitigating evidence in the penalty phase “does not trump or override the ordinary
    rules of evidence.” (People v. Thornton (2007) 
    41 Cal.4th 391
    , 454.) The trial
    court correctly applied the statutory bar to the admission of defendant’s polygraph
    testing.
    Defendant further argues that the trial court should have admitted evidence
    concerning Casas’s telephone call and evidence of his trial counsel’s alleged
    inadequate representation. He claims the failure to admit such evidence violated
    his Eighth Amendment rights to challenge aggravating evidence and to present
    evidence in mitigation and his right to heightened reliability in a capital trial, as
    well as his federal due process rights.
    Because the record shows no request by trial counsel to admit evidence of
    Casas’s telephone call, this claim is forfeited. The trial court did allow trial
    counsel to testify about his knowledge and opinion of defendant and his belief that
    defendant was innocent of the rape, but refused to admit testimony that would, in
    effect, relitigate the prior conviction. The court also allowed defendant to present
    the testimony of Curt Andrewson, who had been a witness in the rape trial, and
    192
    allowed him to testify as an alibi witness and to his belief that defendant was
    innocent of the 1973 rape.
    The trial court properly exercised its discretion to exclude evidence of any
    alleged deficient representation because its probative value was substantially
    outweighed by the probability that exploring trial counsel’s alleged deficiencies
    would have created a substantial danger of confusing the issues or misleading the
    jury. (People v. Guerra (2006) 
    37 Cal.4th 1067
    , 1145.) As previously explained,
    defendant’s claim primarily concerns counsel’s failure to discover evidence of
    Casas’s telephone call before trial, but that call did little to thwart the
    prosecution’s theory of the case or to establish defendant’s innocence. (See ante,
    at pp. 187-189.) Moreover, as explained earlier, it appears that Casas’s testimony,
    if probed, would have identified defendant as the rape victim’s attacker. Because,
    viewed as a whole, Casas’s telephone call carried little probative value in
    defendant’s favor, a lengthy exploration concerning why trial counsel failed to
    learn of the telephone call earlier would have been confusing to the jury, and its
    omission could not have affected the verdict.
    C. Prosecutorial Misconduct
    Defendant asserts several claims of prosecutorial misconduct. At the
    outset, we reject the Attorney General’s argument that defendant forfeited these
    claims by failing to object at trial. The trial court stated its preference for the
    parties not to interrupt and make objections during closing statements, and instead
    asked that objections be made at the end of argument or before breaks. Defense
    counsel did make objections for all of the claimed misconduct, typically after the
    prosecution was done speaking.
    193
    1. References to the Bible and “Good versus Evil”
    Defendant contends the prosecutor committed misconduct in his penalty
    phase argument by (1) referring to a biblical verse at the beginning and end of his
    closing statement in which he quoted, without citing, Proverbs 24:20 — “The
    candle of the wicked shall be put out”; and (2) invoking “good versus evil” as a
    central theme, and expressly telling jurors it was their role to be involved in the
    “battle between good versus evil” in choosing a penalty of death or a penalty of
    life without the possibility of parole. Defendant argues the prosecutor’s conduct
    was improper and prejudicial because his closing argument invoked higher
    religious law, erroneously implied jurors could justify a death verdict based on
    that law, and misstated the jurors’ role and their sense of penalty responsibility in
    violation of his Eighth Amendment right to a reliable penalty determination.
    In the prosecutor’s lengthy penalty argument, after the opening reference to
    the biblical verse, he stated, “Ladies and gentlemen by your verdicts of guilty you
    have determined that these vile, cold-blooded, savage, and brutal murders
    committed by Mr. Lucas indeed make him a wicked person. Your decision will be
    to decide whether or not the candle of life within Mr. Lucas shall be put out. And
    I submit to you and I suggest to you that the evidence in aggravation is
    astonishing. It is overwhelming in support of a finding of death in your verdict.”
    The prosecutor then explained how the jurors were to decide what penalty
    to impose on Mr. Lucas. He said, “ Your duty is one that requires that you both
    impose a penalty that is mandated by law that will be given to you and, secondly, a
    penalty that is just.” Next, the prosecutor explained how to identify and weigh
    aggravating factors. He advised the jury that only two of the applicable factors in
    aggravation had to be proven beyond a reasonable doubt and that the jurors need
    not be unanimous in determining whether an aggravating factor existed. He then
    explained that, because defendant had stipulated to the two factors (both
    194
    concerning the 1973 rape), those two factors had effectively already been proved
    to exist beyond a reasonable doubt. Then the prosecutor said: “The ultimate test
    — the ultimate test for you to concern yourself with is this; in the event, after full
    and complete consideration of the penalty evidence and the guilt evidence, you
    feel that the circumstances in aggravation are so substantial in comparison to the
    mitigating circumstances, only in that event are you capable of rendering a verdict
    of death. And I submit to you, again, indeed this evidence is overwhelming in
    support of a verdict of death. I am going to begin, first of all, by discussing these
    factors which support the legal mandate of your decision, and then I will move to
    the second half of your responsibility, and that is to make a determination as to
    what is the just penalty.”
    The prosecutor then described the 10 factors in aggravation and explained
    that the jurors had to consider all the factors independently and accord each of
    them appropriate weight. The prosecutor explained that the defense would plead
    for sympathy and mercy and further stated, “His lawyers will beg for mercy from
    you, but we all know that mercy is not an earthly gift. It is a divine gift, and only
    God can grant mercy. Your duty, ladies and gentlemen, is to dispense justice, and
    after you have done so, then Mr. Lucas will seek his mercy from God, and God
    will consider whether mercy is appropriate.”
    Finally, in concluding, the prosecutor theorized that “[w]ithin the story of
    life, ladies and gentlemen, is the battle between good and evil. There are times
    when we have to enter into the battle of good and evil. Sometime it’s not pleasant,
    but sometimes we have to do that. And as sworn jurors, you have agreed to do
    that. And one of those times is now for you to enter into this battle between good
    and evil. Capital punishment has been with us for thousands of years, as Moses
    laid it down, as the punishment for premeditated murder, and we have had it ever
    since because it is a just penalty when someone commits the ultimate act of evil.
    195
    We know now by your verdicts that Mr. Lucas has indeed committed the ultimate
    acts of evil in murders. You are going to hear, I am sure, that the death penalty is
    inhumane; it is immoral. I say to you, ladies and gentlemen, it is — that notion is
    historical and logical nonsense. For in that battle between good and evil there are
    times when we must, when we must get into that battle and do what is right and
    what is just and sometimes that requires that we impose the death penalty, and it is
    proper and just in this case. However, it can never be just for the purpose or the
    reason that someone fails to get into that battle, because if you fail to get into that
    battle and deal with it and do what is just, if you fail, then justice is not done. You
    may be told that the battle will be won by giving Mr. Lucas life without the
    possibility of parole, and I say no, no, ladies and gentlemen, no. The appropriate
    penalty is death, because his lawyers will ask you for life . . . . No one is going to
    try to tell you that your task is a pleasant one; no one. But you must get into the
    battle between good and evil and take care of that problem. This case cries for the
    penalty of death, and the candle of the wicked shall be put out.”
    Defense counsel then objected to the prosecutor’s “good versus evil”
    argument, to the reference to Moses as an improper invocation of “religious
    passion,” and to the reference that only God could grant mercy. The court agreed
    to give a curative instruction to address the prosecutor’s comments about mercy, 61
    but stated it was not concerned about the other comments.
    61     Before the defense began its closing statements, the court admonished the
    jury: “I want to advise you that the law does specifically provide that the jury may
    consider mercy for the defendant in considering his sentence.”
