State of Iowa v. Chico Newman ( 2015 )


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  •                     IN THE COURT OF APPEALS OF IOWA
    No. 13-1640
    Filed September 10, 2015
    STATE OF IOWA,
    Plaintiff-Appellee,
    vs.
    CHICO NEWMAN,
    Defendant-Appellant.
    ________________________________________________________________
    Appeal from the Iowa District Court for Des Moines County, John G. Linn,
    Judge.
    Chico    Newman      appeals   his   conviction   for   first-degree   murder.
    AFFIRMED.
    Mark C. Smith, State Appellate Defender, and Theresa R. Wilson,
    Assistant Appellate Defender, for appellant.
    Chico Newman, Fort Madison, appellant pro se.
    Thomas J. Miller, Attorney General, Kevin Cmelik and Sharon K. Hall,
    Assistant Attorneys General, Patrick C. Jackson, County Attorney, and Lisa K.
    Schaefer and Tyrone Rogers, Assistant County Attorneys, for appellee.
    Heard by Tabor, P.J., and Bower and McDonald, JJ.
    2
    BOWER, J.
    Following a jury trial, Chico Newman was convicted of the first-degree
    murder of his wife, Crystal Newman. Chico’s primary defense theory was Crystal
    committed suicide after they argued over her infidelity. Alternatively, he claimed
    Crystal’s paramour, Joshua Patrick, killed Crystal. On appeal, Chico claims (1)
    the State presented insufficient evidence to convict him and (2) the district court
    abused its discretion in allowing officers to testify to other suicide scenes
    involving women and firearms. In a pro se brief, Chico raises additional claims.
    We affirm the conviction.
    I. Background Facts and Proceedings
    Crystal and Chico lived in Burlington, Iowa. At the time of her death in the
    early morning hours of August 9, 2012, Crystal and Chico had been married
    fourteen years and had two children, T.N. and N.N., ages nine and eight.
    Crystal’s mother, Jean Johnson, was divorced from Crystal’s father, Ron
    Johnson. Jean testified, after Crystal and Chico were married, Chico restricted
    Crystal’s communication with Jean.       In 2010 Jean sent Crystal a card for
    Mother’s Day; in response, Jean received a hostile phone call from Chico, who
    told her “it was his family, and that it was not [Jean’s] business to be looking for
    them, contacting” Crystal. Chico “was just quite angry that I was doing searches”
    and told Jean “there would be consequences for [her] actions” if she continued
    contacting Crystal.
    In contrast, Ron testified he had a good relationship with Chico. However,
    Ron did not get to see Crystal as much as he would have liked after the couple
    3
    married, and she was quieter when Chico was with her. Ron also testified, when
    Crystal was visiting by herself “she received a lot of phone calls from Chico just
    wanting to know where she was and what she was doing.” Ron explained Chico
    would call Crystal “every couple of hours,” which was “a bit much.”
    In 2010 Crystal started working as a shift manager at a Burlington
    McDonald’s. Kathleen Armstrong testified Crystal was her trainer and mentor at
    McDonald’s.    Armstrong saw Crystal on the evening she died and testified
    Crystal was “just happy, thoroughly happy.”      Joshua Patrick also worked at
    McDonald’s. During the summer of 2011, Patrick started seeing Crystal outside
    of work while Chico was away and after the children had gone to bed. Patrick
    would come over and talk to Crystal on her enclosed sun porch. Once during the
    winter months, Patrick went inside and used the bathroom but that was the only
    time Patrick was inside Crystal’s house.     After about six months, a physical
    relationship developed between Patrick and Crystal, which led to sex on the sun
    porch during the spring and summer of 2012.
    Kristen Huber, Crystal’s friend since high school, testified after Crystal
    married Chico she was less outgoing and more paranoid if he was around.
    Approximately six months before Crystal died, Huber and Chico had their only
    “one on one” conversation when an angry Chico left a message on Huber’s
    phone and she returned his call. Chico expressed his unhappiness that Huber
    “was talking to Crystal,” and told Huber he had blocked Huber’s number from
    Crystal’s cell phone. During the conversation, he eventually calmed down, and
    by the end of the conversation, he had agreed to unblock Huber’s number.
    4
    Huber knew Crystal was having a relationship with a coworker but did not
    know the coworker’s name. Because Chico checked Crystal’s phone records,
    Crystal provided Patrick’s cell number to Huber and arranged for Huber to be the
    intermediary and send text messages to Patrick’s cell phone. Huber explained
    Crystal would text her to, “tell him to come over or tell him not to come over.”
