Tavares David Calloway v. State of Florida , 210 So. 3d 1160 ( 2017 )


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  •           Supreme Court of Florida
    ____________
    No. SC10-2170
    ____________
    TAVARES DAVID CALLOWAY,
    Appellant/Cross-Appellee,
    vs.
    STATE OF FLORIDA,
    Appellee/Cross-Appellant.
    [January 26, 2017]
    PER CURIAM.
    Tavares David Calloway was convicted of five counts of first-degree murder
    for the deaths of Derwin Copeland, Frederick McGuire, Adolphus Melvin, Gary St.
    Charles, and Trenton Thomas, along with armed robbery, armed kidnapping, and
    armed burglary with an assault or battery. A jury recommended a sentence of
    death for each count of first-degree murder by a vote of seven to five. We have
    jurisdiction. See art. V, § 3(b)(1), Fla. Const.
    FACTS AND PROCEDURAL HISTORY
    1997
    On January 21, 1997, eighteen-year-old Anthony Strachan was at home in
    his family’s apartment on 580 Northwest 64th Street in Miami, cutting a friend’s
    hair. Strachan went into the kitchen and, through the kitchen window, saw one of
    his neighbors, “Shorty,” standing outside on 64th Street with two unknown men.
    One man, who wore a skull cap and a heavy brown coat that resembled a field or
    military jacket, was taller than Shorty. Strachan saw Shorty walk up the apartment
    stairs and past the jalousie kitchen door of his family’s apartment with one of the
    unfamiliar men. At some point later in the day, Strachan heard loud booming
    noises that he assumed were from a neighbor’s stereo. He opened the front door to
    see if anything outside might explain the noise, but saw nothing and closed the
    door.
    Strachan later walked downstairs to retrieve something from his mother’s
    car. On his way back to the apartment, he heard the door of Apartment 8 open and
    saw the unfamiliar man exiting the apartment complex. He and Strachan nodded at
    each other as they passed. The unidentified man appeared to be older than
    Strachan and held a small box the size of a shoe or cigar box that Strachan
    recognized as one often carried by Shorty. The brown coat he wore struck
    Strachan as unusually heavy for the weather in Miami.
    Elsewhere that day, Latonya Taylor was concerned about her fiancé,
    Adolphus “Tank” Melvin. He was supposed to pick up their two-year-old son
    -2-
    from day care, but the day care center called her and informed her that Melvin
    never arrived. She attempted to contact him via his beeper and cell phone, but he
    did not respond. She called her friend, Gwendolyn James, to ask if she had been in
    contact with Melvin or his friend Trenton Thomas, James’s fiancé. James paged
    Thomas, who also did not respond.
    Taylor drove to an apartment in Liberty City that was the residence of Gary
    “Shorty” St. Charles, where she had previously dropped Melvin off. She saw
    Melvin’s car in the parking lot, heard loud music playing from one of the upstairs
    apartments, and assumed that it emanated from St. Charles’s apartment. When she
    opened the door to Apartment 8, she found a grisly scene, ran with her son to the
    nearby home of Melvin’s sister, and called the police.
    When the police arrived, they found the bodies of Melvin, Thomas, St.
    Charles, and Derwin Copeland. Frederick McGuire was still alive, and paramedics
    transported him to the hospital for treatment, where he died the next day. All five
    men had been shot once in the head, execution style. Their ankles had been bound
    with duct tape, and their hands and wrists were bound behind their backs with duct
    tape. Duct tape also covered their eyes and mouths. The men were clad only in
    underwear and undershirts; their clothing and shoes were piled in a corner of the
    living room. Styrofoam containers filled with half-eaten food were found on the
    -3-
    dining room table. Officers noticed that the music on the stereo was very loud,
    even over the noise of nearby I-95.
    The initial investigation of the apartment and surrounding areas lasted for
    nearly twenty hours. The apartment appeared to have been ransacked before the
    officers arrived. Although crime scene investigators collected blood samples, they
    did not specifically search for DNA because DNA collection was not the standard
    practice of the City of Miami Police Department in 1997. Eighty-nine latent
    fingerprint cards were lifted from around the apartment, although most of the prints
    were later found to have matched the victims. All of the pieces of duct tape that
    were recovered from the apartment were commingled in one plastic bag, but the
    pieces were later separated. One empty roll of duct tape was found on the floor
    near the piles of clothing. Investigators also recovered five spent .45 caliber shell
    casings.
    The medical examiner estimated that the time of death for Melvin, Thomas,
    Copeland, and St. Charles was between 3:00 p.m. and 7:00 p.m. Their wounds
    were consistent with a .45 caliber firearm, which resulted in an immediate loss of
    consciousness and death. McGuire was similarly instantly incapacitated, although
    he did not die until the following day. Additionally, Thomas’s head wound
    featured stippling, which indicated that he was shot at close range. None of the
    men exhibited defensive wounds.
    -4-
    Although investigators found no significant quantity of drugs in the
    apartment, they did find marijuana residue and drug paraphernalia. Additionally, a
    small bag of marijuana was found in the clothing of Melvin. Investigators also
    recovered cash from under a waterbed mattress and a gold medallion under the
    body of Melvin, but there was no jewelry or marijuana found on any of the other
    victims. They concluded that Melvin was the leader of a small group involved in
    marijuana packaging and distribution. St. Charles, who resided in the apartment,
    served as his “second-in-command,” and Thomas and McGuire oversaw the
    packaging of the marijuana. Copeland was not believed to have been formally
    involved in the group’s activities, but he had recently been in a car accident and
    was dependent on Melvin, his uncle, for transportation. Despite several months of
    investigation by the City of Miami Police Department, the case went cold.
    1998
    On May 11, 1998, Detective George Law received a phone call from a
    woman who did not identify herself. Law had investigated the murder of Michael
    Gosha, whose family and friends had informed Law that Gosha was last seen alive
    with a man identified as “Black.” The woman advised Law that “Black” was
    Tavares Calloway, who knew Gosha and was involved in the quintuple murders
    from 1997, along with “Tote.”
    -5-
    On May 12, 1998, Detective Kelvin Knowles brought Antonio “Tote” Clark
    to the police station. Clark signed a Miranda1 waiver, and eventually told the
    police that he and Calloway had gone to St. Charles’s apartment to commit a
    robbery at the direction of Dwight Campbell, who was also known as Frank. Clark
    said he was unarmed and did not expect anyone to die. Calloway had instructed
    the victims to remove their clothing to be sure they were not armed and told Clark
    to bind them with duct tape. Calloway shot the men, and he and Clark left the
    scene.
    Based on Clark’s statement, Detective Knowles was dispatched to pick up
    Calloway, who had a bench warrant for driving with a suspended license. Knowles
    was unable to make contact with Calloway initially, but he left a card indicating
    that Calloway should call him. When Calloway called, Knowles informed him of
    the bench warrant and indicated that detectives needed to speak with him about
    other matters. Calloway agreed to come to the station and asked Knowles for
    transportation. He was nineteen years old.
    Calloway arrived at the station around 3:00 p.m. on May 13 and was
    directed to an interview room with a two-way mirror. He was not handcuffed, and
    officers elected not to record the interview. Detectives Law and Alberto Borges
    1. Miranda v. Arizona, 
    384 U.S. 436
    (1966).
    -6-
    began to question him, and Calloway signed a Miranda waiver at 3:31 p.m. Law
    asked Calloway if he wanted water, which Calloway declined, explaining that he
    was fasting that day because he was a born-again Christian. Calloway appeared
    relaxed and calm. Although Calloway was nineteen years old, Law thought he
    looked older and seemed mature for his age.
    Law initially questioned him about the Gosha homicide, and Calloway
    admitted that he and Gosha planned and participated in the home invasion robbery
    of Shellie Wilson (“Twin”), and that Calloway suspected Gosha was murdered in
    retaliation for that robbery. Borges then asked him about the quintuple homicides,
    but Calloway denied involvement and repeatedly told them to “find the facts.”
    When Borges showed Calloway photographs of the victims taken from the
    apartment, Calloway did not respond, other than to repeat, “find the facts.”
    Around 5:00 p.m., Law and Borges left Calloway alone in the interview room.
    Detective Ervins Ford, who had viewed the questioning from the attached
    observation room, entered the interview room after 7:00 p.m. In an effort to build
    rapport, Ford asked Calloway about his background and upbringing. Calloway
    explained that his grandmother had raised him and imposed regular church
    attendance and nightly Bible study in the household. Ford retrieved a Bible from
    one of the desks in the homicide office and returned to the interview room.
    Calloway became noticeably more comfortable and confident with Ford as
    -7-
    Calloway began to recite passages from the Bible. Calloway referenced many
    passages that concerned God’s vengeance and seemed to identify with the
    Archangel Gabriel, whom Calloway described as God’s punisher. When Ford
    asked him whether the victims had been punished by their deaths, Calloway replied
    that they should have seen it coming because they had been selling drugs for a long
    time and “were doing a lot of dirt.” After watching Calloway from the observation
    room, Detective Tony Davis entered, told Calloway that the Bible states “thou
    shall not kill,” and walked out of the room with the Bible. Ford exited the room as
    well.
    Over the course of the evening, several officers asked Calloway if he needed
    anything, offers which he declined. At approximately 8:00 p.m., Detective
    Knowles returned to the interview room and listened as Calloway told him that the
    victims were bad people, drug dealers, and they worked for the devil. Around
    11:00 p.m., Detective Juan Gonzalez entered and falsely informed Calloway that
    his fingerprints were found in Apartment 8 in 1997. Calloway responded that
    perhaps he had been to a hardware store and touched a door. When Gonzalez
    pressed him as to how a door with his fingerprints on it ended up in Apartment 8,
    Calloway became defensive and told Gonzalez to do his job and leave the room,
    which he did.
    -8-
    Law returned to the interview room at approximately 1:00 a.m. on March 14,
    along with Detective George Pereira from the Miami-Dade County Police
    Department to discuss the Twin home invasion robbery, which Pereira had
    investigated. They did not discuss the quintuple homicides with Calloway at that
    time. Calloway denied Pereira’s request to record the interview. Pereira reminded
    Calloway of his Miranda rights, and Calloway repeated that he did not want a
    lawyer and did not indicate that he wished to end the questioning.
    Gonzalez returned between 2:30 a.m. and 3:00 a.m., and Calloway provided
    some biographical information, including that three months before the murders, he
    had lived next door to Campbell, whom Calloway did not know well. Gonzalez
    told Calloway that his fingerprints were found on duct tape that was used to
    restrain the victims, which Gonzalez knew to be false. Calloway responded
    evasively that he used duct tape for many reasons, but did not know how duct tape
    with his fingerprints came to be in Apartment 8. When asked if he knew any of the
    victims, Calloway said that he knew Melvin as an unpopular snitch. Although
    Borges noticed a shift in Calloway’s demeanor at this point, he directed the
    interview to stop, given the late hour. Several officers slept at their desks, and
    Calloway was left alone in the interview room to sleep.
    Around 8:00 a.m. on May 14, Law checked on Calloway and found him
    asleep in the interview room. After Calloway was awakened by Law, Calloway
    -9-
    asked to call his girlfriend, Diane Odom. Law directed him to a telephone and
    observed the phone call, but did not listen to the conversation. He saw Calloway’s
    demeanor change and decided to resume questioning when they returned to the
    interview room. At some point that morning, one of the officers brought Calloway
    breakfast, which he eventually ate.
    Law began by telling Calloway that he could tell Calloway loved his
    girlfriend. Law and Detective Willie Everett then began to confront Calloway with
    inculpatory evidence. Law told Calloway that they knew he was at the crime scene
    because his fingerprints were found on the door and on duct tape recovered from
    the scene.2 Everett also told Calloway that they had information that he wore
    camouflage clothing and sunglasses that day.3 Everett also told Calloway that if he
    was a good Christian, God would want him to confess. The detectives saw him
    2. During trial, Law admitted this was a ruse to pressure Calloway to
    confess. Neither Calloway’s fingerprints nor his DNA were ever recovered from
    the apartment.
    3. During their questioning, Sergeant Eunice Cooper slipped a note under
    the door of the interrogation room. The note contained a list of questions that the
    detectives should ask, including whether “Black” wore army fatigues, a hat, or
    sunglasses on the day of the murders; whether he had come from the catwalk
    adjacent to I-95; if he carried anything, specifically a new jacket, shoe box, or cigar
    box; and if the “Haitian boy downstairs” was approached near the car. When
    Everett later asked Cooper where she had obtained the information, she replied that
    she was not at liberty to disclose her source. He did not question her response.
    - 10 -
    tear up, put a hand on his shoulder, and told him it would be ok. Calloway said
    that if they would give him a minute, he would tell them everything.
    Around 9:00 a.m. on May 14, Calloway told them that three days before the
    murders in January 1997, he had gone to Liberty Market to purchase camouflage
    clothing and sunglasses in preparation for a “lick,” meaning a robbery.4 On
    January 21, 1997, Michael Gosha came to him and said it was time to do the lick.
    They went to Campbell’s home first, and then Calloway and Clark went to St.
    Charles’s residence on 580 Northwest 64th Street. Calloway wore an Army hat
    and camouflage clothing.
    When they arrived, they saw St. Charles exit a car. Calloway used a .45
    caliber gun to place St. Charles in a chokehold and force their way into Apartment
    8, where they found Melvin and three other men eating from Styrofoam containers.
    Calloway demanded to know where the drugs were and ordered everyone to get on
    the floor and remove their clothing and jewelry. Calloway told Clark to find
    something to restrain the men, and when Clark turned up empty-handed, he sent
    Clark to purchase tape. Clark returned with duct tape, and they began to tape
    everyone. When they ran out of duct tape, Calloway directed Clark to purchase
    4. Calloway was eighteen years old in January 1997.
    - 11 -
    more. Calloway placed tape across the eyes of the victims, “because they were
    looking” at him.
    At a loss for what to do next, Calloway sent Clark to Campbell for further
    instructions. Clark returned and told him that Campbell said to kill two of the men.
    Calloway responded that killing only two of them would create problems because
    they could identify Calloway and would retaliate. Clark returned to Campbell’s
    apartment and reported to Calloway that Campbell said to kill everyone. Calloway
    increased the volume of the stereo to muffle the sounds of gunshots. He shot each
    of the victims in the head once. Calloway and Clark took two pounds of
    marijuana, jewelry, cell phones, beepers, and cash; wiped down any fingerprints
    they might have left; and fled to Campbell’s house. They informed him they had
    completed the lick and went to the home of another friend. A short time later,
    Calloway disposed of the gun and provided the stolen jewelry to a relative of
    Gosha’s to pawn.
    Law asked Calloway if they could have a stenographer record a formal,
    sworn statement, and Calloway agreed. Additional details were included in the
    statement, including that before they settled on Melvin as the target of the lick,
    Calloway and Campbell discussed other potential targets. Calloway also indicated
    that Atwon “Twon” Davis waited for Clark and him in the parking lot while they
    - 12 -
    were in the apartment before driving them to a friend’s house.5 Gosha, Clark, and
    Calloway distributed the items taken from the apartment among themselves before
    they parted ways. Calloway later burned his clothing.
    Law arranged for Diane Odom to come to the police station. When she
    arrived, Law and Everett left Odom and Calloway alone and unmonitored in the
    interrogation room. He was crying and told her he had to come clean and get right
    with God. Sergeant Cooper later saw Calloway in the homicide office, and he told
    her that if he had not confessed, they would never have been able to prove his
    involvement.
    Around 1:00 p.m., Calloway agreed to show Law and Everett the area where
    he disposed of the gun. Calloway, who was not handcuffed because the officers
    thought he was cooperative, Odom, Everett, and Law drove in a van first to Liberty
    Market, where Calloway told the detectives he had purchased clothing for the lick.
    They then drove to the area where Calloway claimed to have disposed of the gun,
    which was a litter-strewn field. Despite a brief search, the gun was not found.
    The officers then proceeded to the home of one of Calloway’s relatives,
    where he spoke to and hugged his family members. The officers left Odom with
    5. Officers later learned that Davis was incarcerated at the time of the
    homicides and therefore could not have driven Calloway and Clark from the crime
    scene.
    - 13 -
    Calloway’s relatives and eventually returned with Calloway to the police station.
    Upon their return, Calloway reviewed and signed his transcribed statement,
    twenty-six hours after he first entered the police station. Ultimately, eleven police
    officers questioned Calloway over the course of approximately eighteen hours,
    during which time he was not handcuffed.
    On May 26, 1998, a grand jury indicted Calloway and Clark on eight counts:
    five counts of first-degree murder, one count of armed robbery, one count of armed
    kidnapping, and one count of armed burglary with an assault or battery. The joint
    indictment was eventually severed.
    Discovery
    In 2008, Detective Borges first learned that Strachan may have witnessed
    some of the events that day. At that point, it was revealed that Sergeant Cooper,
    the author of the note that was slipped under the door during Calloway’s
    confession, had received information from one of her friends, Val Williams.
    Williams, the mother of Strachan and who worked in the property department of
    the City of Miami Police Department, approached Cooper sometime in 1997 and
    provided Cooper with information that provided the basis for several questions on
    the note. However, Williams asked Cooper not to share the information because
    Williams did not want her son to be involved in the investigation. At the time,
    Cooper did not think the information was sufficient to identify any particular
    - 14 -
    suspect and incorrectly believed Strachan to be a minor, so she honored Williams’s
    request. Cooper did not reveal the source of her information until 2008, when the
    note was brought to her attention again. When Borges learned that Strachan may
    have had information regarding the homicides, he and another officer flew to
    Arizona, where he then lived, to interview him.
    In October 2008, the trial court held a suppression hearing regarding
    Calloway’s confession that lasted several days and was continued until March
    2009. At the conclusion of the hearing, the State and Calloway contested whether
    a Frye6 hearing was necessary to determine whether Dr. Richard Ofshe, an expert
    witness in the field of false confessions, could testify for the defense. The trial
    court ruled that both Dr. Ofshe and Dr. Michael Welner, a rebuttal witness for the
    State, could testify, but only after Calloway himself testified that his confession
    was false. However, Calloway did not testify during the suppression hearing;
    therefore, neither doctor testified at that time.
    Guilt Phase
    During trial, the State presented testimony from each of the officers who
    participated in the interrogation. In anticipation of Calloway’s defense that his
    confession was false and “fed” to him by officers, the State presented evidence
    6. Frye v. United States, 
    293 F. 1013
    (D.C. Cir. 1923).
    - 15 -
    during its case-in-chief to counter that defense. Every officer who testified denied
    that anyone had threatened, coerced, or promised Calloway anything to obtain a
    confession. Additionally, each officer testified that Calloway did not request an
    attorney or otherwise invoke his Miranda rights.7
    Detective Borges testified that some of the contemporaneous media
    coverage of the murders did not accurately portray certain details. He explained
    that he was familiar with many of the details from the January 1997 investigation
    that he did not disclose to Everett or Law before they obtained the confession. He
    also offered testimony that Calloway himself provided certain details that were
    unknown to officers in May 1998, but were later confirmed by Strachan, such as
    the fact that Calloway first encountered St. Charles downstairs. Further, Borges
    testified that Clark’s fingerprints were found on the sticky side of certain pieces of
    duct tape, which confirmed both Clark’s and Calloway’s accounts that Clark taped
    the victims.8
    Law denied that he or Everett “fed” Calloway specific details when they