    196
    “It is well settled that biblical law has no proper role in the sentencing
    process.”62 (People v. Roybal, supra, 19 Cal.4th at p. 520.) And we have said
    repeatedly that “[a] prosecutor may not cite the Bible or religion as a basis to
    impose the death penalty.” (People v. Zambrano, supra, 41 Cal.4th at p. 1169; see
    People v. Ervin, 
    supra,
     22 Cal.4th at p. 100; People v. Roybal, supra, at pp. 519-
    521.) Yet, we have suggested that some biblical reference may be permissible “to
    argue, for the benefit of religious jurors who might fear otherwise, that application
    of the death penalty according to secular law does not contravene biblical doctrine
    [citations], or that the Bible shows society’s historical acceptance of capital
    punishment.” (Zambrano, supra, at p. 1169.) The prosecutor’s biblical reference
    to Moses merely emphasized the historical existence and acceptance of capital
    punishment. (People v. Williams (1988) 
    45 Cal.3d 1268
    , 1325 [no prosecutorial
    misconduct for stating that “ ‘you will find that Moses laid down capital
    punishment as the punishment for premeditated murder’ ”].)
    The one obviously improper reference to higher authority — that only God
    may grant mercy — was cured by the court’s admonition and the court’s standard
    instructions listing mercy as a factor to consider.
    Defendant argues that the prosecutor’s theme of good versus evil has
    biblical roots and that the reference to the candle of the wicked “was unmistakably
    biblical in style and readily recognizable by persons schooled in the Christian
    62     We note, however, that our holdings clearly condemning prosecutorial
    references to biblical authority in penalty phase closing argument were filed in
    1992 and thereafter, whereas the argument here occurred in 1989. (See People v.
    Wash (1993) 
    6 Cal.4th 215
    , 260-261; People v. Sandoval (1992) 
    4 Cal.4th 155
    ,
    193-194; People v. Wrest (1992) 
    3 Cal.4th 1088
    , 1107.) Accordingly, we make no
    finding concerning whether the prosecutor committed misconduct, but instead
    focus on whether any improper references unduly prejudiced defendant.
    197
    religion.” (People v. Sandoval, 
    supra,
     4 Cal.4th at p. 193.) Even so, these
    statements were harmless beyond a reasonable doubt.
    This court has held that, in similar contexts, when improper biblical
    references “ ‘were part of a longer argument that properly focused upon the factors
    in aggravation and mitigation’ ” such improper statements are harmless because
    “there is no likelihood his biblical references diminished the jury’s sense of
    responsibility or displaced the court’s standard penalty instructions. [Citations.]”
    (Zambrano, supra, 41 Cal.4th at p. 1170.) The record shows the asserted biblical
    references were but a fraction of the prosecutor’s overall argument when
    compared to his focus on the factors in aggravation and mitigation.
    Defendant argues that the references may have made a difference because
    the deliberations were closely balanced based on the jury’s repeated
    announcements of deadlock, the length of deliberations, and its requests for
    transcripts and for reinstruction. But in a case as long and complex as this one,
    lasting nearly one year, with nearly 800 exhibits and more than 13,000 pages of
    reporter’s transcript for the trial alone, the requests for transcripts and reinstruction
    and the length of deliberations is unsurprising. Consequently, “the length of the
    deliberations demonstrates nothing more than that the jury was conscientious in its
    performance of high civic duty.” (People v. Cooper, 
    supra,
     53 Cal.3d at p. 837.)
    2. Implying That a Death Sentence Was Preordained
    Defendant assigns as prejudicial error the prosecutor’s statement during
    closing argument: “If Mr. Lucas does not deserve the death penalty in this case,
    we should abolish it as a measure of punishment in the state of California.” He
    claims the trial court’s refusal to address or correct this statement had the effect of
    suggesting that the authors of the death penalty law had preordained a death
    sentence in a case like this, implied a duty that jurors must decide on a sentence of
    198
    death, and minimized the significance of any mitigating evidence. He argues the
    error violated his rights under the Eighth and Fourteenth Amendments. We
    disagree.
    The complained-of statement cannot be viewed in isolation. Throughout
    the prosecutor’s argument, he repeatedly emphasized the jury’s role in following
    the law by weighing the applicable factors in order to determine whether a death
    sentence was appropriate. The prosecutor’s statement was merely an attempt to
    emphasize the weight of the aggravating factors, and argue that this is the kind of
    case in which a death sentence should be imposed. Under these circumstances, the
    prosecutor’s comments were within the bounds of proper argument. (See People
    v. Jones (1997) 
    15 Cal.4th 119
    , 185 [prosecutor’s argument that not imposing
    death would make death penalty meaningless is not misconduct because “the
    import of this comment is that the present case is precisely the type in which the
    death penalty should be imposed” and “[t]his is within the bounds of proper
    argument”].)
    3. Arguments Minimizing Mitigating Evidence
    Defendant takes issue with the following remark made by the prosecutor
    during closing statements: “[Defendant’s] friends came in and said he was a good
    guy. . . . Ted Bundy was a good guy when he wasn’t murdering people.”
    Defendant claims the trial court should have addressed his objection to this
    reference because it improperly encouraged the jury to disregard and discount his
    mitigating evidence and was improperly based on facts outside the trial record.
    But the remark was anchored to a matter of common knowledge concerning
    a well-publicized serial killer and constituted fair comment on the evidence. The
    general rule against referring to matters outside the record does not apply to
    matters of common knowledge or illustrations drawn from experience, history, or
    199
    literature. (People v. Boyette, 
    supra,
     29 Cal.4th at p. 463.) In People v. Ervin,
    
    supra,
     
    22 Cal.4th 48
    , 99, the prosecutor addressed the testimony of defendant’s
    mother, who claimed her son was “ ‘a nice person’ ” by stating, “ ‘To say Curtis
    Ervin is a nice person is like saying Charles Manson is the Messiah.’ ” We
    concluded that this comment, which used an infamous killer to make a point, “was
    within the scope of fair comment on the evidence” regarding the defendant’s
    crimes of kidnapping and killing his victim. (Ibid.) The challenged comment here
    is no different.
    4. Cumulative Effect of Misconduct
    Defendant claims that, if not individually prejudicial, his claims of
    prosecutorial misconduct cumulatively require reversal. But we have found only
    one error in the prosecutor’s argument (see ante, at p. 197), and the trial court
    corrected that error with an admonition and again with an instruction. This
    rendered the error harmless. We also assumed, without deciding, various other
    errors in the prosecutor’s argument that the court did not correct, but we concluded
    all were harmless in light of the prosecutor’s whole argument. The combined
    effect of the error and asserted errors did not prejudice defendant. (People v.
    Panah, 
    supra,
     35 Cal.4th at pp. 479-480.)
    D. Instructional Error
    1. Use of Guilt-phase Convictions in Determining Defendant’s Guilt in
    the 1973 Rape
    Defendant contends the trial court prejudicially erred by failing to instruct
    the jury on its own motion that the jury could not consider the guilt-phase
    convictions in determining whether the 1973 prior rape had been proved beyond a
    reasonable doubt. He claims this instruction was necessary because the jury may
    have applied the cross-admissibility instructions from the guilt phase during its
    penalty phase deliberations. He argues the error violated his state and federal
    200
    rights to due process and the Eighth Amendment in determining the reliability of
    his death sentence. There was no error.
    As defendant acknowledges, we have previously rejected the claim that a
    guilt phase jury cannot hear evidence of other crimes at the penalty phase.
    (People v. Williams, 
    supra,
     16 Cal.4th at p. 239.) More important, defendant
    merely speculates that the jurors applied cross-admissibility instructions to the
    penalty phase in determining defendant’s guilt for the 1973 rape, even though such
    instructions were not given at the penalty phase. If defendant nonetheless believed
    the circumstances required additional attention, he should have requested a
    limiting instruction, because, even in the penalty phase trial of a capital case, “a
    trial court is under no duty to instruct on the limited admissibility of evidence of
    past criminal conduct in the absence of a request.” (People v. McLain (1988) 
    46 Cal.3d 97
    , 113.) The trial court did not err.
    2. Instructions Concerning Defendant’s Guilt and Conviction in the
    1973 Rape
    Defendant contends the trial court’s instructions concerning defendant’s
    1973 rape case caused the jury to avoid determining whether he had committed
    that crime beyond a reasonable doubt. As explained below, one instruction
    concerned defendant’s conviction for that offense whereas the other concerned his
    guilt for that offense. There was no error.