    Meanwhile, in February 2012 Chico started an online relationship through
    a date-hookup site with Lynsey Surridge, who lived in the state of Washington.
    After about one month, Lynsey and Chico were exchanging daily text messages
    and phone calls. According to Lynsey, their conversations eventually got more
    serious.   Despite the fact they had never met in person, Lynsey and Chico
    started talking about a future relationship and “being together.” At trial, Chico
    admitted he did not tell Lynsey he was married and had children.
    Chico worked in Texas during the summer of 2012. In early July 2012,
    about one month before Crystal’s death and while he was driving from Texas to
    Burlington, Chico called Crystal’s father. Ron testified Chico was very upset and
    told him he believed Crystal was having an affair. When Ron stated he did not
    know anything about an affair, Chico replied, if it were true, “there would be
    consequences.”
    About two weeks before her death, Crystal told Patrick she was
    contemplating a divorce. Patrick heard Crystal’s side of a phone call and also
    overheard Chico saying “he just wanted the money and didn’t care, that’s all he
    wanted.” At trial, Patrick, who was younger than Crystal, denied having any
    future plans with her.
    5
    Twelve days before she died, Crystal called Jean, stating “she was so
    sorry,” she loved Jean, she was “going to discuss divorce with Chico, and we’ve
    already discussed it over the phone, but I’m going to tell him that it’s going to
    happen.” Ron watched the kids over a weekend so Crystal could discuss a
    divorce with Chico. Ron was concerned about Chico’s potential reaction, so he
    asked Crystal if he should go with her for the discussion. Crystal replied, “No.
    That would just cause more trouble.” According to Ron, when Crystal returned to
    pick up the kids, “she was happy, because Chico said that, you know, they could
    start a divorce, and he [wanted] to work on the marriage.”
    Six days before she died, a “very happy” Crystal called Jean and told her
    “she would be calling [Jean] as least once a week to check in and see how things
    were going.” They discussed getting together for T.N.’s birthday the next week
    or getting together soon after the birthday.
    On August 2, 2014, Crystal met with Burlington attorney William Monroe III
    to discuss a divorce. Monroe observed Crystal was “extraordinarily focused” and
    determined to obtain a divorce. Crystal was adamant about having physical care
    of the children and wanted to keep Chico’s child support payments low. Monroe
    formed the impression Crystal had discussed the divorce with Chico and he had
    acquiesced.
    A few days before August 8, 2012, Crystal told co-worker William Hoskins
    she was getting a divorce. On August 8 Crystal asked Hoskins to help her find a
    new residence because “she was just leaving. She couldn’t do it anymore. She
    needed a new place to live.” Hoskins promised to bring information to work the
    6
    next day. While at McDonald’s, Crystal also talked to Patrick. They agreed to
    meet that evening.
    At trial, the children testified to going upstairs to their bedrooms between
    8:30 and 9:00 p.m. N.N., whose bedroom is closest to the stairs, heard doors
    opening and closing after he went to bed. N.N. thought someone could be in the
    house. When N.N. went downstairs to tell his mom about something he had
    heard on the radio, he saw the door to the dining room was shut and thought it
    odd. N.N. went back upstairs and fell asleep. N.N. woke up and saw his dad
    walking up the steps around 11:00 p.m. N.N. said hello, and Chico replied. N.N.
    testified he could see into the upstairs bathroom and saw Chico taking a shower
    while Crystal folded laundry in the bathroom.1 N.N. fell back asleep, and he did
    not hear his parents arguing or hear any loud noises.
    Crystal texted Huber at 11:24 p.m. on August 8: “Tell him not to come; he
    is home.” Huber then forwarded one last text message to Patrick, “do not come
    over.” Because Patrick had fallen asleep, he did not see the message until the
    next morning.
    Crystal was alive when McDonald’s coworker Desirae Hobbs briefly spoke
    with her on the phone at 12:45 a.m. on August 9. Before 2:30 a.m., Chico was
    outside his house telling the police that after Crystal “cut him,” he left for the
    hospital at 1:36 a.m. T.N. is a heavy sleeper. She testified she did not know her
    father was home until he woke her up around 1:45 a.m., saying they had to go to
    the hospital because Crystal had stabbed him in the arm. T.N. stated Chico took
    1
    At the top of the stairs, the bathroom was on one side and N.N.’s bedroom was on the
    other side.
    7
    them downstairs; they put on their shoes in the kitchen and left through the
    kitchen door, still wearing their pajamas. T.N. and N.N. did not see or hear their
    mother as they were leaving, and both testified the kitchen light was on. T.N.
    also testified: “Q. Did you notice anything unusual in the kitchen? A. That mom
    didn’t say anything, since her bedroom is, like, so close that she probably would
    have heard us and said something, but she didn’t.”