    questioned him, or that they rehearsed anything with him before his statement was
    7. The videotaped testimony of Detective Everett, taken in 2003 before
    Calloway testified or Cooper disclosed Strachan as a witness, did not reference
    either an invocation of Calloway’s Miranda rights or Cooper’s note.
    8. Clark did not testify during trial, but his statement, taken the day before
    Calloway was arrested, was used for impeachment purposes.
    - 16 -
    recorded. Law flatly denied that he “tricked [Calloway] into thinking he was a
    police agent” who would assist the detectives with the apprehension of the “real”
    murderers. Law also testified that that he did not recognize the note written by
    Cooper, nor did he remember it from their interrogation of Calloway.
    Fabrice Nelson, the lead crime scene investigator in January 1997, testified
    with respect to evidence recovered from the apartment. Guillermo Martin, a latent
    fingerprint examiner, testified that latent prints lifted from the freezer door and the
    sticky side of duct tape pieces recovered from Apartment 8 matched those of
    Clark. Martin admitted that of the sixty-four latent fingerprint cards of value
    recovered, thirty-four cards remained unidentified, and none matched the known
    prints of Calloway. Over objections from the defense, the State also presented the
    testimony of medical examiner Dr. Bruce Hyma, in the place of Dr. Charles
    Siebert, the original medical examiner.
    Latonya Taylor testified that she recognized her fiancé, Adolphus Melvin,
    by the underwear that he wore when he was killed, which she had purchased for
    him. She also described the jewelry that he usually wore, which, along with his
    wallet, cell phone, and beeper, she never saw after he left for the day on January
    21, 1997. Gwendolyn James, the fiancée of Trenton Thomas, also testified that
    Thomas’s pager was never found after that day. Adolphus Thornton, who knew
    Calloway as “Black” and was a friend of his nephew, Michael Gosha, testified that
    - 17 -
    Calloway approached him in January 1997 to pawn a distinctive gold bracelet. A
    few days later, Thornton learned that Melvin had been murdered and recognized
    the bracelet as belonging to him.
    Strachan testified that in January 1997, he assumed the booming noises were
    music played from loud speakers; however, he had since served in the Marines and
    thought he recognized the noises to be the sounds of gunshots, although he could
    not definitely categorize the noises. After he informed his mother of what he had
    observed, his mother moved their family out of the apartment that very day and
    they did not return. After he testified that the person he saw in January 1997
    seemed to be several years older than himself, he admitted that he was unable to
    identify Calloway in a photographic array during a police interview in 2008 or
    during trial in 2009.
    The State also presented testimony from Diane Odom, Calloway’s girlfriend
    at the time of his arrest. She testified that she saw Calloway after he confessed and
    drove with Calloway and the officers to search for the gun. On direct examination,
    she testified that Calloway did not tell her that her life was in danger when officers
    dropped her off with members of Calloway’s family that day.
    After the State rested, defense counsel proceeded on a theory that
    Calloway’s confession was false and induced as part of a plan with the police to
    lure the real murderers from hiding. In support of this theory, defense counsel
    - 18 -
    presented testimony from Calloway and Dr. Ofshe, a sociologist who testified as
    an expert on factors that can cause a false confession.
    Calloway’s testimony conflicted with that of various police witnesses. For
    example, he testified that when he signed the Miranda paperwork upon his arrival
    at the police station, no one explained that he was under arrest or reviewed the
    protections of the Miranda rights. He also asserted that he requested an attorney
    several times from several different officers, and at one point, Borges retorted that
    “the devil in a suit” could not save him and he would “fry for this.” He also
    claimed that Ford, rather than himself, stated that the victims were bad people who
    worked for the devil. Further, he testified that several officers provided him with
    nonpublic details about the murders, including that a robbery also occurred; the
    apartment was a marijuana packaging center; the victims were killed execution
    style; the stereo volume was high; and the weapon used was a .45 caliber gun.
    After being left alone in the interview room, Calloway testified that Law
    returned at some point in the late night or early morning with a “glazed, crazy”
    look. Law said he had been speaking with the deceased Gosha, who told Law who
    had killed him. Calloway thought Law might have experienced a religious vision
    and replied that if Law had really spoken to Gosha, Gosha would have told him
    that Calloway was a good person who was not involved in the murders of either
    Gosha or the five men in 1997. Law returned sometime later, looking calmer, and
    - 19 -
    explained that the men who killed Gosha intended to target Calloway next. Law
    implied that Calloway and his family were under surveillance. However, Law said
    it would help Calloway if he made a false statement and to think about his family
    before declining this opportunity to help them. After speaking with Odom,
    Calloway agreed to provide a false confession to protect his family. He testified
    that he was under the impression that he would spend three months in jail so that
    the police could apprehend the real murderers. The State extensively impeached
    Calloway with an earlier interview between Dr. Ofshe and Calloway. Calloway
    defended inconsistent or incoherent statements by reference to his age at the time
    of the arrest (19), naivety, ignorance, use of slang, and lack of education.
    Dr. Ofshe offered testimony regarding the manner in which a police
    interview may become a coercive interrogation that results in a confession. He
    explained that Calloway’s account indicated the presence of many sources of
    “contamination,” meaning that Calloway was potentially aware of evidence from
    either media accounts or the officers themselves. Dr. Ofshe offered his opinion
    that “[t]he quality of the interrogation was extremely poor throughout”; however,
    the trial court precluded him from further testifying whether it was his opinion that
    the confession was false. The court also ruled that Dr. Ofshe could not compare
    statements in Cooper’s note and Strachan’s testimony to Calloway’s confession.
    - 20 -
    The State impeached Dr. Ofshe with inconsistences in the notes that
    Calloway provided to him before their interview. For example, when Dr. Ofshe
    interviewed Calloway in 2001, Dr. Ofshe told Calloway that it did not make sense
    that Calloway told the police he had fabricated the story about sending Clark to
    purchase duct tape, when Clark had recounted the same detail the day before
    Calloway was arrested. Dr. Ofshe admitted that he disregarded many of the details
    that Calloway recounted as too confusing until he learned about Cooper’s note and
    the substance of Strachan’s testimony.
    Defense counsel also presented testimony from Rupert Butcher, a latent
    fingerprint examiner from the City of Miami Police Department. He testified that
    the duct tape collected from Apartment 8 was commingled and seized improperly.
    During rebuttal, the State presented testimony from several witnesses who
    disputed Calloway’s testimony. Law explained that he was only minimally
    involved with the 1997 quintuple homicides prior to Calloway’s arrest and
    therefore could not have provided him with details about the homicides. Law and
    Borges denied that Borges told Calloway that he “would fry” for this and that a
    lawyer, “a devil in a suit,” could not help him, or that they denied him an attorney
    upon his request. Law denied that he approached Calloway early on the morning
    of May 14 and told Calloway that he had spoken to Gosha in a dream, or that he
    arranged a deal with Calloway. The State also presented detectives from the
    - 21 -
    Miami-Dade County Police Department who had investigated the Twin robbery.
    Calloway testified that he was a victim of that robbery; however, Detective Pereira
    countered that Calloway admitted his involvement with that robbery.
    Dr. Michael Welner, a psychiatrist, agreed that false confessions do occur,
    but emphasized that they are a rare phenomenon. He also explained that research
    has demonstrated that false confessions tend to be made more often by individuals
    who are compliant or suggestible, particularly those who suffer from mental illness
    or qualify as intellectually disabled. Dr. Welner stated that he had no evidence to
    indicate that Calloway was particularly compliant or suggestible, suffered from
    mental illness, or was actively psychotic at the time of his arrest and confession.
    After a trial that lasted over two months, the jury returned a guilty verdict on
    all counts on July 30, 2009.
    Penalty Phase
    During the penalty phase, the State presented victim impact testimony from
    Dorothy White, the mother of Trenton Thomas; Katherine Lowe, the sister of
    Frederick McGuire; Carolyn Raphael, the sister of Gary St. Charles; Errol Kelly,
    the nephew of Adolphus Melvin; and Gloria Copeland, the mother of Derwin
    Copeland. The State then rested.
    Diane Odom, Calloway’s girlfriend at the time of his arrest, testified that
    Calloway helped her with her children during their relationship. He picked them
    - 22 -
    up from school, taught them how to play football and ride bikes, and spent three to
    five days a week with them. Eugene Anderson, a relative to Calloway by
    marriage, explained that he occasionally hired Calloway to assist him with his
    carpet installation business and that Calloway gave his earnings to Eugene’s wife,
    Shante, for their children.
    Joan King and Juanita Perry testified that before his arrest, Calloway
    regularly attended church. In addition to attending services three times a week, he
    participated in youth activities, helped clean the church, and served as an usher.
    Eugene Hill, Calloway’s step-grandfather, provided testimony about
    Calloway’s impoverished childhood. His stepdaughter and Calloway’s mother,
    Shirley Hill, moved to Miami to live with him and his wife, Hester Hill. Eugene
    tried to provide for Calloway and his brother, Reginald, and to discipline them, but
    he was eventually injured and was unable to continue to support Shirley and her
    family.
    Shante Anderson, Calloway’s second cousin, testified regarding Calloway’s
    difficult childhood. When Calloway’s mother moved her children to Liberty City,
    they lived in a crowded two-bedroom apartment with Eugene and Hester Hill,
    Cherry Hill, and Cherry’s two children. Eugene was strict and threatened to
    discipline the children with his belt. After Shirley moved out of the apartment
    when Calloway was approximately thirteen years old, she, Calloway, and Reginald
    - 23 -
    were evicted at least twice from various apartments around Liberty City. It was
    rare that Shirley kept more than milk and cereal to feed Calloway and Reginald.
    Calloway would visit his grandparents’ home, where Hester would feed him
    without Eugene’s knowledge or permission.
    Reginald Calloway further testified to the hardships he and his brother
    endured. He stated that Eugene frequently beat Calloway with a belt during the
    time they lived with him and their mother was largely absent during this time.
    Despite the difficulties, Calloway encouraged his brother to stay in school and
    served as a surrogate father figure.
    Calloway’s mother, Shirley, explained that she was often abused by
    Solomon Calloway, the father of Calloway and Reginald, and that he once
    attempted to drown her in a bathtub. When Calloway was one or two years old,
    she moved her children to a small, one-bedroom trailer in Georgia. Despite the
    move, Solomon visited the trailer and beat Shirley with a switch nearly every day.
    Solomon would also beat Calloway with the switch. She recounted one incident
    when she and Solomon were fighting and Calloway, then a toddler, handed her a
    bat to use in self-defense. The abuse continued until she moved to Miami to live
    with her mother and stepfather, when Calloway was five or six years old.
    After she moved out of their home and into a one-bedroom apartment with
    her sons, she spent her income on drugs, rather than rent, electricity, groceries, or
    - 24 -
    other basic needs for her children. When Calloway was approximately fourteen,
    she moved the family again, this time to the Scott Projects, which she described as
    a “war zone” where drugs were openly sold and fights occurred regularly. Her
    drug abuse intensified, and she testified that at that point in her life, nothing but
    crack cocaine mattered to her, not even her children. Instead of using food stamps
    to feed her children, she traded the food stamps for drugs.
    On February 3, 2010, the jury recommended the death penalty for all five
    murders, each by a vote of seven to five. On April 13, 2010, the court held a
    Spencer9 hearing. Dr. Jethro Toomer, a clinical psychologist, testified for the
    defense. Dr. Toomer explained that the instability, poverty, and parental
    abandonment that Calloway experienced throughout his life affected his cognitive
    processing, impulse control, and ability to engage in personal relationships.
    However, Dr. Toomer admitted that Calloway’s participation in planning the
    robbery and murders demonstrated that he was capable of controlling his impulses.
    The trial court issued its sentencing order on October 1, 2010. The court
    concluded that the State had established beyond a reasonable doubt the existence
    of six aggravating circumstances: prior conviction of a capital felony, §
    921.141(5)(b), Fla. Stat. (1997) (great weight); capital felony committed in the
    9. Spencer v. State, 
    615 So. 2d 688
    (Fla. 1993).
    - 25 -
    course of a kidnapping, § 921.141(5)(d) (great weight); capital felony committed
    for the purpose of avoiding arrest, § 921.141(5)(e) (great weight); capital felony
    committed for pecuniary gain, § 921.141(5)(f) (great weight); capital felony was
    heinous, atrocious, or cruel (HAC), § 921.141(5)(h) (exceptionally great weight);
    and capital felony was committed in a cold, calculated, and premeditated manner
    (CCP), § 921.141(5)(i) (extremely great weight).
    The court found one statutory mitigating circumstance, Calloway’s age at
    the time of the murders, section 921.141(6)(g), Florida Statutes, and gave it some
    weight. The court also acknowledged the existence of the following nonstatutory
    mitigating circumstances: Calloway had an unstable and impoverished background
    (slight weight); he was often abandoned by his mother, who was a crack addict
    (some weight); as a very young child, he witnessed his father physically abuse his
    mother (slight weight); he demonstrated poor performance in school, has a low-
    normal IQ, and dropped out of school (minimal weight); he grew up in the Scott
    Projects, a rough neighborhood rife with narcotics and violence (slight weight); he
    suffered emotional deprivation at the hands of his caregivers, his mother and step-
    grandfather (little weight); he was exposed to chronic violence throughout his life
    (little weight); he was deprived of a nurturing mother (little weight); he grew up in
    abject poverty (slight weight); he was born into a dysfunctional family (minimal
    weight); he became normalized to violence (little weight); he lacked guidance and
    - 26 -
    a father-son relationship (slight weight); he lacked a role model (no weight); he
    faced unstable living conditions throughout his life (little weight); he was active in
    his church and exhibited genuine religious beliefs (no weight); his aunt and
    grandmother passed away while he was in jail, and he was upset because he was
    unable to attend their funerals (no weight); he did not flee from the police (no
    weight); his mother still loves him (no weight); he was a good father figure to the
    children of his former girlfriend, Diane Odom (some weight); he encouraged his
    cousins to do well (minimal weight); he is considerate, generous, and concerned
    about his family (some weight); he will die in prison regardless of what sentence
    he receives (no weight); the police would not have solved the crimes if he had not
    confessed (some weight); Clark, his codefendant, was sentenced to life
    imprisonment (no weight); he did not receive recommended psychological
    counseling (some weight); he was employed at the time of his arrest (slight
    weight); and he used poor judgment and engaged in impulsive behavior (minimal
    weight).10
    10. The court determined that Calloway did not present mitigating evidence
    that the capital felony was committed while he was under the influence of a mental
    or emotional disturbance. The court also rejected his claim that it should consider
    as a mitigating circumstance that he was a follower, when “[t]he evidence proved
    that he was clearly a leader in the commission of these crimes.”
    - 27 -
    The court concluded that the aggravating circumstances, particularly HAC
    and CCP, far outweighed the mitigating circumstances. The trial court sentenced
    Calloway to death for the murders, and imposed life sentences for the armed
    robbery, armed kidnapping, and armed burglary with an assault or battery
    convictions. This appeal follows.
    DISCUSSION
    Voir Dire
    The first error that Calloway alleges is that the trial court improperly limited
    the scope of voir dire. Specifically, defense counsel sought to ask potential jurors
    whether they would consider a life recommendation when faced with five murder
    victims and the anticipated multiple aggravating circumstances. During a hearing
    on this issue, the defense argued that they would be unable to explore juror bias
    and intelligently exercise preemptory strikes without these questions. The State
    generally agreed that the defense should be permitted to ask whether jurors would
    commit to weighing the aggravating and mitigating circumstances. However, the
    State contended that defense counsel should not be permitted to attempt to commit
    the jurors to a predetermination by asking if jurors could still consider life after
    hearing about multiple certain aggravating circumstances, which would convert
    voir dire into a pretrial of the case.
    - 28 -
    The trial court explained that prospective jurors had been asked whether they
    could commit to fairly weighing aggravating and mitigating circumstances before
    making their recommendation. When defense counsel responded, “The problem is,
    they don’t know what the aggravators are yet,” the court answered, “That’s the
    way it is,” and reminded defense counsel that the jurors are given similar
    instructions before deliberation. Defense counsel replied:
    I don’t want to find out their attitude towards applying that instruction
    at the end of the case. It’s too late for me to have explored whether
    they would be overwhelmed by [preconceived] notions of bias against
    [heinous], atrocious, and cruel.
    A case where someone tortured someone[,] tied them up and
    subject[ed] them to pain, no, I can’t give them life. I need to know
    that at the beginning because they don’t know what the aggravators
    are going to be, either the law or the potential factual scenario. And if
    they would be overwhelmed that they can’t apply the law or they have
    a bias such that I would use a pre-emptory, I need to know about it in
    jury selection.
    The court stated that defense counsel had failed to present any authority to support
    that position, and the jury should not be requested to engage in pretrial
    determinations. It ultimately concluded that the parties could probe the venire
    about potential bias regarding the number of victims and the potential for financial
    gain, given that the indictment included the armed robbery charge.
    This Court will not disturb a ruling of a trial court regarding the scope of
    voir dire absent a finding of an abuse of discretion. E.g., Chamberlain v. State, 
    881 So. 2d 1087
    , 1095 (Fla. 2004). This standard is only met if no reasonable person
    - 29 -
    would arrive at the same conclusion as that of the trial court. Trease v. State, 
    768 So. 2d 1050
    , 1053 n.2 (Fla. 2000) (citing Huff v. State, 
    569 So. 2d 1247
    , 1249 (Fla.
    1990)). This Court has previously found no abuse of discretion in the exclusion of
    questions pertaining to potential jurors’ familiarity with stories about prisoners
    who had been released from death row, or their views regarding mitigation.
    Darling v. State, 
    808 So. 2d 145
    , 160 (Fla. 2002); Vining v. State, 
    637 So. 2d 921
    ,
    926-27 (Fla. 1994); see also Hoskins v. State, 
    965 So. 2d 1
    , 13 (Fla. 2007) (finding
    no abuse of discretion in excluding the use of autopsy photographs during voir
    dire). However, we have held that an abuse of discretion occurred when a trial
    court prevented defense counsel from questioning prospective jurors about whether
    they would accept voluntary intoxication as a defense in a case that required
    specific intent to be established. Lavado v. State, 
    492 So. 2d 1322
    , 1323 (Fla.
    1986); see also Johnson v. State, 
    590 So. 2d 1110
    , 1110 (Fla. 2d DCA 1991) (trial
    court abused its discretion in excluding questions about defendant’s status as a
    convicted felon to probe for potential bias).
    It is a well-settled principle in Florida that parties may not question potential
    jurors during voir dire about evidence that is expected to be presented during trial
    and request an initial decision from prospective jurors as to how they will rule in
    the case. 
    Hoskins, 965 So. 2d at 13
    (“The purpose of voir dire is to obtain a fair
    and impartial jury, whose minds are free of all interest, bias, or prejudice, not to
    - 30 -
    shock potential jurors or to obtain a preview of their opinions of the evidence.”
    (citations omitted)); Franqui v. State, 
    699 So. 2d 1312
    , 1322 n.5 (Fla. 1997) (citing
    