    In order to prove the aggravating factor of a prior conviction under section
    190.3, factor (c), the prosecution introduced evidence of defendant’s conviction
    for the 1973 rape, and the trial court gave the following instruction: “Evidence
    has been introduced for the purpose of showing that the defendant has been
    convicted of the crime of forcible rape while armed with a deadly weapon prior to
    the offenses of murder in the first degree of which he has been found guilty in this
    case. [¶] Before you may consider such alleged crime as an aggravating
    201
    circumstance in this case, you must first be satisfied beyond a reasonable doubt
    that the defendant was in fact convicted of such prior crime.”
    Defendant claims this instruction allowed the jury to accept defendant’s
    guilt as having been proved by this conviction without determining whether
    defendant had in fact committed the rape beyond a reasonable doubt for purposes
    of establishing prior violent conduct under section 190.3, factor (b). But
    defendant ignores the fact that the jury was given an instruction specific to the
    factor (b) evidence: “Evidence has been introduced showing that the defendant
    has committed a criminal act which involved the express or implied use of force or
    violence or the threat of force or violence. The act is as follows: [¶] Forcible
    rape while armed with a deadly weapon; to wit, a knife. [¶] Before you may
    consider such criminal act as an aggravating circumstance in this case, you must
    first be satisfied beyond a reasonable doubt that the defendant did in fact commit
    such criminal act.”
    Taken together, these instructions required the jury to determine beyond a
    reasonable doubt whether defendant had been convicted of the 1973 rape and
    whether he had actually committed the rape. These instructions did not conflict;
    the jury was permitted to accept the truth of defendant’s rape conviction, made by
    way of a stipulation, but nonetheless entertain and act on any lingering doubts
    concerning whether defendant had actually committed the 1973 rape.
    Consequently, the jury received adequate instruction.
    3. Lingering Doubt Instruction
    Defendant contends the trial court’s lingering doubt instruction was
    insufficient in several ways. He asserts the court should have given his requested
    instruction that both identified lingering doubt as a factor in mitigation and
    required the jury to consider such doubts, instead of merely allowing it to consider
    202
    any doubts. Although he made no such requests at trial, he also claims the court
    failed to define “lingering doubt” and failed to make clear that the concept could
    be applied to each of his convictions. He argues the errors violated his state and
    federal rights to due process and his Eighth and Fourteenth Amendment rights to
    have relevant mitigating evidence considered by his jury. We disagree.
    “Although a defendant may assert his or her possible innocence in
    mitigation, and the jury may consider lingering doubt in determining the
    appropriate penalty, there is no requirement that the court specifically instruct the
    jury to consider lingering doubt.” (People v. Lewis (2009) 
    46 Cal.4th 1255
    , 1314.)
    We have also rejected claims, which defendant has forfeited here, that lingering
    doubt must be defined, or that it must be identified as a mitigating factor. (People
    v. Demetrulias (2006) 
    39 Cal.4th 1
    , 42; People v. Lawley (2002) 
    27 Cal.4th 102
    ,
    166.) In any event, the standard instructions that compel jurors to consider the
    circumstances of the crime and any other circumstance extenuating the gravity of
    the crime, in addition to the defense arguments highlighting the question of
    lingering doubt, “suffice to properly put the question before the penalty jury.”
    (People v. Demetrulias, supra, at p. 42.) Because no lingering doubt instruction is
    required, defense counsel argued the issue to the jury, and the instruction given
    here was not otherwise misleading, the court did not err.
    4. Consideration of All Mitigating Evidence Presented
    Defendant contends the trial court gave the jury an instruction on mitigating
    evidence that improperly limited its consideration of such evidence to only
    defense evidence and not any mitigating evidence introduced by the prosecution.
    Although he made no request of the trial court to modify the relevant instruction,
    he claims the error violated his state and federal rights to due process and his
    203
    Eighth and Fourteenth Amendment rights to have relevant mitigating evidence
    considered by his jury. There was no error.
    The trial court gave a modified version of CALJIC No. 8.85, which stated,
    in relevant part: “In determining which penalty is to be imposed on the defendant,
    you shall consider all of the evidence which has been received during the guilt
    phase of this trial insofar as such evidence is relevant to factors in aggravation or
    mitigation. . . . [¶] You shall consider, take into account, and be guided by the
    following factors, if applicable: . . . [¶] Any other circumstance which extenuates
    the gravity of the crime even though it is not a legal excuse for the crime; and any
    sympathetic or other aspect of the defendant’s character, background or record
    that the defendant offers as a basis for a sentence less than death, whether or not
    related to the offense for which he is on trial.” (Italics added.)
    Defendant argues use of the phrase “that the defendant offers” precluded
    the jury from considering any guilt phase evidence introduced by the prosecution
    that the jury might have considered mitigating. Defendant has forfeited this claim
    by failing to make any attempt at trial to modify this instruction.
    In any event, the disputed language is consistent with the high court’s
    construction of the federal Constitution. In Lockett v. Ohio (1978) 
    438 U.S. 586
    ,
    604, the high court held that a capital sentencer cannot be precluded from
    considering “as a mitigating factor, any aspect of a defendant’s character or record
    and any of the circumstances of the offense that the defendant proffers as a basis
    for a sentence less than death.” (Second italics added.) Based on Lockett, our
    state adopted the disputed language now found in CALJIC No. 8.85. (People v.
    Easley (1983) 
    34 Cal.3d 858
    , 878, fn. 10.)
    Furthermore, defense counsel, in closing statements, offered numerous
    points in mitigation and did not limit his argument to evidence presented only in
    the defense phases of the trial. In addition, nothing in the instructions given to the
    204
    jury stated that it should ignore mitigation evidence offered by the prosecution. In
    fact, the challenged instruction began by informing the jury that it should
    “consider all of the evidence which has been received during the guilt phase of this
    trial” that was relevant to mitigation. Finally, in response to a jury question during
    deliberations, the trial court stated that “[e]vidence of the circumstances of the
    crimes of which defendant was convicted, and the finding of the special
    circumstances in the guilt phase may be considered in the penalty phase insofar as
    such evidence is relevant to factors in aggravation or mitigation.” (Italics added.)
    Under these circumstances, the jury could not have interpreted the instruction in
    the manner defendant argues.
    In a related claim, defendant contends the trial court’s response to the jury,
    which asked whether it could consider evidence from the whole trial during the
    penalty phase, improperly limited its consideration of mitigating circumstances.
    Defendant has forfeited this claim by failing to seek clarification at trial of this
    additional instruction. Regardless, the claim is without merit.
    Although the court’s imprecise response stated that the jury “may view
    factors, (a), (b), and (c) as aggravating and/or mitigating” and that “[a]ll other
    specifically enumerated factors listed on pages 17 and 18 must be considered as
    possible mitigating factors,” the court also stated that the final listed factor, the
    equivalent of factor (k), “is a ‘catch-all’ mitigating section” and that “[i]n addition
    to the specifically enumerated mitigating factors and the catch-all mitigating
    [factor], you may for the defendant consider pity, sympathy and mercy and
    lingering doubt.” By referring to section 190.3, factor (k)’s catchall provision, the
    court clearly reminded the jury that it could consider as mitigation “[a]ny other
    circumstance which extenuates the gravity of the crimes” or “any sympathetic or
    205
    other aspect of the defendant’s character.” The additional instruction, therefore,
    did not improperly narrow the jury’s consideration of mitigating circumstances.63
    5. Defendant’s Good Behavior During Trial
    Defendant claims the trial court erred and violated his Eighth Amendment
    right to have the jury consider mitigating evidence by instructing the jury, during
    the guilt phase, to ignore reactions to the evidence by the parties, including
    defendant. He claims the jury improperly imported this instruction into the
    penalty phase, thereby ignoring defendant’s good demeanor as a circumstance in
    mitigation. We disagree.
    The complained-of guilt phase instruction stated: “The reactions to
    evidence introduced during the trial, if any, by the judge, court personnel,
    attorneys, defendant, or any spectator do not constitute evidence and cannot be
    considered. If you have observed any such courtroom reactions, it is your duty to
    disregard the observations.”