    Chico used a key to lock the deadbolt on the metal kitchen door after he
    rushed out with the children. Exhibit G, a photograph of the wooden front door,
    showed the front door’s deadbolt was activated when the officers forced it open
    to enter the house.
    During the car ride to the hospital, Chico told T.N. that he and Crystal had
    a big fight over a love letter from someone. T.N. believed her father tried to call
    Crystal on the way to the hospital but did not get an answer. Around 2:00 a.m.,
    they all entered the hospital emergency room, and Chico said he had been in a
    domestic altercation with his wife, expressing concern over her welfare. As a
    result, hospital clerk Michael Tweed called the Burlington police and requested a
    welfare check at the home.
    Dr. James Vandenberg and nurses Virginia Caulley and Brennan Garrison
    treated Chico, and he told them he was taking a blood thinner for a blood clot in
    his leg.2 He kept his kids close to him, appeared anxious, and made phone calls
    during his treatment. Vandenberg heard Chico telling someone about learning
    2
    Dr. Vandenberg testified Chico had a nine centimeter open laceration across his left
    arm, no more than one-quarter inch deep, and without much bleeding. Using seven
    staples, Vandenberg closed the wound.
    8
    his wife was having a relationship with another man, he was upset over finding a
    note, and his wife was upset and depressed. Caulley heard Chico talking to his
    mother, stating, “I can’t believe she did it.” Garrison heard him repeating, “I have
    proof.” Crystal’s father testified Chico called at 2:10 a.m. and briefly stated he
    was at the hospital, he and Crystal had fought, and Crystal had stabbed him.
    Ron immediately called Crystal but was unable to reach her. After treatment, a
    nurse took Chico and his children to a different room to wait for a police officer to
    talk about the domestic assault allegations. Without completing the discharge
    process and without telling anyone, Chico took his children and left the hospital.
    A. Investigation. Meanwhile, Burlington officers Dale Wyatt and Ronald
    Gerdner were sent to Crystal and Chico’s home to do a “welfare check on a
    person that may be suicidal.” After finding the doors locked and receiving no
    response to loud knocking, they looked in the windows and observed a woman
    on the floor. After their forced entry through the locked front door, the officers
    found Crystal on the bedroom floor with blood pooled around her head and a
    semi-automatic pistol in her left hand.3 Officer Wyatt commented, “this gal shot
    herself.”      The officers called Sergeant William Venvertloh for assistance and
    secured the house. Subsequent investigators found a green bath towel, later
    determined to have Crystal’s blood on it, on the countertop by the kitchen sink.
    The investigators also found a crumpled note, later determined to have Crystal’s
    blood on it, diagonally across the kitchen on the countertop by the stove.
    3
    At trial, Crystal’s father testified she is right-handed.
    9
    The officers called clerk Tweed, seeking Chico’s location and telling
    Tweed they had found a woman on the floor. Tweed then called Chico, warned
    him not to take the kids inside the house, and stated the police were there.
    Tweed testified he thought he heard sobbing.
    Police dispatcher Mary Watkinson also called and told Chico to go directly
    to the police station, not to his house. Chico agreed to do so. Gerdner left the
    house for the police station to interview Chico.          However, Chico lied to
    Watkinson, telling her he was driving a blue Chevrolet Cobalt when he was
    actually driving a beige SUV, which he drove directly home and parked in the
    garage. Chico got out of his car, shortly before 2:30 a.m. When he saw officer
    Wyatt, Chico got back in his car and backed out into the street, only stopping
    when Venvertloh approached. Venvertloh discovered the car’s driver was Chico
    and radioed Gerdner to return to the house. Venvertloh obtained Chico’s contact
    information and explained he was investigating Chico’s domestic allegations.
    Thereafter, Chico spoke with Gerdner for about fifteen minutes while sitting in his
    car with the children.4 Gerdner asked Chico to start from the beginning, and
    Chico repeated his story several times.
    Chico stated he had been working in Texas and was supposed to come
    home on the upcoming weekend, but instead, he had driven nineteen hours
    straight as a surprise. When he arrived between 11:30 p.m. and midnight, “the
    man she had been seeing while I been gone pulled off.” “I parked in the garage
    and . . . gave her some time to get herself together.” Chico went inside and
    4
    The video recording was played for the jury.