    Vining, 637 So. 2d at 921
    ; Dicks v. State, 
    93 So. 137
    , 138 (Fla. 1922)). “Such a
    procedure would revolutionize jury trials.” 
    Dicks, 93 So. at 137
    .
    We distinguish this case from Lavado, which involved whether the jury
    could accept the theory of the defense. In Barnhill v. State, 
    834 So. 2d 836
    , 846
    (Fla. 2002), this Court explained how such a question was critical to the
    defendant’s right to a fair trial:
    If counsel knows nothing more of the jurors, the single thing defense
    counsel must ascertain is whether the prospective jurors can fairly and
    impartially consider the defense offered by the defendant. See
    Lavado v. State, 
    492 So. 2d 1322
    (Fla. 1986). A trial judge abuses his
    or her discretion if he or she precludes counsel from asking specific
    questions about bias or prejudice against the defendant or the defense
    theory, even if the judge permits the general question as to whether
    the prospective juror can follow the law. 
    Id. (Emphasis supplied);
    see also 
    Johnson, 590 So. 2d at 1110
    . Unlike the
    circumstances in Lavado or Johnson, the questions here pertained to obtaining a
    pretrial decision on anticipated aggravating circumstances that could only be
    explained through a discussion of the underlying facts, rather than an aspect of
    Calloway or his theory of the case. Therefore, neither Lavado nor Johnson
    provides support for Calloway’s proposition that the trial court abused its
    discretion.
    - 31 -
    Here, defense counsel sought to precommit jurors to a recommendation of a
    life sentence based on expected evidence. Calloway asserts that the trial court’s
    exclusion of such questions was inconsistent with a subsequent ruling that
    permitted questions regarding the number of victims and the potential pecuniary
    gain aggravating circumstance. However, the court explained that the potential
    jurors were aware of the number of victims and that the murders had occurred
    during the course of a robbery because they had been informed of the crimes with
    which Calloway had been charged. What they had not been informed of at that
    time were the particular facts of the crime—namely, that the victims had been
    duct-taped, blindfolded, and gagged while they listened to Calloway and Clark
    debate whether to kill some or all of them. The trial court permitted defense
    counsel to ask hypothetical questions about jurors’ general views on aggravation;
    however, defense counsel could not ask them whether they would precommit to a
    life sentence in light of specific aggravating circumstances. Such questions would
    have pretried the case in voir dire. See 
    Hoskins, 965 So. 2d at 13
    ; Franqui, 
    699 So. 2d
    at 1322 n.5. Therefore, we conclude that the trial court did not abuse its
    discretion when it issued the one limitation.
    Whether a Frye Hearing Was Necessary
    - 32 -
    On cross-appeal, the State claims that the trial court erred when it failed to
    conduct a Frye hearing before it allowed Dr. Ofshe to testify as an expert.11 The
    State contends that had a Frye hearing been held, Dr. Ofshe would not have been
    permitted to testify as an expert. During a pretrial suppression hearing in 2008, the
    State insisted that Dr. Ofshe be subject to a Frye hearing before he could testify.
    However, the trial court ruled that his testimony would not become relevant until
    Calloway testified that his confession was false. Calloway did not testify until trial
    in 2009, and the trial court ruled that a Frye hearing would not be held at that point,
    based on United States v. Hall, 
    93 F.3d 1337
    , 1342 (7th Cir. 1996), and Boyer v.
    State, 
    825 So. 2d 418
    (Fla. 1st DCA 2002).
    Under the Frye standard, the proponent of the evidence sought to be
    admitted must prove to the trial court by a preponderance of the evidence that the
    scientific principles and methodology of the expert witness are generally accepted
    by the relevant scientific community. Marsh v. Valyou, 
    977 So. 2d 543
    , 547 (Fla.
    2007); Ramirez v. State, 
    810 So. 2d 836
    , 844 (Fla. 2001). Frye hearings only
    apply to novel scientific methodologies; once the methodology has been
    established and recognized by the relevant scientific community, a Frye hearing
    becomes unnecessary. See, e.g., King v. State, 
    89 So. 3d 209
    , 228-29 (Fla. 2012)
    11. The Frye standard was in place at the time of Calloway’s trial in 2009.
    - 33 -
    (concluding that tool-mark identification did not require a Frye hearing). Frye
    determinations are legal rulings that are reviewed de novo. Brim v. State, 
    695 So. 2d
    268, 274 (Fla. 1997). Frye errors are subject to being reviewed for harmless
    error. 
    Ramirez, 810 So. 2d at 845
    (citing Hadden v. State, 
    690 So. 2d 573
    , 581
    (Fla. 1997)). An error is harmless if there is no reasonable possibility that it
    affected the verdict. State v. DiGuilio, 
    491 So. 2d 1129
    , 1135 (Fla. 1986).
    In Flanagan v. State, 
    625 So. 2d 827
    , 828 (Fla. 1993), this Court explained
    that not all expert testimony requires a Frye hearing:
    [P]ure opinion testimony, such as an expert’s opinion that a defendant
    is incompetent, does not have to meet Frye, because this type of
    testimony is based upon the expert’s personal experience and training.
    While cloaked with the credibility of the expert, this testimony is
    analyzed by the jury as it analyzes any other personal opinion or
    factual testimony by a witness. Profile testimony, on the other hand,
    by its nature necessarily relies on some scientific principle or test,
    which implies an infallibility not found in pure opinion testimony.
    The jury will naturally assume that the scientific principles underlying
    the expert’s conclusion are valid. Accordingly, this type of testimony
    must meet the Frye test, designed to ensure that the jury will not be
    misled by experimental scientific methods which may ultimately
    prove to be unsound. See Stokes[ v. State, 
    548 So. 2d 188
    ], 193-194
    [(Fla. 1989)] (“A courtroom is not a laboratory, and as such it is not
    the place to conduct scientific experiments. If the scientific
    community considers a procedure or process unreliable for its own
    purposes, then the procedure must be considered less reliable for
    courtroom use.”).
    (Emphasis supplied.) We subsequently concluded that based upon the reasoning in
    Flanagan, a Frye hearing must be held before an expert could testify about the
    psychological effects of sexual abuse upon a child. 
    Hadden, 690 So. 2d at 579-80
    .
    - 34 -
    We have also previously considered whether Dr. Ofshe’s testimony requires
    a Frye hearing before it may be presented to a jury. In Williamson v. State, 
    994 So. 2d 1000
    , 1007-08 (Fla. 2008), the prosecution theorized that the defendant
    threatened a key State witness, Charles Panoyan. In support of this theory, Dr.
    Ofshe testified for the State that the threats made by Williamson indicated a degree
    of control or influence over Panoyan. 
    Id. at 1009.
    The following exchange
    occurred during trial:
    Q. [The State] But did you have the opportunity to discern any kind
    of control or influence that had been exercised by Dana Williamson
    according to the attestation of Charles Panoyan, which degrees or
    kinds of control you recognized?
    A. [Dr. Ofshe] Yes.
    ....
    Well, in reviewing the history of Mr. Panoyan’s experience in
    connection with the invasion and death and the assaults at the Decker
    residence, and over the course of the investigation that followed,
    including his incarceration and ultimate decision to speak about what
    happened, the pattern that he displays is a pattern of someone who
    has, for one [sic] of a better word, been terrorized, and someone who
    is acting in response to a credible threat, not only to himself, but also,
    and to some degree, more importantly, to members of his family.
    And that the manner in which he responds at various points
    indicates quite clearly that he has a great concern about something
    happening to his family . . . .
    ....
    The point at which he chose to do certain things reflects the
    kind of threat and fear he was acting under, and the particular
    - 35 -
    decisions that he made to me are completely consistent with what he
    says about the sort of threats that he was exposed to.
    