    63      Defendant also argues, for the first time on appeal, that this additional
    instruction and other supplemental instructions the court gave in response to the
    jury’s inquiries during deliberations should have been orally read to the jury
    instead of being submitted to the jury only in writing. We have previously
    rejected a related claim that the trial court erred by supplying the jury with written
    transcripts instead of reading back the testimony in open court. This is because
    “[s]ection 1138 requires the testimony to be furnished” but the statute does not
    specify the form in which it should be furnished, and the form “i.e., written or oral,
    is apparently in the trial court’s discretion.” (People v. Box (2000) 
    23 Cal.4th 1153
    , 1214.) Because section 1138 also applies to the jury’s “ ‘desire to be
    informed on any point of law arising in the case’ ” (id. at p. 1213), it also was
    within the court’s discretion whether to orally instruct the jury in addition to
    providing written clarification. Defendant fails to explain how the absence of oral
    supplemental instructions prejudiced his case and denied his rights to due process
    and a fair trial. Thus, in addition to being forfeited, defendant’s claim fails on its
    merits.
    206
    Defendant forfeited this claim by failing to raise it in the trial court.
    Forfeiture aside, even assuming the jury applied this instruction at the penalty
    phase, nothing in the instruction precluded the jury from considering defendant’s
    good demeanor during the nearly year-long trial. Instead, the instruction merely
    told the jury to ignore any “reactions to evidence.” Moreover, defense counsel
    was specifically permitted to argue to the jury that defendant’s respect for
    authority supported a life sentence as demonstrated by “his behavior day in and
    day out in this courtroom for many months” which was “what you have seen.”
    Accordingly, there was no error.
    6. Aggravating and Mitigating Circumstances and the Weighing of
    “Good and Bad”
    Defendant claims the trial court erred and violated his state and federal
    rights and his right to due process under the Fourteenth Amendment by refusing to
    give his proffered instruction elaborating on the weighing of aggravating and
    mitigating circumstances. He claims that, without this instruction, the jury may
    have imposed a death sentence because it improperly determined that there is more
    bad than good about the defendant and his crimes. The trial court properly refused
    the instruction.
    The defense requested the following instruction: “The weighing of
    mitigating and aggravating factors is not a weighing or balancing between good
    and bad, but between life and death.” The trial court correctly rejected this
    instruction as being vague and taken out of context from our decision in People v.
    Brown (1985) 
    40 Cal.3d 512
     (Brown).
    In Brown, we rejected the claim that the death penalty statute impermissibly
    limits “the jury to a mechanical balancing of aggravating and mitigating factors.”
    (Brown, supra, 40 Cal.3d at p. 538.) In upholding the death penalty statute as not
    requiring “a death verdict on the basis of some arithmetical formula” (id. at p. 540)
    207
    we noted that the terms “ ‘[a]ggravating’ and ‘mitigating’ are not defined by the
    statute” but explained that “we see no statutory intent to require death if the jury
    merely finds more bad than good about the defendant and to permit life without
    parole only if it finds more good than bad.” (Id. at p. 541, fn. 13.) We further
    explained, “the statute requires at a minimum that he suffer the penalty of life
    imprisonment without parole. It permits the jury to decide only whether he should
    instead incur the law’s single most severe penalty — extinction of life itself.
    [Citation.] It follows that the weighing of aggravating and mitigating
    circumstances must occur within the context of those two punishments; the
    balance is not between good and bad but between life and death. Therefore, to
    return a death judgment, the jury must be persuaded that the ‘bad’ evidence is so
    substantial in comparison with the ‘good’ that it warrants death instead of life
    without parole.” (Ibid., citing § 190.3.)
    We did not intend the above explanation to serve as necessary instruction in
    capital cases; rather, we were rejecting the argument that the death penalty statute
    requires a mechanical balancing to determine whether a verdict of death should be
    imposed. More important, defendant’s proffered instruction did not include the
    last sentence quoted above. Without that last sentence, defendant’s proposed
    instruction was vague.
    In any event, Brown rejected essentially the same claim defendant raises
    here. The wording of the death penalty statute makes it sufficiently clear that a
    jury does not perform “a mere mechanical counting of factors on each side of the
    imaginary ‘scale,’ or the arbitrary assignment of ‘weights’ to any of them.”
    (Brown, supra, 40 Cal.3d at p. 541.) No further definition of “ ‘aggravating’ ” or
    “ ‘mitigating’ ” was required. (People v. Williams, 
    supra,
     16 Cal.4th at p. 267
    [“ ‘aggravating’ and ‘mitigating’ are commonly understood terms that need not be
    defined for the jury”].)
    208
    7. Instruction on the Consequences of Deadlocked Jury
    Defendant contends the trial court erred by answering the jury’s question
    about the effect of a deadlocked jury and instructing the jurors with this part of the
    statutory language of section 190.4, subdivision (b): “[I]f the trier of fact is a jury
    and has been unable to reach a unanimous verdict as to what the penalty shall be,
    the court shall dismiss the jury and shall order a new jury impaneled to try the
    issue as to what the penalty shall be.”
    We have previously found no error when the trial court refuses the defense
    request to instruct the jury about the effect of a deadlock.64 (People v. Gurule
    (2002) 
    28 Cal.4th 557
    , 648; People v. Memro (1995) 
    11 Cal.4th 786
    , 882; People
    v. Rodrigues (1994) 
    8 Cal.4th 1060
    , 1193.) In People v. Belmontes (1988) 
    45 Cal.3d 744
    , 814 (Belmontes), we rejected a claim that the trial court should have
    answered the jury’s question by instructing it consistent with language from
    section 190.4, explaining that it “would have the potential for unduly confusing
    and misguiding the jury in their proper role and function in the penalty
    determination process” and that “[a]ny further instruction along the lines
    suggested herein could well serve to lessen or diminish that obligation in the
    jurors’ eyes.” Defendant claims that Belmontes establishes that the trial court
    erred by instructing the jury in the language of section 190.4, even though
    defendant did not object to the trial court’s using that language.
    64      In a related claim, defendant argues that the jury committed misconduct in
    discussing the consequences of a deadlock and that the trial court erred by failing
    to inquire into this alleged misconduct. But jurors having difficulty during
    deliberations would naturally be curious about the consequences of their deadlock,
    and this circumstance, by itself, cannot be considered misconduct. More
    important, instead of relying on speculation or extrinsic information, the jury
    dutifully expressed its concern by asking the court about this scenario. In this
    situation, the court addressed the jury’s question and had no obligation to inquire
    further.
    209
    The Attorney General, however, argues that there was no error and cites
    People v. Waidla (2000) 
    22 Cal.4th 690
    , 746 (Waidla), in which we “agree[d] that,
    as a general matter, the superior court may instruct a deliberating jury in response
    to a request going to the consequences of its inability to reach a unanimous verdict
    as to penalty.” We explained, however, that “we cannot agree that, in this cause,
    the superior court had to do so” under the federal Constitution. (Waidla, at
    p. 746.) Thus, Waidla would seem to suggest that instruction based on section
    190.4, subdivision (b) is permissible, but not required.
    We excuse defendant’s failure to object to the instruction quoting section
    190.4 because the instruction affected his substantial rights. (§ 1259; People v.
    Foster (2010) 
    50 Cal.4th 1301
    , 1346, fn. 20.) Moreover, given the tension
    between Belmontes and Waidla, we assume, without deciding, that it was error for
    the court to instruct the jury with section 190.4, subdivision (b). We note,
    however, that the complained-of instruction did not improperly make “reference to
    the expense and inconvenience of a retrial.” (People v. Gainer (1977) 
    19 Cal.3d 835
    , 852, fn. 16.)
    But any error was not prejudicial. After quoting the relevant part of section
    190.4, subdivision (b), the court explained, “The issue of what happens next in the
    event of a deadlock is a matter that should not concern you nor should it enter into
    your deliberations in any way.” In the absence of evidence to the contrary, we
    assume the jury followed this instruction. (People v. Yeoman (2003) 
    31 Cal.4th 93
    , 139.)