    10
    found Crystal “on the porch, smoking weed.” He surprised Crystal, said, “I’m
    home,” and they talked. He went “upstairs to take a shower. I come down,
    there’s a letter she wrote to him [the man she had been seeing]. So I picked the
    letter up and I started reading the letter.” Crystal came back in from doing her
    “little McDonald’s paperwork.” “I said, ‘What’s this letter here about?’ She tried
    to snag it from me . . . . She said, ‘You’re not here so don’t worry about it.’ So I
    took a picture of the letter” to show her father.
    Chico stated he told Crystal, “I’m going to show your dad since you say
    you want a divorce from me because I’m never here . . . but yet you’re sleeping
    around and say I can’t prove it and now I got documentation of it.” Chico showed
    the cell phone picture to Gerdner, who could see writing, explaining: “I said I was
    going to show [her father] this. I found this in our room.” She “snatched it from
    me.   Grabbed a knife and slashed my arm.           I grabbed my kids.”    Gerdner
    interrupted to ask about his injury, and Chico described the staples in his arm
    before continuing: “When I said I was going to show her dad, she took” the letter
    “from me,” saying “‘I’m going to kill myself,’ and I grabbed the kids and I ran to
    the hospital.” When he left, Crystal had the letter with her.
    Chico asked Gerdner, “Have you guys been in the house? . . . Obviously
    something’s going on [be]cause everyone won’t let us up in the house.” The
    officers asked him what kind of knife Crystal used. Chico replied:
    She grabbed a steak knife out of the kitchen. I had the letters and I
    was reading the letters and I was walking and she kept trying to
    snatch them and I said, “Let me read them. I will give them back to
    you if you tell me what all this is about.” I read the letters and I
    gave them to her. And as soon as she got them from me; she went
    11
    to cutting on me. I ran and grabbed the kids and I got right out of
    there.
    Chico then addressed the children in the car: “Didn’t I tell you, ‘Let’s go.’
    And you said, ‘Let me go in there and talk to mama.’ And I said, ‘she cut me.’
    And then we left the house, isn’t that what we did”? Gerdner asked whether
    Crystal was right-handed or left-handed, and Chico replied, “I think she’s right-
    handed. I think. I . . . I . . . I . . . don’t know for sure, I’m on a bunch of
    medication right now.      I can’t really tell you.”     He described his various
    medications.
    When asked “who” had left the house, Chico replied, “[Crystal] wouldn’t
    give me a name, and I happened to find it in the room.” When asked to describe
    the car, Chico thought it looked “like a Buick. I just parked in the garage and I let
    her do her thing and then I moseyed up in the house and surprised her” after
    giving her “time to act like nothing happened.” Crystal had a gun with her on the
    porch because she thought she heard somebody whistling. “I surprised her.”
    Chico asked if Crystal was okay. After a pause, the officers replied: “This
    is all about a stabbing.” Chico then volunteered more details: “I found a letter my
    wife wrote to this man that just left my house . . . . I confronted my wife with
    it . . . . She would not tell me who this letter was to.” She got upset when I talked
    about showing her dad.
    I know she’s messing around. She paints this picture that she
    would never do that and . . . I was going to show her dad and she
    wanted the letter from me. I did not want to give her the letters. I
    had the letters in my hand, reading the letters to her. I said I’ll give
    them to you when I’m done reading it. The moment I was done
    reading I gave the letters to her.
    12
    “She started tearing one up . . . she had the letter and the steak knife and cut
    me.” “We were in the bedroom; I was in the doorway when she f*** cut me.”
    Crystal “did not want me to have that—evidence she was doing somebody, it’s a
    smoking gun.”
    Chico added, Crystal came upstairs and started doing laundry while he
    showered.    He again addressed the kids: Remember you said, “Dad, you’re
    home,” and we hugged. “Then I went back downstairs and put some clothes on.
    I grabbed the letter and started reading it. She came back in and . . . brought the
    gun in . . . . I said . . . ‘Who is this letter to?’ So I read it to her. The more I read
    the madder she got.”       While reading, Chico walked to the kitchen.           Crystal
    followed and stood “with her arms crossed,” “looking at me.” Crystal “reached for
    something in the kitchen, and I didn’t pay no mind; I didn’t think she was grabbing
    something. And the moment we get in the bedroom she f*** starts cutting on
    me.” “It was evidence . . . a smoking gun. She was cheating on me.”
    Chico again spoke to his kids: “We left, what, about 1:36”?             Then he
    checked his mileage and estimated he arrived home around 11:30 p.m.                  He
    repeated, “She didn’t know I was coming. I was going to surprise her. And lo
    and behold I come here and there’s a man leaving my house. And I got the
    letters. I showed you the letters on my phone . . . . I know she’s got the letters in
    there with her.”    Chico stated he had friends in the police department and
    asserted: “This is a crime scene here. You guys need information from me to
    see if I did this or if she did this. Now, there’s evidence . . . I seen a man leave.