    Id. (emphasis supplied).
    The postconviction court summarily denied Williamson’s
    claim that trial counsel was ineffective for failure to request a Frye hearing before
    Dr. Ofshe testified. 
    Id. However, on
    appeal we explained that the court should
    have determined whether Dr. Ofshe’s testimony regarding the effect of the
    defendant’s coercion on the witness was generally accepted by the relevant
    scientific community. 
    Id. at 1010
    (citing 
    Hadden, 690 So. 2d at 575-76
    ; 
    Flanagan, 625 So. 2d at 828
    ). We concluded that the summary denial of the claim was error
    and remanded to the postconviction court for an evidentiary hearing. 
    Id. In this
    case, we hold that under Williamson, a Frye hearing was necessary
    before Dr. Ofshe was permitted to testify. Although Calloway asserts that the
    testimony in Williamson is factually distinguishable from the testimony presented
    below, we disagree. In both Williamson and this case, Dr. Ofshe’s testimony
    ultimately concerned how coercion in the form of threats made to an individual or
    his family can influence that individual’s behavior. Moreover, we have explained
    that the testimony involved in both Williamson and Hadden involved expert
    testimony that was more than pure opinion evidence and therefore required a Frye
    hearing. 
    Williamson, 994 So. 2d at 1010
    ; see also 
    Flanagan, 625 So. 2d at 828
    (“Profile testimony, on the other hand, by its nature necessarily relies on some
    scientific principle or test, which implies an infallibility not found in pure opinion
    - 36 -
    testimony.”). As in Williamson, Hadden, and Flanagan, Dr. Ofshe’s testimony
    consisted of more than a pure opinion from an expert. In fact, Dr. Ofshe was not
    permitted to offer an opinion as to whether Calloway’s confession was false,
    coerced, or otherwise unreliable, but instead only explained that false confessions
    occur and what factors might produce a false confession. This evidence was
    supported by research referenced by Dr. Ofshe during his testimony and included a
    discussion of the rate of occurrence of false confessions and his model of false
    confessions. His testimony therefore relied upon a scientific or academic principle
    or test, which constitutes evidence that requires a review of its underlying
    methodology and acceptance before it can be presented to a jury. See 
    Williamson, 994 So. 2d at 1009-10
    ; 
    Hadden, 690 So. 2d at 575-76
    ; 
    Flanagan, 625 So. 2d at 828
    .
    However, this error was harmless. The primary witnesses for the defense
    were Calloway and Dr. Ofshe, whose testimony lent academic credence to
    Calloway’s claim that he was pressured by the police to give a false confession.
    The central issue of the case was whether Calloway provided a false confession out
    of fear for himself and his family. Even assuming that the trial court would have
    entirely excluded testimony from Dr. Ofshe after a proper Frye hearing—which we
    do not conclude today12—the jury nonetheless convicted Calloway of five counts
    12. Because no Frye hearing occurred below, we decline to address whether
    Dr. Ofshe’s testimony would have satisfied the Frye standard.
    - 37 -
    of first-degree murder, armed robbery, armed kidnapping, and armed burglary,
    after it heard extensive testimony from Dr. Ofshe that the confession may have
    been the product of coercion and an illicit deal with law enforcement. The State
    does not allege any harm suffered by this error. Under these circumstances, we
    conclude there is no reasonable possibility that the failure to conduct a Frye
    hearing prior to Dr. Ofshe’s testimony ultimately affected the verdict.
    Limitations on Testimony of Dr. Ofshe
    The next error that Calloway alleges occurred is that the trial court so limited
    the testimony of Dr. Ofshe that it was rendered meaningless. To demonstrate that
    Calloway’s confession was false and coerced, defense counsel sought to introduce
    Dr. Ofshe’s methodology, which requires a comparison between objective facts
    available beyond what is revealed in a confession and the “facts” developed during
    the confession. Dr. Ofshe was permitted to explain at length and with few
    interruptions how an interrogation occurs and what factors an interrogator might
    use to obtain a confession. During redirect, he was also allowed to discuss studies
    that examined false confessions and tactics that might induce a false confession.
    He further stated that he saw the existence of “powerful motivators” that were
    likely to induce a false confession in Calloway’s account of the interrogation.
    However, the court prevented Dr. Ofshe from comparing what he called
    “objectively knowable facts,” such as the information available from Strachan’s
    - 38 -
    testimony and Cooper’s notes, with the “facts” in Calloway’s confession. The trial
    court explained that both the “facts” as framed by Dr. Ofshe and his assessment of
    witness credibility were matters for the jury.
    We review evidentiary rulings by a trial court for abuse of discretion.
    Frances v. State, 
    970 So. 2d 806
    , 813-14 (Fla. 2007). An expert may testify about
    an opinion developed from facts not in evidence before the jury. § 90.704, Fla.
    Stat. (1997). However, experts may not comment on the credibility of other
    witnesses. 
    Frances, 970 So. 2d at 814
    ; Feller v. State, 
    637 So. 2d 911
    , 915 (Fla.
    1994). This limitation is intended to minimize any effect that the expert status of
    the witness may have on the jury’s reception of the testimony. See Feller, 
    637 So. 2d
    at 915; State v. Townsend, 
    635 So. 2d 949
    , 958 (Fla. 1994) (“[G]reat care must
    be taken by a trial judge in determining what testimony of an expert is admissible
    because a jury often places great emphasis on the testimony of experts . . . .”).
    In Frances, an expert attempted to testify about the defendant’s general
    knowledge and comment on the credibility of other 
    witnesses. 970 So. 2d at 814
    .
    We found no abuse of discretion in excluding such testimony. We noted that
    expert testimony that did not require specialized knowledge was not admissible,
    and experts cannot vouch for other witnesses. 
    Id. However, in
    Boyer, the First
    District concluded that the wholesale exclusion of Dr. Ofshe’s testimony regarding
    false confessions was harmful 
    error. 825 So. 2d at 419-20
    . The district court
    - 39 -
    concluded that the jury should have been allowed to consider evidence relevant to
    the voluntariness of the defendant’s confession, and the jury was free to determine
    the credibility of Dr. Ofshe’s testimony. 
    Id. However, Dr.
    Ofshe’s excluded testimony here would have exceeded the
    scope of the testimony contemplated in Boyer. Without the limitations imposed by
    the trial court below, his testimony would have evaluated the credibility of his
    fellow witnesses, which is not permitted. 
    Frances, 970 So. 2d at 814
    ; 
    Feller, 638 So. 2d at 915
    . Unlike in Boyer, Dr. Ofshe was allowed to testify and explain how
    false confessions might occur. Where the trial court drew the line was when Dr.
    Ofshe attempted to compare different versions of the facts to each other to suggest
    that the version provided by Calloway in his confession was not reliable. Allowing
    Dr. Ofshe to explain that he determined that Calloway’s confession was false
    because it conflicted with Strachan’s descriptions of what he observed on January
    21, 1997, would have exceeded the permissible scope of expert testimony. 13 His
    opinion was not simply based upon facts and observations not before the jury, but
    instead relied upon his assessment of the credibility of witnesses and evidence that
    were before the jury. Such testimony would allow Dr. Ofshe, not the jury, to
    13. Dr. Ofshe himself admitted that he did not fully understand Calloway’s
    confession and description of his confession in their 2001 interview until after he
    learned about Strachan’s observations and Cooper’s note several years after the
    interview.
    - 40 -
    determine which version of the facts was correct by implying that Strachan
    provided a more reliable account than Calloway himself provided to the police
    after his 1998 arrest. See 
    Frances, 970 So. 2d at 814
    . Therefore, we conclude that
    the trial court did not abuse its discretion when it placed these specific limitations
    on the testimony of Dr. Ofshe.
    Cross-Examination of Odom
    Calloway next alleges that the trial court improperly limited the scope of
    cross-examination of Diane Odom, who was Calloway’s girlfriend at the time of
    his arrest and who testified during the State’s case-in-chief. Calloway spoke to
    Odom on the phone on the morning of his confession, and she came to the police
    station that morning at his request. She also rode in the van with Calloway and
    Detectives Law and Everett while they toured areas that Calloway visited before
    and after the murders. Calloway proffered that he told Odom that he was
    concerned for her safety and that of her family, and in response, she temporarily
    relocated her family. According to Calloway, this demonstrated the validity of the
    threats revealed by Detective Law before Calloway confessed.
    The record does not reflect the exact date of this alleged communication.
    Before trial, the State suggested that Calloway communicated these threats to
    Odom two weeks after his arrest. However, during trial, defense counsel proffered
    that Calloway informed Odom of the threats during the phone call on the morning
    - 41 -
    of his confession. Calloway himself offered conflicting testimony on this matter.
    During direct examination, he testified that when he saw her at the police station
    shortly after he confessed, he told her he needed to “get right with God,” and that
    he had a deal with Detective Law that would resolve everything within three
    months, but he did not tell her about the threats because he did not want her to
    panic. During redirect examination, however, defense counsel elicited that
    Calloway had communicated concerns for her safety at some point that day, and
    she temporarily moved out of her apartment immediately.
    During direct examination, the State asked Odom if she was afraid for her
    life when she left Calloway, Everett, and Law after the van ride:
    Prosecutor: Were you at that time, Ms. Odom told by Tavares
    Calloway that your life could be in danger?
    Odom: No. Not at that time, no.
    Prosecutor: Were you told you needed to be careful and watch out at
    that time?
    Odom: No. I don’t remember at that time. No. Not at that time.
    (Emphasis supplied.) The court sustained objections from the State when defense
    counsel asked Odom during cross-examination what she was afraid of when she
    stayed with family members of Calloway for two weeks following his arrest.
    Defense counsel argued that the earlier answer from the State’s direct examination
    opened the door to other statements made by Calloway to Odom that showed that
    - 42 -
    she was afraid. The court ruled that the witness herself added the words, “not at
    that time,” which did not amount to a door being opened to further questioning
    about hearsay statements made between Calloway and Odom. The court also
    noted that Calloway was free to recall Odom during his case, which did not occur.
    Calloway now asserts that these limitations were improper.
    Self-serving hearsay statements are generally inadmissible. Kaczmar v.
    State, 
    104 So. 3d 990
    , 1000 (Fla. 2012) (citing § 90.803(18), Fla. Stat. (2007)).
    However, if a partial statement, writing, or recording is admitted, the rule of
    completeness permits the opposing party to introduce other portions of that same
    statement, writing, or recording in the interest of fairness. 
    Id. (citing §
    90.108(1),
    Fla. Stat. (2007));14 Reese v. State, 
    694 So. 2d 678
    , 683 (Fla. 1997) (explaining
    that the statutory rule of completeness, which only governs writings or recordings,
    has been applied to testimony). This rule is not an absolute right, but rather a
    matter of fairness that falls within the discretion of the trial court. Larzelere v.
    State, 
    676 So. 2d 394
    , 402 (Fla. 1996). The trial court should consider the relative
    reliability of the complete statement in its ruling on the admissibility of the full
    statement. Jordan v. State, 
    694 So. 2d 708
    , 712 (Fla. 1997).
    14. Neither section 90.803 nor section 90.108 has been substantially altered
    since 1997, the year of these crimes.
    - 43 -
    In Reese, the defendant alleged that the trial court improperly restricted his
    cross-examination of a 
    witness. 694 So. 2d at 683
    . The witness testified during
    direct examination that she visited the defendant in jail after he had been arrested
    and he confessed to her. However, the defendant was not permitted to ask her
    about prior jailhouse conversations between them, in which she allegedly refused
    to speak to the defendant until he confessed to her. We approved the ruling of the
    trial judge, who indicated that the defendant was free to recall the witness during
    his case. 
    Id. at 683-84.
    We held that the rule of completeness was not violated
    after noting that the conversations were not directly related to each other and were
    separated by several weeks in time. Therefore, we concluded that no abuse of
    discretion occurred. 
    Id. As in
    Reese, the statements about the purported threats that would complete
    the allegedly misleading testimony of Odom may have been separated by several
    weeks in time. The State indicated that Calloway informed Odom of these threats
    two weeks after his arrest, not on the morning of May 14. Calloway also testified
    that he did not communicate the threats on the morning of May 14 because he did
    not want her to panic. However, Calloway later testified during his redirect
    examination that Odom moved out of her home on May 14, suggesting to the jury
    that the threats may have been contemporaneously communicated to Odom. This
    separation in time and apparent contradiction by Calloway as to when he informed
    - 44 -
    Odom not only render it less likely that the admission of Calloway’s complete
    statement would provide proper context for the jury, but also suggest that his
    statement is not entirely reliable. 
    Reese, 694 So. 2d at 683-84
    ; 
    Jordan, 694 So. 2d at 712
    (“The amount of time that passed between Jordan’s first statement and his
    second statement only increases the unreliability of the hearsay.”). Moreover,
    Calloway was free to recall Odom in his defense and chose not to do so.
    Therefore, we conclude that the trial court did not abuse its discretion to limit the
    cross-examination of Odom.
    Admission of Collateral Criminal Conduct
    Calloway next claims that the State improperly admitted two instances of
    collateral criminal conduct without proper foundation. According to Calloway, the
    State first improperly impeached him with evidence of a prior arrest for carrying a
    concealed firearm. During his direct testimony, Calloway explained that he mixed
    up the terms “clip” and “hammer” during his statement to Law and Everett, and the
    officers corrected him. Calloway stated, “I fired five shots and I had two left in the
    hammer. See there go my ignorance right there. I said [hammer]. So I’m thinking
    revolver. When he obviously just said clip and I tried to catch, I mean he like, you
    know the clip. And I’m like, yeah, yeah, yeah, the clip.” (Emphasis supplied.)
    The trial court agreed with the State that Calloway placed his character and
    knowledge of weapons at issue with this statement and allowed the State to ask
    - 45 -
    Calloway if he possessed a .38 caliber firearm on February 2, 1996, which he
    admitted was true. The State also asked him whether he was charged with carrying
    a concealed firearm as a result of that possession, which Calloway also admitted
    was true.
    He also alleges that the State improperly impeached him about his
    involvement in the Twin robbery with Gosha. During his interrogation, Calloway
    admitted that he and Gosha planned to rob Twin, and that Gosha was murdered a
    few days after the robbery. Calloway was initially considered a witness in the
    Gosha homicide and informed officers that he suspected Gosha was killed in
    retaliation for the Twin robbery. Before trial, the parties stipulated that they would
    not discuss the Gosha homicide before the jury.
    Calloway testified on direct examination that when he was first brought to
    the police station, he was under the impression that he would sign some paperwork
    with regard to the bench warrant, offer the police assistance with the Gosha
    investigation, and be free to leave. He explained Gosha was a friend who drove a
    nice car, but he did not judge Gosha for choices that Gosha had made in his life.
    Later, when Law entered the room on the morning of May 14, 1998, to resume
    questioning, Calloway testified that Law had a “zombie like” look upon his face
    and told Calloway that he had spoken to Gosha in a dream. Calloway replied:
    [W]ell maybe if you talk to [Gosha], he can tell you about my
    character. He can tell you what’s going on with me. He can tell you,
    - 46 -
    man I’m not that type of individual. He can tell you who killed him.
    He can tell what’s going on and he can also tell you I’m not that type
    of person.
    He also testified that he fabricated certain details about the homicides and robbery
    based on what he had seen in movies because he would not know how to rob
    someone. Furthermore, when he created the false confession allegedly in collusion
    with Law and Everett, he admitted that he knew Melvin, St. Charles, and Thomas,
    and that if he had simply robbed them, they would have been able to identify him.
    However, he added, “Anyone who knows me knows, you know you ain’t got to
    worry about me because I wasn’t living that type of life style. Not in the form of
    aggressive, ruggish, thuggish type of individual.” He also described himself as a
    hardworking individual who attended church regularly and helped supervise his
    girlfriend’s children.
    In rebuttal, the State recalled Law and Pereira to challenge Calloway’s
    account. The court agreed with the State that Calloway opened the door to further
    questioning about Gosha’s homicide and the robbery they had planned together.
    Law testified that Calloway admitted that he and Gosha planned the Twin robbery,
    during which Calloway pretended to have been a victim along with Twin. Pereira,
    who was part of the investigation team from the Miami-Dade County Police
    Department regarding the Twin robbery, confirmed Calloway’s involvement in
    - 47 -
    that robbery.15 Before Law and Pereira were recalled in rebuttal, the trial court
    instructed the jury to only consider their testimony to evaluate witness credibility
    and that Calloway was not on trial for any crimes beyond those enumerated in the
    indictment. Before this Court, Calloway asserts that the repeated references to
    collateral criminal conduct resulted in prejudicial error.
    A party can “open the door” to otherwise inadmissible evidence through
    testimony from a witness. Rodriguez v. State, 
    753 So. 2d 29
    , 42-43 (Fla. 2000). In
    the interests of fairness and “the truth-seeking function of a trial,” the opposing
    party may in turn present inadmissible evidence that qualifies, explains, or limits
    previously admitted evidence. 
    Id. We have
    approved of the admission of evidence
    of prior criminal conduct to impeach a defendant who has opened the door to such
    evidence. 
    Id. at 42.
    This door is only opened after the defendant presents
    misleading testimony, at which point the State may present evidence of prior
    criminal conduct to prevent the jury from being misled as to the defendant’s
    character. Robertson v. State, 
    829 So. 2d 901
    , 913 (Fla. 2002) (citing Bozeman v.
    State, 
    698 So. 2d 629
    , 630 (Fla. 4th DCA 1997)). However, such evidence should
    15. The State also presented Detective William Hladky from the Miami-
    Dade County Police Department, who was the lead investigator on the Twin
    robbery, but was out of town when Calloway was arrested. Pereira filled in during
    Hladky’s absence and was called to the City of Miami Police Department during
    Calloway’s interrogation. As far as Hladky knew, Calloway was simply a witness
    to the robbery.
    - 48 -
    be cautiously admitted, due to concerns that it may unfairly prejudice the
    defendant. 
    Rodriguez, 753 So. 2d at 42
    (“The issue is not always whether the door
    has been opened, but rather how wide it has been opened.”). Moreover, a criminal
    defendant who chooses to take the stand subjects his or her own credibility to
    impeachment by the prosecution. Butler v. State, 
    842 So. 2d 817
    , 827 (Fla. 2003)
    (noting that a defendant who testified on direct examination that he would never
    hurt the victim could be impeached about a prior incident in which he choked the
    victim).
    We agree with the trial court that Calloway opened the door to impeachment
    by the State on both of these issues. With respect to his prior arrest for carrying a
    concealed weapon, Calloway broadly claimed to be “ignorant” about guns. To
    prevent the jury from being misled about his familiarity with guns, the court
    permitted the State to ask whether he previously possessed and had been arrested
    for carrying a .38 caliber concealed firearm. However, the court narrowly tailored
    the admission of evidence of prior criminal conduct to Calloway’s familiarity with
    guns, which was a matter that he himself introduced, and excluded further
    evidence of his arrest record, which included more than a dozen arrests in the six
    years prior to the arrest in this case. See 
    Butler, 842 So. 2d at 827
    ; 
    Rodriguez, 753 So. 2d at 42
    -43. The trial court did not abuse its discretion when it permitted this
    narrow inquiry into his prior criminal activities.
    - 49 -
    Likewise, Calloway opened the door to cross-examination about his
    participation in the Twin robbery. He stated several times on direct examination
    that he would not know how to commit a robbery and he was not the sort of
    individual who would engage in violent criminal activity such as robbery or
    homicides. He also testified that early in the interrogation, he offered to help
    officers with the Gosha investigation. However, witnesses for the State explained
    that he actually told them that he and Gosha planned the robbery; as part of that
    plan, he pretended to be a victim of the robbery; and Gosha was probably
    murdered in retaliation for that crime. Calloway chose to testify in his defense,
    and his credibility became a critical issue in this case. We therefore conclude that
    he placed his credibility at risk of impeachment. See 
    Butler, 842 So. 2d at 827
    .
    Accordingly, we find no abuse of discretion by the trial court.
    Impeachment by Statement from Nontestifying Codefendant
    Calloway also claims that the State violated his rights under the
    Confrontation Clause when he was impeached by statements made by his
    codefendant, Clark, who did not testify during Calloway’s trial. The day before
    Calloway was arrested, Clark was arrested and confessed that both he and
    Calloway were involved in the 1997 homicides. He also admitted that Dwight
    Campbell directed them to rob the victims, but he did not expect that anyone would
    be killed. He told officers that Calloway sent him to the store during the robbery to
    - 50 -
    purchase the duct tape that was used to bind and gag the victims. He also stated
    that Calloway ordered the victims to remove their clothing to ensure that none of
    them was armed. Finally, Clark told them that Calloway was the sole shooter.
    During his confession, Calloway provided a substantially similar account to
    detectives, which was admitted into evidence during the State’s case-in-chief.
    Calloway admitted that he directed Clark to purchase something to restrain the
    victims, and that when Clark ran out of duct tape, he sent Clark back to the store to
    purchase more. He also admitted that he was the shooter. However, Calloway
    testified during direct examination that he could not remember if he had fabricated
    these details, or if officers “fed” him this information in their quest to implicate
    Campbell via Calloway’s confession.
    Before Dr. Ofshe interviewed Calloway in 2001, he asked Calloway to write
    down his account of the interrogation and confession. In the interview, Calloway
    told Dr. Ofshe that he fabricated details that involved Clark during his confession.
    Dr. Ofshe was aware that Clark had provided the police with a similar statement
    and told Calloway it seemed unlikely that he could make up such details that were
    previously provided to the police by Clark. He testified that he told Calloway to
    “think about it and see what it is that he actually knows and what it is that he’s just
    telling me.”
    - 51 -
    During his direct examination, Dr. Ofshe indicated that Calloway could have
    learned of certain details provided in his confession either from local media or
    from the interrogating officers. During cross-examination, the State asked a series
    of questions about whether contradictory statements make a confession more or
    less reliable, according to Dr. Ofshe’s theory of false confessions. The State asked
    whether Dr. Ofshe was aware that Clark had previously informed officers that he
    and Calloway sought direction from Campbell, or that Clark purchased duct tape
    on Calloway’s instructions. Dr. Ofshe admitted that it would be highly unlikely
    that Clark would provide the same details the day before Calloway allegedly
    fabricated them. He testified that the contradiction did not necessarily make
    Calloway’s account less reliable, but he admitted that when he pointed out the
    potential inconsistency, Calloway became less understandable in their interview.
    He also agreed with the State that Clark’s confession contradicted Calloway’s
    earlier statement that officers told Calloway to include them as a means to
    inculpate Campbell. Dr. Ofshe ultimately agreed that his opinion regarding
    Calloway’s confession would change if it was proven that Calloway had lied to
    him about a significant matter.
    Calloway insists that when the State impeached Dr. Ofshe with Clark’s
    statement, Calloway’s rights under the Confrontation Clause were violated. We
    review challenges based on the Confrontation Clause de novo. See McWatters v.
    - 52 -
    State, 
    36 So. 3d 613
    , 637 (Fla. 2010). The Confrontation Clause does not permit
    the admission of a confession of a nontestifying codefendant to be used
    substantively against the defendant. Bruton v. United States, 
    391 U.S. 123
    , 136-37
    (1968). Both this Court and the United States Supreme Court have explained that
    statements of a codefendant should be viewed with particular skepticism, given the
    motivation to implicate another person. Ramirez v. State, 
    739 So. 2d 568
    , 579
    (Fla. 1999) (citing Lee v. Illinois, 
    476 U.S. 530
    , 541 (1986); Farina v. State, 
    679 So. 2d 1151
    , 1155 (Fla. 1996)). In Ramirez, we concluded that it was reversible
    error to admit extensive details from a codefendant’s statement that incriminated
    