    8. Other Claims of Instructional Error
    Defendant raises a number of claims of penalty phase instructional error
    that we have previously rejected.
    210
    The trial court is not required to instruct the jury that there is no burden of
    proof. (People v. Taylor (2009) 
    47 Cal.4th 850
    , 899.) The trial court did not err in
    refusing to instruct the jury to consider sympathy for defendant’s family as a
    mitigating factor. (People v. Ochoa, supra, 19 Cal.4th at pp. 454-456.)
    The trial court properly refused defendant’s instruction that possible belief
    or predictions about a defendant’s future dangerousness are not to be considered
    for any purpose because the standard jury instructions do not permit “the jury to
    believe defendant’s future dangerousness could be an aggravating factor” (People
    v. Weaver (2001) 
    26 Cal.4th 876
    , 993), and the prosecution presented no otherwise
    inadmissible expert opinion evidence on this subject (People v. Murtishaw (1981)
    
    29 Cal.3d 733
    , 767).
    E. Other Claims
    1. Defendant’s Absence During an In Camera Hearing
    Defendant argues the trial court erred by excluding him from a hearing to
    discuss the testimony of a defense psychologist. Defendant claims the error
    violated his federal due process and his state statutory rights to be present at the
    proceedings against him, and he also claims the error created a conflict of interest
    with his defense counsel that deprived him of his state and federal rights to due
    process and effective representation of counsel. He further claims his absence
    resulted in unreliable capital proceedings in violation of the Eighth Amendment.
    There was no error because defendant clearly and knowingly waived his presence
    at the hearing in question, and his absence did not create a conflict of interest.
    a) Background
    Defense witness Dr. Alvin Marks, a clinical and forensic psychologist,
    testified at the penalty phase, giving his diagnosis of defendant as having
    inadequate personality, mixed personality disorder, and personality disorder not
    211
    otherwise specified. During the prosecution’s cross-examination of him,
    Dr. Marks revealed that he learned about defendant’s history from a chronological
    report prepared by a defense investigator. Later, the prosecution noted that it had
    not received this report during discovery and asked the defense to provide a copy
    of it. Defense counsel claimed the report was attorney work product and
    implicated the attorney-client privilege. Counsel later explained that the report,
    containing attorney “editorial comments,” had been inadvertently provided to
    Dr. Marks. Dr. Marks, however, had made his diagnoses of defendant before
    receiving that report and had not otherwise relied on it.
    The trial court noted that the prosecution’s discovery request had created a
    “large problem” and asked the prosecution if discovery was really necessary.
    When the prosecution questioned the nature of the problem, the court stated it
    would like to address the matter in chambers without defendant and asked whether
    he would waive his presence. After defendant consulted with his attorneys,
    appellant waived his right to be present. The court also had on file defendant’s
    earlier executed written waiver that covered any absences defendant agreed to
    during trial.
    At the in camera hearing, the trial court expressed concern that Dr. Marks’s
    receipt of the chronological report could later be raised as a claim of
    constitutionally inadequate assistance of counsel. In order to prevent the jury from
    hearing damaging evidence as a result of defense counsel’s mistake, the court
    ruled that the chronological report could not be used. At this same hearing, the
    court also resolved a scheduling problem concerning the prosecution’s expert
    witness, Dr. R.M. Schumann, who had diagnosed defendant while he was
    incarcerated at Atascadero State Hospital for his prior rape conviction. Because
    Dr. Schumann would not be available for another week, the court asked the parties
    if they could agree whether the substance of his testimony could be captured by a
    212
    stipulation. After the in camera hearing, the parties and defendant reappeared in
    open court, and defense counsel announced that the parties had agreed to a
    stipulation to substitute for Dr. Schumann’s testimony. That stipulation stated that
    Dr. Schumann, a psychiatrist, had diagnosed defendant, in 1974 at Atascadero
    State Hospital, as having “an antisocial personality — severe, alcoholism, habitual
    excessive drinking, and a sexual deviation, aggressive sexuality, and the prognosis
    was very guarded.”65
    b) Analysis
    Defendant clearly and knowingly waived his right to be present at this in
    camera hearing. Despite the court’s characterization of the discovery issue as a
    “large problem,” defendant elected not to participate in the hearing after
    consultation with his counsel. Defendant, on the record, voiced his agreement to
    be absent, as he did on several other occasions during trial, and his written waiver
    was on file. This complied with the statutory requirements to waive personal
    presence during trial (§ 977, subd. (b)(1)), and we reject, as we have before,
    65      In another claim, defendant challenges the trial court’s instruction
    following the reading of this stipulation in which the court told the jury, “that’s a
    stipulated matter . . . it’s not a matter that you have to decide. It’s given to you as
    a fact.” Defendant claims this admonition failed to distinguish between a matter
    of evidence (i.e., that Dr. Schumann would testify that he examined defendant and
    diagnosed him) and a matter of fact (i.e., that defendant does have antisocial
    personality with sexual aggressions and deviances). He claims the admonition
    allowed the jury to believe that defendant did in fact suffer from these mental
    disorders in violation of his state and federal rights to due process, trial by jury,
    confrontation and counsel and the reliability of the capital proceedings under the
    Eighth Amendment and the14th Amendment’s due process clause. But defendant
    forfeited this issue by failing to request clarification of the admonition. (People v.
    Catlin, 
    supra,
     26 Cal.4th at p. 149.)
    213
    defendant’s claim that waivers of personal presence should not be allowed in
    capital cases (People v. Price (1991) 
    1 Cal.4th 324
    , 405).
    In addition, defendant’s absence did not create or exacerbate a conflict of
    interest with his defense counsel or require that defendant be advised by other
    counsel. Defendant argues that his counsel’s mistake in giving Dr. Marks the
    chronological report created grounds for a claim of constitutionally deficient
    assistance and that he should have been present and/or advised by nonconflicted
    counsel about whether he should challenge the performance of his attorneys. But
    the in camera hearing itself resolved any mistake made by defense counsel by
    precluding the admission and discovery of the chronological report. Thus, the
    court eliminated the potential prejudicial effect of any mistake by defense counsel.
    Nor did defense counsel’s mistake, or the subsequent in camera hearing, result in
    the jury hearing evidence of Dr. Schumann’s prior 1974 diagnosis of defendant.
    Independent of the discovery issue concerning the chronological report, the court
    had earlier ruled in defendant’s presence that Dr. Schumann’s prior diagnosis was
    admissible because defendant had placed his mental state at issue. At the in
    camera hearing, from which defendant was absent, the court merely discussed
    logistical issues concerning Dr. Schumann’s testimony.
    Consequently, defendant fails to show how his absence affected his ability
    to defend himself or otherwise prejudiced his case.
    2. Failure to Repeat Admonition for Jurors Not to Form or Express
    Any Opinion Until the Case Is Submitted to Them
    Defendant argues the trial court erred by failing to repeat, in the 19-day
    period between the end of the guilt phase and before the start of the penalty phase,
    the admonition required by section 1122, subdivision (b), which requires the court
    to admonish the jurors not to form or express any opinion concerning the case
    until the matter is submitted to them. He claims the error violated his state and
    214
    federal rights to due process, fair trial by jury, and verdict reliability. There was
    no error because the court gave the admonition on the first day of the penalty
    phase trial.
    Defendant’s argument rests on the premise that, because jurors were given
    the relevant admonition during the guilt phase, the failure to repeat that
    admonition after the filing of the guilt phase verdict, by implication, allowed
    jurors to speculate about the case during the 19-day period before the penalty
    phase began. But defendant has forfeited this issue by failing to request such an
    instruction as part of the postverdict instructions. (People v. Catlin, 
    supra,
     26
    Cal.4th at p. 149.) In any event, defendant points to no evidence in the record
    showing that jurors improperly formed or expressed opinions about the matter
    during the 19-day break. In addition, defendant acknowledges that the court
    complied with the relevant part of section 1122 on the first day of the penalty
    phase trial by again admonishing the jurors “not to form or express any opinion”
    about the matter and to “avoid this temptation at all cost” despite having been
    previously able to discuss the case amongst themselves during the guilt phase
    deliberations.