    She was devastated.         My wife was smoking drugs.”            “I started working
    13
    construction and traveling and . . . she starts seeing people . . . and I come home
    tonight and I see a man leaving, and I knew something was happening.”
    When the officers asked for a name, Chico replied, “I don’t know who he
    is. She wouldn’t tell me.” When the officers asked for more details about the car,
    he replied, maybe a Buick, maybe a ‘92 or ‘93, maybe a brown color, maybe a
    Crown Vic. He reiterated, “I caught her. I stayed calm and she cut me.” When
    the officers asked if Crystal previously had assaulted him, Chico claimed she had
    “choked him.” He then volunteered that two weeks ago, Crystal wanted to talk
    “so he came home. She took the kids to her parent’s and said she wanted to
    leave me . . . . I said, ‘Is there someone else?’ She said, ‘No, there’s no one
    else.’” He told her, “You’re lying. I know there is.” Crystal then tried to choke
    him.
    The officers explained: “In the State of Iowa, when somebody uses a knife
    to cut somebody then somebody has to go to jail.” Chico replied: “Okay. So are
    you taking me to jail?” The officers stated they were not because she “stabbed
    you is what you’re telling us.” Chico then asked if he could talk to Crystal. The
    officers replied, Crystal is “not coming out here to talk to you. If she stabbed you
    she is going to jail.”   He then repeated: “Is my wife okay?”          The officers
    responded, “Why would your wife not be okay?” Chico sighed and stated: “My
    wife cut me and my wife said she was going to hurt herself. Is my wife okay is
    what I’m asking you. I told the hospital the same thing.” The officers stated other
    officers were trying to get Crystal’s side of the story. The officers asked Chico if
    Crystal had said how she was going to hurt herself. He replied:
    14
    Well, she had a knife and she had a gun in there, and I don’t
    know . . . I mean, you tell me. It’s pretty obvious. Your husband
    catches you with another man leaving this house and catches this
    letter. It’s pretty obvious. It’s like the end of the world to me now, I
    was devastated.
    Chico stated Crystal kept a gun, a “.45,” by the bed.           He again tried to get
    information about Crystal:
    Come on you’ve been in our house . . . . We’ve been calling and
    calling, and she’s not answering the phone . . . . The hospital told
    us that the ambulance was here,[5] and I don’t see any ambulance
    here. So you guys are not telling me everything . . . . Is my wife
    okay or not?
    At one point Chico also told the officers, he thought “this is a ruse. You got all
    these cops here, it’s a crime scene.”
    The officers moved out of Chico’s hearing to have a discussion.            For
    several minutes they discussed whether to tell Chico that Crystal was dead.
    Chico broke up the discussion when he and one child got out of the car. The
    child waited by the car while Chico walked forward on the lawn, gesturing and
    talking to another officer. When the audio returned, the child said, “I can hold it.”
    Chico replied: “No, I want you to use the bathroom. This is our house and no
    one is gonna bar us from it.” When the officer told Chico not to go inside, he
    replied: “Are you going to arrest me or something? Did I do something?” The
    officer stated: “No, I’m not going to arrest you unless you want to go in that
    house.” The officers asked Chico to come to the police station for photographs
    of his injuries and to give a recorded statement. He agreed and drove to the
    police station with Gerdner following.
    5
    The officers were unaware of Chico’s conversation with Tweed.
    15
    Burlington Detective Eric Short was called in to interview Chico, and while
    Gerdner briefed Short, Chico and his children waited in the lobby. After about
    twenty minutes, Chico and the children unexpectedly left. When Gerdner was
    alerted, he and other officers followed and stopped the SUV. Chico stated he
    was going to the hospital to get treatment for the blood clot in his leg. The
    officers called an ambulance. Chico gave himself an injection, refused further
    treatment, and drove back to the police station with his kids, who slept in a
    nearby conference room while Short interviewed him.