    Ramirez. 739 So. 2d at 579-81
    . Although Ramirez opened the door to limited
    questions regarding whether there was evidence that contradicted his testimony,
    the door was not so widely opened as to permit the details of the codefendant’s
    confession. 
    Id. at 580-81
    (citing Pacheco v. State, 
    698 So. 2d 593
    , 595-96 (Fla. 2d
    DCA 1997)).
    However, it is equally clear that a codefendant’s incriminating statements
    that are admitted for nonhearsay purposes, such as impeachment, do not invoke the
    protections of the Confrontation Clause. E.g., Tennessee v. Street, 
    471 U.S. 409
    ,
    414 (1985); 
    McWatters, 36 So. 3d at 637-38
    (“The Confrontation Clause ‘does not
    bar the use of testimonial statements for purposes other than establishing the truth
    of the matter asserted.’ ” (quoting Crawford v. Washington, 
    541 U.S. 36
    , 60 n.9
    - 53 -
    (2004))); see also Kansas v. Ventris, 
    556 U.S. 586
    , 594 (2009) (holding that a
    statement obtained in violation of the Sixth Amendment could nonetheless be used
    for impeachment purposes).
    In this case, limited information from Clark’s confession that incriminated
    Calloway was used to impeach Dr. Ofshe. Dr. Ofshe presented a theory on direct
    examination that Calloway could have learned many of the details provided in his
    confession from alternate sources, such as media reports or the interrogating
    officers, which would make his confession less reliable. To discredit Dr. Ofshe’s
    theory, the State asked Dr. Ofshe whether he was aware that Clark had provided a
    similar account two days before Calloway was arrested. When Dr. Ofshe admitted
    that he was aware of these statements, the State then asked Dr. Ofshe about his
    earlier statement to Calloway that pointed out the apparent contradiction, and when
    pressed, Dr. Ofshe equivocated. At one point, Dr. Ofshe stated that there could be
    other reasons for the apparent contradiction, such as memory error; however, he
    later admitted that if Calloway had indeed lied to him, Dr. Ofshe would have to
    reevaluate his assessment of Calloway and Calloway’s confession.
    Moreover, unlike in Bruton, Ramirez, or Pacheco, Clark’s full confession
    was not admitted during trial to prove Calloway’s guilt. Instead, the State used
    two specific details from Clark’s confession to conduct a narrow cross-
    examination of Dr. Ofshe to question his assessment of Calloway’s veracity, and
    - 54 -
    ultimately, Dr. Ofshe’s credibility. This use of Clark’s incriminating statements
    did not violate the Confrontation Clause. 
    Street, 471 U.S. at 414
    ; 
    McWatters, 36 So. 3d at 637-38
    .
    Bolstering of Witnesses for the State
    Next, Calloway claims that the State improperly bolstered the credibility of
    Detective Everett, one of the detectives who elicited the confession, and Fabrice
    Nelson, the lead crime scene technician. During the cross-examination of Sergeant
    Eunice Cooper, defense counsel asked her about a policy of the City of Miami
    Police Department, which required felony suspects to be handcuffed during
    transport. On redirect, Cooper explained that the policy allowed for officer
    discretion:
    Prosecutor: Was Sergeant Willie Everette [sic] at that time a capable
    police detective?
    Defense counsel: Objection. Calls for an opinion.
    Prosecutor: As a supervisor, your Honor.
    The Court: Overruled.
    Defense counsel: Character evidence of the witness. Bolstering.
    The Court: Overruled. It’s something that is of her knowledge.
    Sergeant Cooper: Yes. Sergeant Everette [sic] was a capable
    supervisor and Sergeant Everette [sic] used his discretion.
    Prosecutor: What about physically, Sergeant Cooper. Was [he] a
    physical capable adult male?
    - 55 -
    Sergeant Cooper: Yes.
    Prosecutor: Was he a confident police officer?
    Defense counsel: Objection. Relevance.
    The Court: Sustained.
    Calloway also alleges that the State improperly bolstered the testimony of
    Nelson through the cross-examination of Rupert Butcher, a fingerprint expert who
    was called by the defense. Nelson was the lead crime scene investigator in 1997
    and testified about the forensic evidence collected from the apartment during the
    State’s case-in-chief. At the time of trial, Butcher was a senior latent fingerprint
    examiner for the City of Miami Police Department, but he was not employed by
    the city in 1997 and was not involved in the investigation until 2003. He testified
    on direct examination that the manner in which duct tape was collected and
    commingled was not a standard collection procedure. During cross-examination,
    the State elicited testimony from Butcher that because he was not involved in the
    investigation until at least 2003, he had no way of knowing whether Nelson acted
    improperly. After the State confirmed with Butcher—without objection—that
    there was no reason to suggest that Nelson improperly preserved evidence or “did a
    sloppy job” in 1997, the following exchange occurred:
    Prosecutor: Didn’t Fabrice Nelson do an excellent job of collecting
    [and] preserving evidence from this scene as we can see it in State’s
    Exhibit 28.
    - 56 -
    Defense counsel: Objection. He has no way of knowing. He was not
    there. Calls for improper opinion.
    The Court: You can answer, sir if you know.
    Butcher: Again, well I wasn’t there to know exactly but based on the
    gravity or amount of evidence that he actually collected and
    processed, I would say that he did a very good job of processing the
    evidence.
    During redirect examination, defense counsel also elicited from Butcher that
    Nelson “did a very good job” preserving and documenting the evidence at the
    crime scene.
    Generally, this Court will not reverse a decision regarding the admissibility
    of evidence absent an abuse of discretion by the trial court. E.g., Hall v. State, 
    107 So. 3d 262
    , 273 (Fla. 2012) (citing Ray v. State, 
    755 So. 2d 604
    , 610 (Fla. 2000)).
    However, it is erroneous to permit a witness to comment on the credibility of
    another witness because the jury alone determines the credibility of witnesses.
    Tumblin v. State, 
    29 So. 3d 1093
    , 1101-02 (Fla. 2010); Knowles v. State, 
    632 So. 2d
    62, 65-66 (Fla. 1993); Page v. State, 
    733 So. 2d 1079
    , 1080-81 (Fla. 4th DCA
    1999) (citing Barnes v. State, 
    93 So. 2d 863
    (Fla. 1957)). Testimony from a police
    officer about the credibility of another witness may be particularly harmful because
    a jury may grant greater credibility to the officer. 
    Tumblin, 29 So. 3d at 1101-02
    (“Police officers, by virtue of their positions, rightfully bring with their testimony
    an air of authority and legitimacy. A jury is inclined to give great weight to their
    - 57 -
    opinions.” (citations and ellipses omitted)); Seibert v. State, 
    923 So. 2d 460
    , 472
    (Fla. 2006). Improper bolstering is reviewed for harmless error. See Johnson v.
    State, 
    969 So. 2d 938
    , 955 (Fla. 2007); Knowles, 
    632 So. 2d
    at 66.
    Improper bolstering can result in harmful error when the credibility of the
    bolstered witness is of critical importance to the State. The Fourth District Court
    of Appeal in Page concluded that the State allowed a police witness to improperly
    bolster the credibility of a confidential 
    informant. 733 So. 2d at 1080-81
    . The
    officer testified that the informant, who was the only witness to the alleged drug
    transaction, had previously provided “very trustworthy and reliable” information.
    