    Under these circumstances, there was no error.
    3. Requestioning the Jury Before the Penalty Phase
    Defendant asserts the trial court erred by failing to grant his request to
    impanel a new jury for the penalty phase or, alternatively, to requestion the
    existing jurors concerning whether they could judge defendant’s penalty fairly
    despite knowing evidence of the Strang and Fisher murders on which the jury had
    hung. He claims this alleged error violated his state and federal constitutional
    rights to explore potential bias, due process, and to an impartial jury and a reliable
    penalty determination under state statutory law and the Sixth, Eighth, and
    215
    Fourteenth Amendments. The court properly denied defendant’s motions, and,
    instead, instructed the jury not to consider these other murders.
    We have previously recognized that section 190.4, subdivision (c), states
    the Legislature’s clear intent to have the same jury adjudicate both guilt and
    penalty in capital cases, “ ‘unless for good cause shown the court discharges that
    jury in which case a new jury shall be drawn.’ ” (People v. Rowland, 
    supra,
     4
    Cal.4th at p. 267, quoting § 190.4, subd. (c).) We have also previously held that
    “good cause” does not exist to impanel a new jury or to re-voir dire the jury if
    based solely on speculation (People v. Ainsworth (1988) 
    45 Cal.3d 984
    , 1029), and
    that acquittal of a charge at the guilt trial does not constitute “good cause” to
    impanel a new jury (People v. Bonillas (1989) 
    48 Cal.3d 757
    , 786). To hold
    otherwise would thwart the statutory preference for having the same jury in both
    trials because “[i]t is commonplace for a defendant in a capital case to be tried on
    multiple charges.” (Ibid.)
    Defendant contends he showed good cause because of the unique
    circumstance of the jury deadlocking on the counts for the Strang and Fisher
    murders by a vote of 11 to one in favor of convicting defendant. He argues that
    these 11 jurors were unlikely to be able to disregard the grisly evidence
    surrounding those murders, especially because many of the exhibits brought to the
    jury deliberations room contained photos and other evidence from all of the
    charged crimes. But defendant cites no authority for the proposition that the
    penalty phase jury cannot consider evidence of crimes for which it could not reach
    a verdict at the guilt phase. (Cf. People v. Stitely (2005) 
    35 Cal.4th 514
    , 563
    [“Section 190.3 expressly permits proof of any violent criminal activity, whether
    or not it led to prosecution and conviction, except as to any offense resulting in an
    acquittal”].)
    216
    In any event, the trial court specifically instructed the jury not to “consider
    any evidence produced at the guilt phase with respect to the victims Gayle Garcia,
    Rhonda Strang, and Amber Fisher” as being relevant “factors in aggravation or
    mitigation.” When the issue was later raised by a jury question during the penalty
    phase deliberations, the court stated that “no evidence relating to the Garcia and
    Strang-Fisher cases may be considered by you in the penalty phase.” Defendant
    argues that these admonitions were insufficient because they did not direct the
    jurors to set aside their impressions of defendant’s overall guilt or moral
    culpability or their desire to seek retribution for the murders of Strang or Fisher.
    But defendant has forfeited this issue by failing to request such additional
    clarification (People v. Catlin, 
    supra,
     26 Cal.4th at p. 149), and, in any event, the
    instructions given were clear and could not have allowed the jurors to think that
    they could nonetheless consider evidence of the Strang and Fisher murders for
    some emotional or moral purpose.
    Finally, although defendant speculates otherwise, we presume the jury
    followed the court’s repeated instructions not to consider evidence of the Strang
    and Fisher murders in its penalty phase deliberations.66 (People v. Yeoman, 
    supra,
    31 Cal.4th at p. 139.)
    66      For this same reason, we reject defendant’s claim that the jury improperly
    received extrinsic evidence during deliberations because the exhibits for the
    Garcia, Strang, and Fisher murders were not redacted or separated from the
    combined exhibits for all of the charged crimes. In any event, defendant forfeited
    this issue because defense counsel agreed that the exhibits could not be separated
    and agreed that court’s admonitions were sufficient to direct the jury not to
    consider those portions of the exhibits.
    217
    F. Jury Deliberations
    1. Asserted Coercion of the Jury
    Defendant takes issue with how the trial court handled the jury’s
    announcements that it was deadlocked on the second and third days of its penalty
    phase deliberations. He argues that the court failed to properly inquire concerning
    the nature of the deadlock, made an improper reference to the length of the trial in
    directing the jury to resume deliberations, and failed to inform jurors to follow
    their individual consciences in reaching a verdict. He claims these asserted errors
    coerced the jury in violation of his state and federal constitutional rights to a fair
    and impartial jury, due process, and his Eighth Amendment right to a reliable
    penalty determination. There was no coercion of the jury.
    a) Background
    On its second day of deliberations, after nearly four hours of deliberation,
    the jury sent the trial court a note, signed by the foreperson, stating that “it is the
    feeling of the jury that a unanimous decision is not possible.” The court rejected
    defendant’s motion for a mistrial and his request that the court inquire about
    whether further deliberations could be helpful. The court then addressed the jury,
    stating:
    “The length and complexity of this case, the complexity of the facts and the
    instructions are such that I would ask that you attempt to deliberate a little further
    and that each of you examine your opinions in view of the other jurors’ opinions.
    That each of you examine the instructions in light of all the instructions together,
    and attempt to make sure that you do understand each other’s opinions fully and
    completely, and we will resume this afternoon. [¶] I will ask that you attempt
    once again, if it is possible, and we will certainly respect if you have another note
    that says you can’t do it. And if you can’t do it, you can’t, and certainly no juror
    218
    should feel pressure. No group of jurors should feel pressure, but we do wish that
    you would make every attempt, if you can.”
    The jury resumed deliberations for just over another two hours. On the
    following morning, after an additional half-hour of deliberation, the trial court
    received a note, signed by the foreperson, asking for help from the court. The note
    indicated that some jurors believed that, if the jury could not reach a verdict,
    defendant would automatically receive a life sentence, and it inquired what would
    actually occur if the jury deadlocked. The note also stated that “[s]ome jurors
    have made their decisions and feel that we should go home because no further
    progress is possible” but also that “[s]ome jurors feel that further progress is
    possible with direction from the Court.” The court again denied defendant’s
    motions for a mistrial and to make an inquiry to determine which jurors felt further
    deliberations would not be useful. In denying the defense requests, the court
    observed that the time the jury had spent deliberating had not been proportional to
    the length of the trial.
    The court then answered the jury’s question concerning the effect of
    deadlock (see ante, at p. 209) and, later on, additional questions concerning what
    evidence the jury could consider in determining the appropriate penalty (see ante,
    at p. 205).
    b) Analysis
    The trial court may ask jurors to continue deliberating when there is a
    “reasonable probability” of agreement, and that determination rests in the
    discretion of the court. (§ 1140; see People v. Breaux (1991) 
    1 Cal.4th 281
    , 319.)
    “The court must exercise its power, however, without coercion of the jury, so as to
    avoid displacing the jury’s independent judgment ‘in favor of considerations of
    compromise and expediency.’ ” (People v. Breaux, 
    supra, at p. 319
    , quoting
    219
    People v. Carter (1968) 
    68 Cal.2d 810
    , 817.) “Any claim that the jury was
    pressured into reaching a verdict depends on the particular circumstances of the
    case.” (People v. Pride (1992) 
    3 Cal.4th 195
    , 265.)
    Defendant first complains that the trial court failed to inquire into the nature
    of the deadlock. Given that the jury had deliberated less than four hours before
    sending its first note and less than seven hours before its second note, the court did
    not abuse its discretion by declining to inquire into the jury’s numerical division.
    Although the court may make such an inquiry (People v. Proctor (1992) 
    4 Cal.4th 499
    , 538), it is not required to do so.