    The first forty-five to sixty minutes of the interview were inadvertently not
    recorded. According to Short, during the unrecorded portion of the interview
    Chico provided additional details. Chico and Crystal talked about the drive; he
    “didn’t bring up who had just left the residence.” Throughout the “entire incident,”
    the gun was always with Crystal. After Chico found the note, he and Crystal
    were both sitting on the bed while he read it to himself. He got up and went to
    the kitchen, continuing to read the note, and Crystal followed. As Chico left the
    kitchen to go back to the bedroom, he heard clanking in the kitchen, and given
    the time to think about it, “there [were] alcohol bottles next to the knife block on
    the kitchen counter.” Crystal followed him back to the bedroom, and he asked
    her who this is. Crystal refused to give a name. He stated, “If you tell me, I will
    give you one of the notes back.” Chico gave one page to Crystal; who then cut
    him with a steak knife.
    Chico asked about Crystal, and Short told him, “Crystal is no longer with
    us.” According to Short, Chico had a “small emotional reaction” and put his head
    16
    in his hands, making crying sounds for about one minute. Short photographed
    Chico’s injury and collected various swabs. Short and Chico went out to Chico’s
    truck, and Chico gave him the receipts from his trip.         Chico gave Short the
    clothes he was wearing. When Short left to get bags for the clothing, he realized
    the recording was not on and activated it.
    The video showed Short returning to the interview room and putting the
    clothes in the bags.6 Chico initially stated Crystal was calm and cool. Short
    asked if the officers would find blood in his truck. Chico stated when he went
    upstairs he grabbed a shirt but he did not wear the shirt when he left for the
    hospital; his truck might or might not have some blood in it because he tried to
    protect the leather. He did not hold anything against the cut as he drove away.
    He grabbed a tissue at the hospital and held it against the cut. He dropped the
    tissue in the hospital’s hallway. He put on the shirt he had grabbed after he was
    “sewed up.” Chico repeated he heard the bottles clanking in the kitchen when
    Crystal was “messing with the knives.” At one point Chico stated: “I told you
    what happened word for word.”
    Chico stated the last time he saw Crystal was when he left to go upstairs
    and get the kids.7 Crystal was alive, and “we all left together.” When asked why
    he did not call for an ambulance after Crystal cut him, Chico explained: “I’m
    taking blood thinners. I have a blood clot. I drove a long way. I didn’t want to
    6
    The video was played for the jury.
    7
    Later in the interview, Chico changed his story. The last time he saw Crystal was when
    he left the kids in the kitchen and went in to grab his car keys from the entertainment
    stand.
    17
    wait around in case something happened to me and then there’d be two of us
    down. I’m not going to do that. I hurried up and went to the hospital.”
    Chico explained they did not scream and yell during their argument
    because they didn’t want to wake the kids.8 Short suggested someone in his
    position would be infuriated.      Chico responded he stayed calm because he
    practices Buddhism and meditates.         He also stayed calm because he had a
    smoking gun—the letter.       This “infuriated” her and “made her angry.”        Chico
    stated Crystal was “distraught” because he “had seen her lover leave.” “We had
    a great marriage.” She was also upset because his calmness “pissed her off.”
    At one point Chico stated: “If the evidence doesn’t point the way it should
    and it points to me, my children are going to be without their dad and my mom is
    going to have to raise my kids.”
    Short left the room to take the bags to his office. Although the officers at
    the house had asked Chico to give a recorded statement, Short had not told
    Chico he was video recording their conversation. The video showed, while Short
    was gone, Chico reached up near the ceiling, said, “Hi camera,” and then the
    sound stopped. The video continued, however, and showed Short reentering the
    room. After an unrecorded discussion, Short and Chico moved to a second room
    with both video and sound. Short stated the police were getting a search warrant
    for Chico’s cell phone and truck to see if there is evidence in the truck. Chico
    complained he was “getting railroaded” but eventually gave his phone to Short,
    8
    N.N.’s bedroom is directly above his parent’s first-floor bedroom while T.N.’s bedroom
    is toward the front of the house. T.N. had to walk through N.N.’s bedroom to get to her
    bedroom.
    18
    protesting he was being held “longer for no reason.” “I’m not leaving town. I
    know the procedures.” Iowa Department of Criminal Investigation (DCI) agent
    Matthew George joined the interview, explaining attorneys had required the
    officers get a search warrant for the truck.
    Chico had repeatedly asked to see his kids. Short and George took him to
    the room where the children were sleeping. Chico woke them up and asked if
    their mom was alive when they had left the house; they said she was.
    When Chico and the officers returned to the interview room, Chico asked,
    “Are you charging me?” The officers said they were not but they did not want to
    lose any evidence in the truck. Chico replied, “Sometimes the evidence is false.”
    “With the truck you are just wasting time.”