    Id. at 1081.
    The Fourth District concluded that this erroneous statement was
    reversible partially because the main goal of the defense was to question the
    credibility of that informant. 
    Id. at 1080-81;
    see also 
    Tumblin, 29 So. 3d at 1101
    -
    03 (finding an abuse of discretion to permit bolstering by a key witness).
    However, in this case, Cooper’s testimony did not constitute improper
    bolstering of Everett. Cooper was not asked whether any particular statements by
    Everett during his videotaped testimony were incorrect, unreliable, or otherwise
    untrustworthy. Instead, her testimony explained the department’s handcuff policy,
    which was a matter of officer discretion. The jury viewed videotaped testimony of
    Everett, who was then undergoing treatment for cancer and passed away by the
    time of trial. The question from the prosecutor and answer from Cooper merely
    - 58 -
    informed the jury that during Calloway’s interrogation and transport in the van,
    Everett could have handcuffed Calloway if he felt it was appropriate, but chose not
    to do so. This did not amount to improper bolstering of Everett’s credibility.
    Even if we were to conclude that this constituted bolstering, any error in
    Cooper’s testimony would be harmless. Cooper, who testified for a single day in a
    trial that lasted more than two months, provided a single statement that Everett was
    capable and used his discretion regarding the handcuff policy. Although there is a
    general concern that one officer complimenting the professional work of another
    may improperly influence the jury, see 
    Tumblin, 29 So. 3d at 1101-02
    , the
    handcuff policy only tangentially related to the main issue of the trial—whether
    Calloway’s confession was forced or coerced. It was undisputed that Calloway
    was not handcuffed during his interrogation or the van ride. Thus, whether Everett
    was capable or used his discretion with regard to the handcuff policy was irrelevant
    to the question of whether Calloway’s confession, which occurred before the
    handcuff issue during the van ride, was forced or coerced. Unlike the disputed
    testimony in Page or Tumblin, the State’s case against Calloway did not hinge on
    Everett’s credibility regarding the use of handcuffs. Therefore, we conclude that
    there is no reasonable possibility that any error in Cooper’s testimony could have
    affected the verdict. See 
    DiGuilio, 491 So. 2d at 1135
    .
    - 59 -
    Moreover, Butcher’s testimony did not constitute bolstering. Defense
    counsel sought to undermine the credibility of the forensic investigation conducted
    by Fabrice Nelson through the testimony of Butcher. Defense counsel did not
    object to several questions regarding the quality of Nelson’s work before the
    aforementioned exchange, nor did defense counsel object to later comments about
    the quality of Nelson’s work. Indeed, during redirect questioning by defense
    counsel, Butcher repeated that Nelson “did a very good job” in the 1997
    investigation. Rather than constitute improper bolstering, this exchange was the
    product of an unsuccessful attempt to attack the forensic work of Nelson. Defense
    counsel opened the door to cross-examination regarding Butcher’s opinion of
    Nelson’s conduct, and the State sought to rehabilitate Nelson’s competency. We
    conclude that the trial court did not abuse its discretion when it allowed this
    testimony.
    Burden Shifting in Guilt Phase Closing Statements
    The next issue raised is whether the State impermissibly shifted the burden
    of proof to Calloway during its guilt phase closing statements. The State began its
    guilt phase rebuttal argument with the following statement:
    We know exactly what this case comes down to. We have known this
    all along. Absolutely nothing. Nothing, nothing has changed. We are
    still here with the situation of do you believe all the evidence in this
    case of the officers and civilians alike each of them which supports
    the other[,] or do you believe his story?
    - 60 -
    Calloway objected, claiming misstatement of the evidence, which the court
    overruled; the court instructed the jury to rely on its own recollection of the
    evidence.16
    Although parties enjoy wide latitude during closing statements, they may not
    resort to improper argument. E.g., Merck v. State, 
    975 So. 2d 1054
    , 1061 (Fla.
    2007) (citing Gore v. State, 
    719 So. 2d 1197
    , 1200 (Fla. 1998)). Attorneys must
    raise contemporaneous objections to preserve the claim for appellate review. 
    Id. [W]e consistently
    have stated that proper preservation entails three
    components. First, a litigant must make a timely, contemporaneous
    objection. Second, the party must state a legal ground for that
    objection. Third, in order for an argument to be cognizable on appeal,
    it must be the specific contention asserted as legal ground for the
    objection . . . below.
    Harrell v. State, 
    894 So. 2d 935
    , 940 (Fla. 2005) (internal quotation marks and
    citations omitted) (some emphasis supplied).
    Unpreserved errors made in closing statements are reviewed for fundamental
    error. 
    Merck, 975 So. 2d at 1061
    . An error so fundamental as to require reversal
    “must reach down into the validity of the trial itself to the extent that a verdict of
    guilty could not have been obtained without the assistance of the alleged error.”
    16. Defense counsel raised two burden-shifting objections to statements
    later in the rebuttal closing statement that were overruled, but Calloway challenges
    only the statement quoted above in his appeal.
    - 61 -
    Brown v. State, 
    124 So. 2d 481
    , 484 (Fla. 1960). Fundamental error must amount
    to a denial of due process, and consequently, should be found to apply where
    prejudice follows. J.B. v. State, 
    705 So. 2d 1376
    , 1378 (Fla. 1998); see also F.B. v.
    State, 
    852 So. 2d 226
    , 229 (Fla. 2003).
    During trial, defense counsel objected to the statement, but only objected on
    the grounds of misstatement of the evidence. Therefore, Calloway did not preserve
    this issue and we review it for fundamental error. See 
    Merck, 975 So. 2d at 1061
    ;
    
    Harrell, 894 So. 2d at 940
    .
    We conclude that no fundamental error occurred during the State’s closing
    statement. This remark is the only statement that Calloway alleges shifted the
    burden from the State to prove Calloway’s guilt beyond a reasonable doubt. The
    State’s closing statement, which included both an initial and rebuttal statement,
    continued for more than a day. During this time, the State extensively reviewed all
    of the evidence placed before the jury during the two-month long trial. Cf. 
    Merck, 975 So. 2d at 1061
    (noting that a single improper argument did not mandate
    reversal). Even when viewed cumulatively with the burden-shifting objections
    Calloway subsequently raised, which he does not now challenge, this error was not
    to the level as to fundamentally deny Calloway the right to due process. See 
    J.B., 705 So. 2d at 1378
    . We therefore deny this claim.
    Substitute Medical Examiner
    - 62 -
    Calloway also claims that the State violated Calloway’s rights under the
    Confrontation Clause when it allowed a substitute medical examiner to testify. In
    support of this claim, Calloway relies upon the decision of the United States
    Supreme Court in Melendez-Diaz v. Massachusetts, 
    557 U.S. 305
    , 310-11 (2009),
    which concluded that forensic analysts who provide testimonial evidence must be
    subject to confrontation by the defendant.
    The trial court allowed Dr. Hyma to testify in place of Dr. Siebert with
    regard to the causes of death and injuries to the victims. Dr. Siebert was the
    medical examiner who performed the autopsies, but moved to North Florida by the
    time of trial. In a 2007 discovery deposition, Dr. Siebert claimed that the reason
    for his relocation was that then-Attorney General Charlie Crist had filed
    complaints against Dr. Siebert, which led to an audit of his records and a
    temporary lapse in his medical license. Dr. Siebert alleged that this investigation
    was politically motivated and a retaliation against him for a controversial decision
    he had made in an unrelated autopsy several years after these homicides, but he
    was never formally disciplined.
    Before and during trial, defense counsel objected that the State had failed to
    demonstrate that Dr. Siebert was unavailable, in violation of Crawford.17 Without
    17. The State suggested that Dr. Siebert was unavailable because he was in
    North Florida at the time: “Dr. Siebert no longer works in this jurisdiction and we
    made a choice not to bring an expert from a remote location back to this
    - 63 -
    expressly concluding that Dr. Siebert was unavailable, the trial court ruled that Dr.
    Hyma could offer his own opinion and be subject to cross-examination during trial.
    Dr. Hyma testified that he reviewed photographs and a descriptive narrative taken
    from the crime scene; body diagrams and sketches; police records; medical
    records; and Dr. Siebert’s autopsy reports to prepare his opinion regarding the
    causes of death. He testified that Dr. Siebert was part of the investigative team that
    responded to the crime scene in 1997, and a homicide officer likely attended the
    autopsies conducted by Dr. Siebert. During redirect, Dr. Hyma confirmed that he
    developed his own objective findings regarding the causes of death and stated that
    he primarily relied on photographs taken from the scene. At the conclusion of his
    testimony, the court read to the jury that the parties stipulated to the legal identity
    of the victims.
    When there is a Confrontation Clause challenge to an evidentiary ruling of a
    trial court, we conduct a de novo review. See 
    McWatters, 36 So. 3d at 637
    .
    Crawford violations are reviewed for harmless error. Barnes v. State, 
    29 So. 3d 1010
    , 1027-28 (Fla. 2010) (citing Rodgers v. State, 
    948 So. 2d 655
    , 665 (Fla.
    2006)); see also Bullcoming v. New Mexico, 
    564 U.S. 647
    , 668 n.11 (2011)
    jurisdiction to testify in this trial.” However, the State was willing to transport
    Anthony Strachan from Arizona and Dr. Richard Welner from New York to
    Florida during the guilt phase.
    - 64 -
    (suggesting that a harmless error analysis could apply to violations of the
    Confrontation Clause (citing 
    Melendez-Diaz, 557 U.S. at 329
    n.14)).
    Florida law historically permitted a substitute medical examiner to testify in
    the place of the medical examiner who performed the autopsy. See, e.g.,
    Schoenwetter v. State, 
    931 So. 2d 857
    , 870-71 (Fla. 2006) (citing Geralds v. State,
    