    Defendant next asserts that the court improperly coerced the jury by stating
    that “[t]he length and complexity of this case . . . are such that I would ask you to
    deliberate a little further.” But the court’s comments contained no suggestion of
    coercion, and, instead, principally conveyed “that the jury had not deliberated for a
    sufficient time relative to the complexity of the case.” (People v. Breaux, 
    supra,
     1
    Cal.4th at p. 320.) The comments contained no impermissible “reference to the
    expense and inconvenience of a retrial.” (People v. Gainer, supra, 19 Cal.3d at
    p. 852, fn. 16.)
    Finally, defendant argues that the trial court erred by refusing his request to
    remind the jurors that they were required to reach an individual opinion and not
    take any cue from the court, and he claims the court improperly directed the
    minority jurors to reexamine their views. We have never required that jurors be
    readvised after they have already been instructed to reach individual opinions and
    not take cues from the court. Moreover, nothing in the court’s comments called on
    minority jurors to reexamine their views, and defendant fails to identify language
    that allegedly did so. Instead, the court asked the jurors to examine their opinions
    in light of other jurors’ opinions and to understand each other’s opinions. The
    220
    court further urged the jurors not to be pressured. The court’s comments were
    proper.
    2. Asserted Jury Tampering
    Defendant contends the trial court tampered with the jury by investigating
    whether it was viewing guilt phase exhibits during the penalty phase deliberations
    and then giving the jury a biased supplemental instruction. He claims the errors
    violated his state and federal rights to due process and fair trial by jury, his Eighth
    Amendment and due process right to a reliable determination of penalty, and his
    federal rights of confrontation, compulsory process, and representation of counsel.
    There was no error.
    a) Background
    After the court addressed the jury’s first two notes, the jury sent a third
    note, which it revised when the court asked for clarification of one of its questions.
    As relevant, the revised question asked, “Does evidence from the whole trial
    pertain to juror decisions during penalty phase or just evidence from penalty phase
    may be used?” The court responded:
    “Evidence of the circumstances of the crimes of which defendant was
    convicted, and the finding of the special circumstances in the guilt phase may be
    considered in the penalty phase insofar as such evidence is relevant to factors in
    aggravation or mitigation. Such evidence may be considered in the penalty phase
    just as if it had been presented in the penalty phase. [¶] The exception is that no
    evidence relating to the Garcia and Strang-Fisher cases may be considered by you
    in the penalty phase.”67
    67     In another claim of instructional error, defendant asserts, for the first time
    on appeal, that this instruction impermissibly limited the jury’s consideration of
    mitigating evidence to “circumstances of the crime” instead of evidence of
    (Footnote continued on next page.)
    221
    After sending the jury back for further deliberations, that same day the
    court called the parties into court and the judge explained that she had asked her
    bailiff about the condition of the deliberations room. According to the judge, the
    bailiff reported that the guilt phase exhibits all remained in the file drawers, where
    they had been put after the guilt phase trial, suggesting that the jurors had not
    examined the exhibits during their penalty phase deliberations. The judge
    expressed concern to the parties about whether her prior response to the jury had
    been adequate and proposed giving further instruction. Defense counsel objected
    to the bailiff’s observations as constituting an invasion of the jury’s province and
    objected to any further instruction. According to the judge, by the end of the day,
    it still appeared that none of the guilt phase exhibits had been accessed. The court
    also rejected defense counsel’s request to allow the parties to inspect the
    deliberations room.
    The next day, the court informed the parties that the bailiff had noted that
    perhaps one guilt phase exhibit had been moved in the file drawers. Defendant
    made numerous objections to the court’s proposed further instruction, arguing,
    among other things, that it would communicate the court’s belief that the exhibits
    were relevant, would emphasize exhibits concerning the Garcia, Strang, and Fisher
    murders, and that the jury had a right not to consider exhibits it had already
    (Footnote continued from previous page.)
    lingering doubt and aspects of defendant’s character otherwise unrelated to the
    crimes. But this supplemental instruction was given along with the other
    supplemental instruction reminding the jurors of the factor (k) “catch-all”
    mitigating section that allowed the jury to consider any other extenuating
    circumstances and defendant’s character. (§ 190.3, factor (k); see ante, at p. 205.)
    Viewed in context with the catchall instruction, this complained-of instruction
    could not have had the effect that defendant contends.
    222
    considered in the guilt phase. The court overruled the objections and instructed as
    follows: “A matter of clarification. In case there is any question, the jury should
    understand it has access to the following during deliberations at the Penalty Phase:
    [¶] Jury Instructions, Jurors’ Notes, Exhibits, and Verdict Forms from the Penalty
    Phase. [¶] Jury Instructions, Jurors’ Notes, and Exhibits from the Guilt Phase.
    (Except: The Jury must exclude from consideration those Guilt Phase Instructions,
    Notes and Exhibits relating to the Garcia and Strang-Fisher cases.) [¶] The jury
    may also request from the court: (1) answers to legal questions, and (2) transcripts
    of testimony as needed.”
    b) Analysis
    Defendant claims the trial court improperly invaded the province of the jury
    by examining the deliberations room. But the court merely asked the bailiff his
    observations of the deliberations room made during his regular duties of cleaning
    it. The bailiff made no communications to the jury about the case or the law, nor
    did the bailiff or the court intrude on the jurors’ mental processes. The
    observation that the guilt phase exhibits had not been moved merely generated the
    inference that the jury was not using those exhibits — an inference made more
    reasonable given the jury’s apparent confusion about whether it could consider
    guilt phase evidence in the penalty phase.
    Defendant also contends that the trial court’s supplemental instruction
    improperly emphasized the guilt phase exhibits and improperly communicated the
    trial court’s opinion that the guilt phase exhibits were important. Yet the court’s
    supplemental instruction did not emphasize the exhibits in particular, but instead
    reminded the jurors that they could consider not only the exhibits, but also the
    instructions, their notes, verdict forms, transcripts, and the court’s responses to
    their questions. Nothing in the language of the complained-of instruction had the
    223
    effect of emphasizing the exhibits or communicating that the court believed the
    exhibits were of unique importance.
    Finally, defendant argues the trial court violated his constitutional rights to
    confrontation and due process in relying on the court’s and the bailiff’s
    observations of the jury room without allowing defense counsel the opportunity
    for cross-examination or to inspect the deliberations room. Defendant has
    forfeited this issue by failing to object based on the confrontation clause. In any
    event, that provision of the “Sixth Amendment guarantees the right of an accused
    in a criminal prosecution ‘to be confronted with the witnesses against him.’ ”
    (Delaware v. Van Arsdall, supra, 475 U.S. at p. 678.) The judge and the bailiff
    were not witnesses against defendant. Instead, they merely communicated their
    observations of the deliberations room as part of their supervisory role over jury
    deliberations.
    3. Death of a Juror’s Father
    Defendant asserts two claims associated with Juror P.W.’s request during
    deliberations to be excused from the proceedings to attend her father’s funeral.
    First, defendant claims the court erred by failing to notify his counsel about the
    juror’s request, which he claims violated his state and federal constitutional rights
    to counsel, due process, and his Eighth Amendment right to a fair and reliable
    sentencing proceeding. Second, defendant contends the court erred and abused its
    discretion by failing to inquire whether the juror was capable of continuing
    deliberations, which he claims violated his state and federal constitutional rights to
    a fair and impartial trial, due process, and his Eighth Amendment right to a fair
    and reliable sentencing proceeding. These contentions have no merit.
    Defendant’s asserted lack of notice concerning Juror P.W.’s request is not
    supported by the record. On Monday, Juror P.W. sent a note to the court
    224
    explaining that her father had died over the weekend and advising that his funeral
    would be sometime that week and that she would let the court know once the date
    was set. The clerk’s minutes state that the note was incorporated as part of court
    exhibit No. 32, but that “[c]ounsel are not notified at this time.” The following
    Tuesday morning, the court received notes from two other jurors asking to be
    excused early on Thursday and to have Friday off. One of the notes was from the
    foreperson, who also remarked that Friday “may be good for the other jurors to
    have an extra day off.” The clerk’s minutes indicate that the notes were
    incorporated into court exhibit No. 32 and that “counsel are notified of the notes
    and agree that the jury need not deliberate on Friday.” That same morning, the
    court received a note from the foreperson informing the court that the funeral for
    Juror P.W.’s father was on Friday and that she asked to be excused that day.