    Short asked Chico to describe the way his arm was bleeding after he was
    cut. Chico said the warm blood was running down his arm and dripping on his
    pants and foot. When Short stated they were surprised to find no blood at all in
    the truck, Chico responded he tried to take care of the truck, he had his elbow
    resting on his knee, and his bleeding arm was within his body. Also, the blood
    started “drying or coagulating” as he drove to the hospital. Chico repeated he
    had not held anything from home on the cut, although he had grabbed a black
    shirt from upstairs when he went up to wake the kids. Chico stated he did not put
    the black shirt on until after the doctors had treated him.
    Chico claimed Crystal was upset and very angry when she cut him. Also,
    she knew he was leaving.
    19
    Chico gave varied answers regarding why he took the time to lock the
    back door with the key in his rush to get treatment. First, he stated he locked the
    door because they “teach the kids to always lock the door.” Then he stated he
    locked the door because he did not want anyone coming in while he was gone.
    Short replied, “Crystal was there wasn’t she?” Chico responded he did not want
    Crystal coming out after him.        Chico did not arm the home security motion
    detector when he left.
    Chico told Short and George that he came downstairs from the shower
    wearing a green towel. After sitting on the bed and reading some of the note out
    loud to Crystal when she joined him in the bedroom, Chico walked naked to the
    kitchen, reading the note to himself. He left the towel somewhere in the bedroom
    but could not remember where. Crystal followed him to the kitchen and started
    doing the dishes. Crystal fed the fish. Chico stated he did not give Crystal any
    part of the note in the kitchen but gave her one page in the dining room as they
    went back to the bedroom. Crystal told him everything was right there in the
    notes and “that’s when the cutting started.”9 Crystal cut him as he walked in the
    “bedroom doorway.” He then put on his shorts.
    Short asked what Crystal was doing after she had cut him and while he
    was finding the shorts, “She still had the knife, didn’t she?” Chico replied Crystal
    was just sitting there, tearing up one of the letters and just looking at me
    9
    When asked if there was any reason they would find his fingerprints on the gun or
    knife, Chico stated Crystal had him cock the gun before he left for Texas and put the
    safety on so that all she would have to do is pull the trigger because she had a hard time
    “pulling that thing.” Chico sharpened all the knives for Crystal, so even if a knife was
    clean it might have his fingerprints on it.
    20
    “because she couldn’t believe I had found this and exposed her, it was a smoking
    gun.” She “wasn’t yelling, she was just so laid back, so laid back the whole time,
    that’s what got me.” Chico stated, “Crystal was tearing the evidence up because
    she did not want anyone to see it.” When he left, Crystal was not bleeding and
    she had all the notes.
    Short suggested a scenario, if there is a note in another part of the room,
    how does it get there? Chico replied, when Crystal was tearing up the note, he
    saw a name and wondered who it was. Chico grabbed a piece of the note as
    Crystal was tearing it up because he wanted to see the name. “That’s why I
    know a piece of the note could be in the kitchen, because I was reading that
    note.”    Chico also stated, while Crystal was tearing up the first page in the
    bedroom, he took the other pages and that piece to the kitchen to read. But at
    that point, Crystal had not cut him. After Crystal cut him and he went to the
    entertainment center to get his keys, Crystal was sitting on the edge of the bed,
    just looking at him with one note shredded on the floor and the other two in her
    hand. That was the last time Chico saw her, Crystal knew he was taking the
    kids, and Crystal did not say anything.
    In response to the final questions, Chico stated he is right-handed, Crystal
    shot guns frequently, and she had tried shooting with either hand. Crystal had
    complained to him about the “kick” of the .45 and wanted a smaller gun. Chico
    left the police station around noon on August 9, agreeing he would return to
    answer any additional questions. On the afternoon of August 9, the children
    were interviewed at a child protection center.       Chico drove there separately.
    21
    Detective Derek Schwandt overheard him telling the children before the interview
    to be honest; he did not know if he would be able to see them again, and he
    loved them.
    Officer Jeffrey Klein was stationed outside Crystal and Chico’s house
    during the evening of August 9, 2012. During a heavy rain between 8:00 and
    9:00 p.m., Klein observed a man wearing dress clothes, later identified as Chico,
    walking in the area of the garage.10 As the man proceeded to walk past the
    house, Klein asked what he was doing.            Chico replied he was walking for
    exercise and kept on walking. A few minutes later, Klein saw a beige SUV drive
    by and radioed for officers to stop Chico. When other officers pulled in behind
    the SUV, Chico pulled over and stopped. As the officers left their vehicles and
    approached, Chico drove off. The officers could not locate him. At trial, Chico
    testified about driving off after his walk in the pouring rain:
    I had just [gone] through a traumatic moment losing my wife and
    everything, and I didn’t know what these people were going to do to
    me. I didn’t go in the house. I wasn’t on the property. I was out
    walking, trying to have connections to my wife and kids, and they
    pulled up out of nowhere on me. I didn’t know if they were going to
    hurt me or what was going to happen, so I didn’t stop for them.