    674 So. 2d 96
    (Fla. 1996)); Capehart v. State, 
    583 So. 2d 1009
    , 1012-13 (Fla.
    1991) (permitting a substitute medical examiner to testify as an expert about facts
    or data that were not admitted into evidence); Ramirez v. State, 
    542 So. 2d 352
    ,
    355 (Fla. 1989). However, the United States Supreme Court in Crawford
    explained that the Sixth Amendment requires the declarant of a testimonial hearsay
    statement in a criminal case to testify at trial, unless the witness is unavailable and
    the defendant is afforded a prior opportunity to cross-examine the 
    witness. 541 U.S. at 68
    .18
    In State v. Belvin, 
    986 So. 2d 516
    (Fla. 2008), this Court reviewed the
    admissibility of forensic reports in light of Crawford. The Court concluded that
    the reports were testimonial, and their admission violated Crawford because the
    right to confront the witness during a discovery deposition was not a sufficient
    substitute for the right to confront a witness in 
    court. 986 So. 2d at 524-25
    (citing
    18. We did not consider the impact of Crawford in Schoenwetter because
    the defendant failed to preserve the issue. 
    See 931 So. 2d at 871
    .
    - 65 -
    State v. Lopez, 
    974 So. 2d 340
    , 349-50 (Fla. 2008); Blanton v. State, 
    978 So. 2d 149
    , 155 (Fla. 2008)).
    In 2009, the Supreme Court concluded in Melendez-Diaz that affidavits
    prepared by forensic technicians were testimonial under Crawford. Therefore, the
    defendant had the right under the Confrontation Clause to confront the analysts
    who prepared the affidavits, absent (1) a finding that the analysts were unavailable,
    and (2) the defendant’s having had a prior opportunity to cross-examine 
    them. 557 U.S. at 311
    .
    This Court subsequently distinguished both Belvin and Melendez-Diaz and
    approved of the testimony of a supervising witness who offered her own opinion
    based on data generated by a team of analysts. Smith v. State, 
    28 So. 3d 838
    , 853-
    55, 855 n.12 (Fla. 2009). The trial court in that case permitted an FBI team
    supervisor to testify about her conclusion that a DNA sample matched the known
    profile of the defendant. 
    Id. at 853.
    This Court explained that unlike the experts in
    Belvin or Melendez-Diaz, the expert in Smith drew her own conclusions from the
    raw data generated by several members of her team and—more importantly—
    testified during trial, where she was subject to cross-examination as to those
    
    conclusions. 28 So. 3d at 854-55
    . Therefore, her testimony did not violate the
    Confrontation Clause. 
    Id. - 66
    -
    Following Melendez-Diaz, the United States Supreme Court further
    elaborated on the admissibility of forensic laboratory reports in Bullcoming, 
    564 U.S. 647
    , and Williams v. Illinois, 
    132 S. Ct. 2221
    (2012). In Bullcoming, a
    majority of the Court held that a surrogate testifying witness could not be used to
    admit a forensic report written by a nontestifying 
    technician. 564 U.S. at 663
    . In
    that case, the original analyst who had performed a blood alcohol content test was
    unexpectedly placed on unpaid leave on the eve of trial, but the prosecution did not
    claim that the analyst was unavailable. 
    Id. at 661-62.
    In criticizing the use of
    testimony from a surrogate witness who did not offer an independent opinion,
    defense counsel was denied the opportunity to question the original analyst about
    the procedures used, or explore why the analyst had been placed on unpaid leave.
    
    Id. The Court
    concluded that testimony from the surrogate witness did not cure the
    underlying violation of Bullcoming’s right under the Sixth Amendment to confront
    the original analyst. 
    Id. at 663.
    In a concurring opinion, Justice Sotomayor emphasized the narrow scope of
    Bullcoming:
    [T]his is not a case in which the person testifying is a supervisor,
    reviewer, or someone else with a personal, albeit limited, connection
    to the scientific test at issue. . . . It would be a different case if, for
    example, a supervisor who observed an analyst conducting a test
    testified about the results or a report about such results. . . .
    . . . [T]his is not a case in which an expert witness was asked
    for his independent opinion about underlying testimonial reports that
    were not themselves admitted in evidence. See Fed. Rule Evid. 703
    - 67 -
    (explaining that facts or data of a type upon which experts in the field
    would reasonably rely in forming an opinion need not be admissible
    in order for the expert’s opinion based on the facts and data to be
    admitted). . . . We would face a different question if asked to
    determine the constitutionality of allowing an expert witness to
    discuss others’ testimonial statements if the testimonial statements
    were not themselves admitted as evidence.
    ....
    This case does not present, and thus the Court’s opinion does
    not address, any of these factual scenarios.
    
    Id. at 672
    (Sotomayor, J., concurring in part). Four Justices dissented on the basis
    that they concluded that the evidence was not testimonial under the Confrontation
    Clause. 
    Id. at 674-84
    (Kennedy, J., dissenting).
    In Williams, a plurality of the Supreme Court concluded that an expert
    witness could offer an opinion about a forensic report without ultimately testifying
    to the underlying truth of that 
    report. 132 S. Ct. at 2227-28
    . The report itself was
    prepared by a nontestifying witness, but was not admitted. 
    Id. The plurality,
    written by Justice Alito and joined by Chief Justice Roberts and Justices Kennedy
    and Breyer, further held that the report itself would not have violated the
    Confrontation Clause, even if it had been admitted. 
    Id. at 2242.
    The plurality
    concluded that the report was not testimonial because it was generated at a time
    when a dangerous, unknown rapist was at large. 
    Id. at 2243-44
    (citing Michigan v.
    - 68 -
    Bryant, 
    562 U.S. 344
    , 359-62 (2011)).19 Justice Thomas concurred in the
    judgment on the basis that the evidence was admissible “solely because [the report]
    lacked the requisite ‘formality and solemnity’ to be considered ‘testimonial’ for the
    purposes of the Confrontation Clause.” 
    Id. at 2255
    (Thomas, J., concurring in the
    judgment) (citing 
    Bryant, 562 U.S. at 361
    ).
    With the exception of Smith, this Court has not considered whether a
    substitute forensic technician, specifically a medical examiner, may testify in the
    wake of Melendez-Diaz, Bullcoming, and Williams. Despite the lack of a clear
    majority opinion in Williams, the factual similarities between this case and
    Williams, as well as our decision in Smith, lead us to conclude that the surrogate
    testimony of Dr. Hyma did not violate Calloway’s rights under the Confrontation
    Clause. First, Dr. Hyma was available during trial to testify and was subject to
    cross-examination. See 
    Smith, 28 So. 3d at 853-55
    , 855 n.12. Second, unlike in
    Bullcoming, the autopsy reports of Dr. Siebert were not admitted through the
    testimony of Dr. Hyma. See 
    Williams, 132 S. Ct. at 2238-40
    (plurality opinion)
    (finding no Confrontation Clause violation in the admission of an expert opinion
    that relies upon data not directly in evidence); 
    Bullcoming, 564 U.S. at 668
    19. In Bryant, the Court explained that statements made to an officer in the
    course of an active police investigation were not testimonial and therefore not
    subject to the Confrontation Clause because the primary purpose of such
    statements was to assist the police in that 
    investigation. 562 U.S. at 359-62
    .
    - 69 -
    (Sotomayor, J., concurring in part). Instead, Dr. Hyma clearly explained to the
    jury that his independent opinion was derived from the photographs taken by
    investigators at the scene and from Dr. Siebert’s autopsy reports. It was this
    independent opinion that was available during trial and subject to cross-
    examination. See 
    Smith, 28 So. 3d at 853-55
    . Although the expert in Smith
    supervised several analysts, both the expert in Smith and Dr. Hyma testified that
    they drew their own independent conclusions. See 
    id. Therefore, Calloway
    was
    afforded the in-court opportunity to cross-examine the State’s expert about the
    causes of death, and no violation of the Confrontation Clause occurred.
    Even if we were to conclude that an error occurred, it would be harmless.
    The sole purpose of producing Dr. Siebert in this case would be to impugn his
    credibility by asking about the 2006 audit of his records, which Dr. Siebert claimed
    had been politically motivated and baseless. During his discovery deposition, Dr.
    Siebert claimed that many of the errors he had supposedly committed were typos
    and did not undermine his medical findings; however, defense counsel pointed to
    at least one instance in which he allegedly mistook the gender of a cadaver.
    Regardless of such disputes, in this case, the causes of death were not challenged,
    and the parties stipulated to the legal identity of the victims.20 Furthermore, Dr.
    20. Additionally, had Dr. Siebert testified, it may have resulted in a
    collateral discussion as to whether he actually committed significant errors
    throughout his career. The ultimate result of the audit was unclear: Dr. Siebert
    - 70 -
    Hyma’s testimony was a relatively short component of a lengthy guilt phase of a
    trial that spanned more than two months. We conclude that any error in allowing
    Dr. Hyma to testify in Dr. Siebert’s place had no reasonable possibility of affecting
    the verdict and was therefore harmless. See 
    Barnes, 29 So. 3d at 1027-28
    ;
    
    DiGuilio, 491 So. 2d at 1135
    .
    Limitations on Penalty Phase Closing Statement
    The next issue that Calloway challenges is the limitation imposed on defense
    counsel during the closing statement of the penalty phase. The only new evidence
    that the State presented during the penalty phase consisted of victim impact
    testimony; the State presented no further evidence of aggravating circumstances
    beyond Calloway’s conviction. During closing statements of the penalty phase, the
    following exchange occurred:
    Defense Counsel: . . . We’re here now to discuss the aggravators. We
    are here to discuss how the aggravators were proven to and we are
    here to discuss have you really heard sufficient reliable evidence
    beyond a reasonable doubt that these aggravators have occurred . . . .
    One of the aggravators is that the crime was cold, calculated[,] and
    premeditated. . . . Let’s look at what was presented to prove it was
    cold, calculated[,] and premeditated.
    Well, we are told that it went on over a period of time. We are
    told that someone left and got tape and came back, we’re told all of
    claimed that he was never formally disciplined, but admitted that he was removed
    from his professional position. See 
    Williams, 132 S. Ct. at 2236
    (plurality opinion)
    (expressing concern about potential juror confusion).
    - 71 -
    these facts but other than what Mr. Calloway said in that statement
    there is no corroborating evidence—
    State: Objection.
    The Court: Sustained.
    Defense Counsel: —to prove the aggravators.
    The Court: The jury is to rely on the recollection of the evidence
    presented.
    Defense Counsel: Well, as you rely on it, as you rely on what you
    heard, you will recall that there was nothing to corroborate—
    State: Objection.
    The Court: Sustained.
    In a subsequent sidebar conference, defense counsel claimed that there was
    no evidence to corroborate certain details in Calloway’s confession, such as the
    length of time the victims were held captive and duct-taped by Calloway and
    Clark. The trial court disagreed with that assessment of the evidence in record,
    sustained objections from the State, and instructed the jury to rely on its
    recollection of the evidence.
    Before this Court, the parties dispute whether this limitation was proper.
    Calloway asserted that the trial court improperly curtailed statements by defense
    counsel that challenged whether the State had proven the HAC and CCP
    aggravating circumstances beyond a reasonable doubt. The State claimed instead
    that the trial court properly prevented defense counsel from relitigating the guilt
    - 72 -
    phase because defense counsel sought to establish a lack of evidence that
    corroborated Calloway’s confession.
    Parties are afforded wide latitude during their closing statements, subject to
    the discretion of the trial court. See, e.g., Pham v. State, 
    70 So. 3d 485
    , 492 (Fla.
    2011). During the penalty phase, the State is required to establish aggravating
    circumstances beyond a reasonable doubt. Gonzalez v. State, 
    990 So. 2d 1017
    ,
    1029 (Fla. 2008). Although defendants are permitted to challenge evidence of
    aggravating circumstances presented by the State, they cannot do so in a way that
    relitigates the underlying determination of guilt by the jury. Duest v. State, 
    855 So. 2d 33
    , 40 (Fla. 2003) (citing Way v. State, 
    760 So. 2d 903
    , 916 (Fla. 2000);
    Waterhouse v. State, 
    596 So. 2d 1008
    , 1015 (Fla. 1992)). A defendant may not
    introduce evidence of residual doubt either to challenge a presented aggravating
    circumstance or establish a nonstatutory mitigating circumstance. E.g., Reynolds
    v. State, 
    934 So. 2d 1128
    , 1152 (Fla. 2006) (noting that this Court has long rejected
    the use of lingering doubt as a nonstatutory mitigating factor); 
    Duest, 855 So. 2d at 40
    (barring the use of a residual doubt argument to challenge an aggravating
    circumstance); see also Oregon v. Guzek, 
    546 U.S. 517
    , 526-27 (2006) (refusing to
    recognize a constitutional right to consider residual doubt as mitigation evidence).
    In England v. State, 
    940 So. 2d 389
    , 404-05 (Fla. 2006), the defendant
    sought to testify on his behalf during the penalty phase. The trial court excluded
    - 73 -
    this testimony after it concluded that the testimony would relitigate the matter of
    his guilt, rather than present relevant, mitigating evidence. 
    Id. We concluded
    that
    this was not an abuse of discretion. 
    Id. Here, Calloway
    asserts that defense counsel did not attempt to relitigate his
    guilt during penalty phase closing statements; rather, defense counsel sought to
    challenge whether the State had proven the HAC and CCP aggravating
    circumstances beyond a reasonable doubt. However, defense counsel presented no
    specific precedent either during trial or before this Court to support his claim that
    he could challenge the HAC and CCP aggravating circumstances by questioning
    the reliability of Calloway’s confession presented during the guilt phase in the
    closing statements of the penalty phase. This proposed argument was not only an
    inaccurate description of the evidence in record, as noted by the trial court, but it
    also sought to undermine an issue determined in the guilt phase, the validity of
    Calloway’s confession. The trial court did not prevent defense counsel from
    making proper arguments before the jury. Therefore, we conclude that the trial
    court acted within its discretion to prevent this improper argument. 
    England, 940 So. 2d at 404-05
    ; 
    Duest, 855 So. 2d at 40
    .
    Exclusion of Medical Records of Calloway’s Father
    Next, Calloway submits that the trial court improperly excluded the medical
    records of his father, Solomon Calloway, as mitigation. When Calloway was five
    - 74 -
    or six years old, his mother took him and his brother Reginald to live in Miami,
    and his father remained in Georgia. Solomon was diagnosed with schizophrenia
    and post-traumatic stress disorder (PTSD) in 2002, while Calloway was in custody
    and awaiting this trial. The day before the penalty phase commenced, defense
    counsel presented the State with voluminous evidence of Solomon’s medical
    records. Defense counsel hoped to discuss Solomon’s diagnoses to explain his
    bizarre behavior towards, and ultimate abandonment of, Calloway. The trial court
    allowed defense counsel to present evidence of Solomon’s violence towards
    Calloway and his mother, and his abandonment of his children, but excluded
    Solomon’s medical records as irrelevant. Calloway argues before this Court that
    this exclusion improperly limited his presentation of mitigation evidence.
    In Lockett v. Ohio, 
    438 U.S. 586
    , 604-05 (1978), the Supreme Court
    concluded that a defendant must be permitted to present any mitigating evidence
    that concerns “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.” More recently, the Court rejected a test that required proposed
    mitigating evidence to have some “nexus” to the underlying crime to be relevant
    and therefore admissible. Tennard v. Dretke, 
    542 U.S. 274
    , 283-88 (2004).
    Instead, the Court explained that there was no unique definition of relevancy
    applicable to capital sentencing:
    - 75 -
    When we addressed directly the relevance standard applicable
    to mitigating evidence in capital cases in McCoy v. North Carolina,
    