    Under these circumstances, it appears from the record that defense counsel
    were informed of Juror P.W.’s note and her father’s death. The clerk’s minutes
    show that counsel were informed of “notes” the court had received, and there is no
    reason to believe that this reference was limited to the notes received Tuesday
    morning and excluded Juror P.W.’s note dated on Monday. In any event, in the
    absence of any contrary indication in the record, we “assume the court followed
    established law by contacting trial counsel and affording them an opportunity to
    respond before communicating with the jury.” (People v. Carter, 
    supra,
     30
    Cal.4th at p. 1215.) Defendant bore the burden of developing a record sufficient
    to ensure review of his claim, and he could have sought a settled statement to
    clarify whether he received notice. (Ibid., citing People v. Osband (1996) 
    13 Cal.4th 622
    , 663.) He did not.
    Defendant further claims that the death of a juror’s parent during
    deliberations may be good cause to discharge the juror and that the court abused
    its discretion in failing to inquire whether Juror P.W. could continue to deliberate.
    225
    As defendant observes, we have acknowledged that “[t]he death of a juror’s parent
    constitutes good cause to discharge the juror if it affects the juror’s ability to
    perform his or her duties” and that such good cause invokes the court’s duty to
    inquire whether the juror should be discharged. (People v. Cunningham, 
    supra,
     25
    Cal.4th at p. 1029.) But we have also recognized that “[a]lthough such inquiry is
    preferred, it is not required.” (People v. Beeler (1995) 
    9 Cal.4th 953
    , 989.) To be
    sure, it is wrong to assume that “a more detailed inquiry by the court would have
    served no purpose,” because such an inquiry could have provided insight into
    Juror P.W.’s state of mind and whether the court abused its discretion by allowing
    her to continue to deliberate. (Ibid.) But in Beeler, we rejected the assumption
    that “as a matter of law that the death of a juror’s parent is so debilitating that the
    juror is presumptively unable to deliberate.” (Id. at p. 990.)
    In the circumstances here, an inquiry was not mandatory. Juror P.W. gave
    no indication that she sought to be discharged or that she felt coerced to reach a
    speedy verdict. Nothing suggests the remainder of the jury felt compelled to reach
    a speedy verdict to accommodate Juror P.W. The jury deliberated for two weeks
    following the penalty phase closing arguments. In fact, the jury deliberated for
    more than two full days following the Friday recess. There is no indication that
    the court abused its discretion or that defendant was prejudiced by the lack of
    further inquiry.
    G. Asserted Unconstitutionality of the Death Penalty Statute
    Defendant raises numerous constitutional challenges to California’s death
    penalty law, all of which we have repeatedly rejected for lack of merit.
    California’s death penalty law “adequately narrows the class of murderers
    subject to the death penalty” and does not violate the Eighth Amendment. (People
    v. Loker, 
    supra,
     44 Cal.4th at p. 755.)
    226
    Section 190.3, factor (a), in allowing the jury to consider the circumstances
    of the crime, does not result in the arbitrary or capricious application of the death
    penalty. (People v. Stevens (2007) 
    41 Cal.4th 182
    , 211.)
    The federal Constitution does not require the jury to achieve unanimity as
    to the aggravating circumstances or that it be given a burden of proof or standard
    of proof instructions for finding the existence of aggravating factors, finding that
    aggravating factors outweigh mitigating factors, or finding that death is the
    appropriate penalty. (People v. Loker, 
    supra,
     44 Cal.4th at p. 755.) The United
    States Supreme Court decisions in Apprendi v. New Jersey (2000) 
    530 U.S. 466
    ,
    Ring v. Arizona (2002) 
    536 U.S. 584
    , and Blakely v. Washington (2004) 
    542 U.S. 296
    , do not compel a different result. (Loker, at p. 755.)
    A jury in a capital case is not required to make written findings in support
    of its verdict. (People v. Stevens, 
    supra,
     41 Cal.4th at p. 212.)
    Intercase proportionality review is not required under either the state or
    federal Constitution. (People v. Loker, 
    supra,
     44 Cal.4th at p. 755; People v.
    Crittenden, 
    supra,
     9 Cal.4th at pp. 156-157.)
    A penalty phase jury properly may consider a defendant’s unadjudicated
    criminal activity, and it need not instruct the jury that it could consider the
    unadjudicated criminal activity only if it unanimously found such crimes had been
    proved beyond a reasonable doubt. (People v. Barnwell (2007) 
    41 Cal.4th 1038
    ,
    1059; People v. Hoyos (2007) 
    41 Cal.4th 872
    , 927.)
    The use of restrictive adjectives, such as “extreme” and “substantial,” in
    section 190.3’s list of potential mitigating factors does not render it
    unconstitutional. (People v. Stevens, 
    supra,
     41 Cal.4th at p. 213.)
    A penalty phase jury need not be instructed regarding which factors are
    aggravating and which are mitigating or to restrict its consideration of the
    227
    evidence to such factors. (People v. Barnwell, 
    supra,
     41 Cal.4th at p. 1059;
    People v. Brown, supra, 33 Cal.4th at p. 402.)
    Capital defendants and noncapital defendants are not similarly situated,
    therefore, the death penalty law does not violate equal protection or the Eighth
    Amendment by denying capital defendants various procedural rights given to
    noncapital defendants. (People v. Loker, 
    supra,
     44 Cal.4th at p. 756.)
    Finally, we again reject the contention that the death penalty violates
    international law or is contrary to international norms or that these norms require
    the application of the penalty to only the most extraordinary crimes. (People v.
    Martinez (2010) 
    47 Cal.4th 911
    , 968.)
    H. Asserted Cumulative Error Affecting the Reliability of Defendant’s
    Sentencing Determination
    Defendant finally contends that the collective impact of errors during all
    phases of the proceedings deprived him of his rights to due process, to a fair trial,
    to compulsory process and to confront the evidence against him, to a fair and
    impartial jury, to the right to present a defense, to the right to representation of
    counsel, and to fair and reliable guilt and penalty determinations in violation of the
    Fifth, Sixth, Eighth and Fourteenth Amendments. We have concluded that any
    errors or assumed errors were not prejudicial. Viewing them cumulatively, we
    conclude defendant is not entitled to reversal of his judgment.
    228
    V. DISPOSITION
    The judgment is affirmed.
    CANTIL-SAKAUYE, C. J.
    WE CONCUR:
    BAXTER, J.
    WERDEGAR, J.
    CHIN, J.
    CORRIGAN, J.
    LIU, J.
    THOMPSON, J.*
    * Associate Justice of the Court of Appeal, Fourth Appellate District, Division
    Three, assigned by the Chief Justice pursuant to article VI, section 6 of the
    California Constitution.
    229
    See next page for addresses and telephone numbers for counsel who argued in Supreme Court.
    Name of Opinion People v. Lucas
    __________________________________________________________________________________
    Unpublished Opinion
    Original Appeal XXX
    Original Proceeding
    Review Granted
    Rehearing Granted
    __________________________________________________________________________________
    Opinion No. S012279
    Date Filed: August 21, 2014
    __________________________________________________________________________________
    Court: Superior
    County: San Diego
    Judge: Laura Palmer Hammes, Franklin B. Orfield and William H. Kennedy
    __________________________________________________________________________________
    Counsel:
    Thomas Lundy, under appointment by the Supreme Court, for Defendant and Appellant.
    Bill Lockyer and Kamala D. Harris, Attorneys General, Robert R. Anderson, Chief Assistant Attorney
    General, Gary W. Schons, Assistant Attorney General, Holly D. Wilkens and William M. Wood, Deputy
    Attorneys General, for Plaintiff and Respondent.
    Counsel who argued in Supreme Court (not intended for publication with opinion):
    Thomas Lundy
    2777 Yulupa Avenue, PMB 179
    Santa Rosa, CA 95405
    (707) 538-0175
    William M. Wood
    Deputy Attorney General
    110 West A Street, Suite 1100
    San Diego, CA 92101
    (619) 645-2202
    2