    494 U.S. 433
    , 440-441, (1990), we spoke in the most expansive terms.
    We established that the meaning of relevance is no different in the
    context of mitigating evidence introduced in a capital sentencing
    proceeding than in any other context, and thus the general evidentiary
    standard—any tendency to make the existence of any fact that is of
    consequence to the determination of the action more probable or less
    probable than it would be without the evidence—applies. . . . We
    quoted approvingly from a dissenting opinion in the state court:
    “Relevant mitigating evidence is evidence which tends logically to
    prove or disprove some fact or circumstance which a fact-finder could
    reasonably deem to have mitigating value.” Thus, a State cannot bar
    the consideration of evidence if the sentencer could reasonably find
    that it warrants a sentence less than death.
    Once this low threshold for relevance is met, the Eighth
    Amendment requires that the jury be able to consider and give effect
    to a capital defendant’s mitigating evidence.
    
    Id. at 284-85
    (some citations omitted).
    We have reiterated the role that relevance plays in the admission of
    potentially mitigating evidence. Farina v. State, 
    937 So. 2d 612
    , 619 (Fla. 2006)
    (“As with all evidence, however, mitigating evidence must meet a threshold of
    relevance.”). Similarly, in Hill v. State, 
    515 So. 2d 176
    , 177-78 (Fla. 1987), this
    Court found no abuse of discretion by a trial court’s exclusion of mitigating
    evidence that concerned the character of the defendant’s family members, rather
    than the character of the defendant himself:
    The record reflects that five persons, including Hill’s mother and
    father, testified as character witnesses for the defense. The judge
    refused to permit appellant’s mother to testify that she cared for
    appellant’s cousins, as well as her own children. Similarly, the judge
    declined to allow defense counsel to question appellant’s father
    - 76 -
    regarding his own ill health and past job responsibilities. In our view,
    the excluded evidence focused substantially more on the witness’s
    character than on appellant’s. There has been no showing that the
    trial court abused his discretion in excluding the testimony . . . .
    
    Id. (emphasis supplied)
    (citing Hitchcock v. Dugger, 
    481 U.S. 393
    (1987); Eddings
    v. Oklahoma, 
    455 U.S. 104
    (1982); Lockett, 
    438 U.S. 586
    ); see also Hess v. State,
    
    794 So. 2d 1249
    , 1269 (Fla. 2001) (“What Lockett does require is the admission of
    evidence that establishes facts relevant to the defendant’s character, his prior
    record, and the circumstances of the offense in issue.”).
    Although the trial court did not allow defense counsel to present evidence of
    Solomon’s medical diagnoses, defense counsel were permitted to elicit vivid,
    undisputed21 testimony about the abuse Calloway and his mother suffered at the
    hands of Solomon, including that (1) Solomon attempted to drown Shirley in a
    bathtub when Calloway was an infant; (2) Solomon regularly visited the trailer that
    Shirley lived in with Calloway and beat both of them with a switch; and (3) once
    when Calloway was a toddler, he handed his mother a bat to defend herself against
    Solomon. After Shirley relocated her children to Miami, Calloway had little
    contact with his father.
    21. Although Calloway suggests that Shirley’s history of drug abuse and
    neglect may have diminished her credibility before the jury, the State minimally
    challenged her testimony with limited cross-examination.
    - 77 -
    The trial court drew the line at the introduction of evidence of Solomon’s
    medical diagnoses, which were not made until 2002, several years after Calloway
    was arrested in 1998 and long after he lost contact with his father in the 1980s.
    Furthermore, during trial, defense counsel only provided Solomon’s medical
    records to the State on the eve of opening statements for the penalty phase. In its
    ruling to exclude the records, the court noted that the State had been denied a fair
    opportunity to review the evidence and prepare a rebuttal. Defense counsel also
    admitted that they could not prove that Solomon’s violent behavior in the 1980s
    resulted from either diagnosis. Additionally, Calloway did not present any
    evidence during the penalty phase that suggested that he suffered from mental
    health issues himself. Calloway only presented Dr. Toomer during the Spencer
    hearing, who testified that Calloway’s background likely diminished his cognitive
    processing, but ultimately offered no medical diagnosis for Calloway.
    We conclude that Solomon’s medical diagnoses were not relevant to
    Calloway’s background. The fact that Solomon was diagnosed with schizophrenia
    and PTSD decades after abusing Calloway and Shirley does not make the
    uncontroverted fact that Calloway both witnessed and suffered abuse from
    Solomon more or less probable. See § 90.401, Fla. Stat. (1997) (“Relevant
    evidence is evidence tending to prove or disprove a material fact.”). The jury
    heard unchallenged evidence regarding Solomon’s abusive behavior, which is a
    - 78 -
    mitigating factor in Calloway’s background. See 
    Lockett, 438 U.S. at 604-05
    .
    However, the ultimate cause of that behavior pertained to the character of
    Solomon, not Calloway. See 
    Hill, 515 So. 2d at 177-78
    . Therefore, Solomon’s
    medical records were not relevant mitigating evidence of Calloway’s background,
    and the trial court did not abuse its discretion to exclude them.
    Sufficiency
    Although Calloway does not raise the issue, this Court has an independent
    obligation to review the record for competent, substantial evidence that supports
    the defendant’s convictions. E.g., Brown v. State, 
    143 So. 3d 392
    , 407 (Fla. 2014)
    (citing Blake v. State, 
    972 So. 2d 839
    , 850 (Fla. 2007); Fla. R. App. P.
    9.142(a)(5)). If a rational trier of fact may conclude, upon a review of the evidence
    in the light most favorable to the State, that the elements of the crime have been
    proven beyond a reasonable doubt, we will affirm the convictions. 
    Id. Calloway’s confession
    constitutes direct evidence of guilt under Florida law.
    Simmons v. State, 
    934 So. 2d 1100
    , 1111 (Fla. 2006). Although his testimony
    challenged that confession, it is the duty of the jury, not this Court, to weigh
    conflicting evidence. See Hertz v. State, 
    803 So. 2d 629
    , 646 (Fla. 2001).
    Calloway admitted that he purchased clothing and planned the robbery with
    Campbell several days before the crimes occurred. After he and Clark subdued,
    gagged, and blindfolded Melvin, Copeland, Thomas, McGuire, and St. Charles
    - 79 -
    with duct tape, he and Clark debated for some period of time about which men to
    kill. Calloway sent Clark to speak to Campbell for advice, and when Clark
    informed him that Campbell said they only needed to kill two men, Calloway
    replied that if only two were killed, the remaining men would identify them. Clark
    returned to Campbell, who approved of killing all of the men, and before executing
    them, Calloway increased the volume of the stereo to muffle the sound of
    gunshots.
    Additionally, Calloway confessed that he accosted St. Charles in the parking
    lot, placed St. Charles in a chokehold, and gained entry to St. Charles’s apartment
    with a .45 caliber gun pointed at St. Charles. He further stated that he and Clark
    took marijuana, jewelry, phones, beepers, and cash from the victims before they
    exited the apartment. Anthony Strachan also testified that he saw St. Charles
    downstairs in the parking lot with two unidentified black men, one of whom he
    later saw exit St. Charles’s apartment with a small box that belonged to St. Charles.
    Latonya Taylor stated that Melvin frequently wore a gold and diamond bracelet
    that she never saw after his death. Adolphus Thornton testified that he helped
    Calloway pawn a distinctive gold bracelet that he recognized as Melvin’s a few
    days after the murders. Calloway’s confession, coupled with corroborating
    testimony from Strachan, Taylor, and Thornton, supplied competent, substantial
    evidence of the first-degree murders of Melvin, Thomas, Copeland, St. Charles,
    - 80 -
    and McGuire, as well as for the convictions for armed robbery, armed kidnapping,
    and armed burglary.
    Hurst v. Florida
    Finally, Calloway asserts that Florida’s death penalty sentencing scheme,
    which allows a non-unanimous jury to recommend the death penalty, violates the
    Sixth and Fourteenth Amendments under Apprendi v. New Jersey, 
    530 U.S. 466
    (2000), and Ring v. Arizona, 
    536 U.S. 584
    (2002). During the pendency of this
    appeal, the United States Supreme Court issued its decision in Hurst v. Florida, in
    which it held that Florida’s capital sentencing scheme violated the Sixth
    Amendment. See 
    136 S. Ct. 616
    , 621 (2016). The Supreme Court concluded that
    “[t]he Sixth Amendment requires a jury, not a judge, to find each fact necessary to
    impose a sentence of death. A jury’s mere recommendation is not enough.” 
    Id. at 619.
    On remand from the Supreme Court, we held that “before a sentence of death
    may be considered by the trial court in Florida, the jury must find the existence of
    the aggravating factors proven beyond a reasonable doubt, that the aggravating
    factors are sufficient to impose death, and that the aggravating factors outweigh the
    mitigating circumstances.” Hurst v. State (Hurst v. State), 
    202 So. 3d 40
    , 53 (Fla.
    2016). We further held that a unanimous jury recommendation is required before a
    trial court may impose a sentence of death. See 
    id. Finally, we
    determined that a
    Hurst error is capable of harmless error review. See 
    id. at 67.
    - 81 -
    New rules of law announced by this Court or the United States Supreme
    Court will apply to all cases that are pending on direct review or are otherwise not
    finalized. State v. Johnson, 
    122 So. 3d 856
    , 861 (Fla. 2013) (citing Griffith v.
    Kentucky, 
    479 U.S. 314
    , 328 (1986); Smith v. State, 
    598 So. 2d 1063
    , 1066 (Fla.
    1992)). This case is before us on direct appeal; therefore, Calloway’s appeal is
    subject to Hurst v. Florida and Hurst v. State.
    For the reasons expressed in Hurst v. State, Calloway is entitled to a new
    penalty phase. The jury in this case made no factual findings regarding the
    aggravation, mitigation, or relative weight of either before it recommended that
    Calloway be sentenced to death for each victim by a vote of seven to five. His
    sentences, therefore, are contrary to the Sixth Amendment as interpreted Hurst v.
    Florida and Hurst v. State. Further, we cannot conclude that this error was
    harmless beyond a reasonable doubt in light of the nonunanimous jury
    recommendation. Compare Hurst v. 
    State, 202 So. 3d at 53-55
    (concluding that a
    new penalty phase was required following a seven-to-five jury recommendation of
    a death sentence) with King v. State, SC14-1949, slip op. at 41-48 (Fla. Jan. 26,
    2017) (noting that any Hurst v. Florida sentencing error was harmless beyond a
    reasonable doubt in part because the jury unanimously recommended a death
    sentence). As in Hurst v. State, “We decline to speculate as to why seven jurors in
    this case recommended death and why five jurors were persuaded that death was
    - 82 -
    not the appropriate 
    penalty.” 202 So. 3d at 69
    . Therefore, we must remand this
    matter for new penalty phase. See 
    id. CONCLUSION With
    regard to the State’s cross-appeal, we conclude that the trial court erred
    when it failed to conduct a Frye hearing before Dr. Ofshe was permitted to testify,
    but this error was harmless. We also reject Calloway’s guilt phase claims and
    conclude that sufficient evidence supported his convictions. We further conclude
    that, with the exception of the Hurst v. Florida claim, Calloway’s penalty phase
    claims are meritless. However, we reverse and remand this matter to the circuit
    court for a new penalty phase pursuant to Hurst v. State.
    It is so ordered.
    LABARGA, C.J., and PARIENTE, LEWIS, and QUINCE, JJ., concur.
    POLSTON, J., concurs as to the conviction and dissents as to the sentence.
    PERRY, Senior Justice, concurs in result as to the conviction and concurs in part
    and dissents in part as to the sentence.
    CANADY, J., concurs in result as to the conviction and dissents as to the sentence.
    NOT FINAL UNTIL TIME EXPIRES TO FILE REHEARING MOTION, AND
    IF FILED, DETERMINED.
    An Appeal from the Circuit Court in and for Miami-Dade County,
    Dava J. Tunis, Judge - Case No. 131998CF016016000XX
    Scott William Sakin of Scott W. Sakin, P.A., Miami, Florida,
    for Appellant/Cross-Appellee
    Pamela Jo Bondi, Attorney General, Tallahassee, Florida, and Melissa Jean Roca,
    Assistant Attorney General, Miami, Florida,
    - 83 -
    for Appellee/Cross-Appellant
    - 84 -