    Chico did not remain in Burlington but flew to the Seattle airport and then
    drove two and one-half hours to Lynsey Surridge’s home, arriving in the early
    morning of August 11.       He stayed there for several days.     During his direct
    examination at trial, Chico did not mention Surridge, instead testifying he went to
    Washington to see some friends who had served in the service with him and also
    10
    At trial, Chico testified he had parked his SUV a few blocks away at Grimes school
    before walking to his house.
    22
    to “have a ceremony done by some Indians; they’re friends of mine, the First
    Nation.” On cross-examination, Chico admitted Lynsey Surridge was the first
    person he went to see when he arrived in Washington. Chico also agreed he did
    not tell her about the incident until she saw the cut on his arm.
    Surridge testified Chico initially was quiet and guarded and did not want to
    talk about the wound on his arm. His demeanor was different from the outgoing
    demeanor he displayed during their phone calls. Later in the visit, Chico told her
    that he had been arguing with a friend who was going to commit suicide and
    during the argument, he had been stabbed.          Several weeks after Chico left
    Surridge’s residence, detective Short called Surridge, asking her to go to a local
    police station for an interview. At this interview, Surridge was surprised to learn
    Chico had been married, he had children, and his wife was dead. When the
    interview ended, an angry Surridge called Chico, who responded he was working
    to provide for his kids because their mother is “no longer with us.”
    After leaving Surridge’s residence, Chico moved around the country while
    working in the Dakotas, Michigan, and New York. Agent George spoke to Chico
    by phone on August 13 and requested another interview. During that call, Chico
    did not agree to another interview, stating he did not kill Crystal and his kids did
    not hear a gunshot. George described Chico as very upset, possibly suicidal,
    and paranoid. According to George, Chico feared he would be charged with a
    weapons violation and go to prison if he came in for an interview. George called
    Chico again on August 14 and August 27, but similarly, Chico would not agree to
    another interview.
    23
    B. Criminal Trial. Chico was charged with first-degree murder, and his
    two-and-one-half-week jury trial commenced in August 2013. The State called
    several witnesses who testified Crystal was a happy, outgoing person who had
    never discussed suicide or appeared suicidal.           Additionally, the State called
    witnesses who explained Crystal’s demeanor changed when she was with Chico.
    For example, co-worker Armstrong recalled approximately four times when
    “Crystal would come in on Sunday nights to get ready for inspection on Monday
    mornings, Chico would come in and watch her” for “the whole entire time she
    was there . . . approximately four to six hours.” According to Armstrong, “Chico
    would stare at her. He would fold his arms. He would make her uncomfortable.
    He would come up to the counter staring at her. He would just sit in there and
    watch her, and he didn’t look too happy while he was watching her.” Armstrong
    observed a change in Crystal’s demeanor when Chico was there, testifying if “it
    was just Crystal,” she “was relaxed” but when Chico “was there, she’d tighten up
    and be defensive.”11
    Coworker and friend Jennifer Pope described Crystal as “happy and
    bubbly” when she was away from Chico but subdued in his presence. Crystal
    told Pope she was “terrified” of Chico.
    Coworker and friend Margaret White testified Crystal was a sweet
    person—an “angel.”         White testified to Chico’s controlling behavior, i.e.,
    frequently calling and texting Crystal’s cell phone while Crystal was working. He
    11
    When Chico testified, he denied sitting in McDonald’s for long periods of time, stating
    he only made “quick trips in and out” in order to “see Crystal or take my kids up there.”
    One of Crystal’s co-workers testified she had not observed Chico staying for that length
    of time.
    24
    would then call McDonald’s if Crystal did not answer or text a response. During
    one such phone call between White and Chico, he accused White of lying about
    Crystal’s whereabouts.      Because this upset White, she programmed Chico’s
    number into the phone and would not answer if he called. White also testified to
    observing Chico becoming upset when Crystal, performing her job, interviewed
    male job applicants for McDonalds.      White described Crystal’s state of mind
    about Chico as “in fear.”
    T.N. testified her mom and dad did not get along when her dad was
    home—they would “be arguing all the time” and she and N.N. would go upstairs.
    While upstairs, they could sometimes hear them arguing “if they’re really loud,”
    but sometimes they would not hear “because it’s very weird up in that room.”
    N.N. testified similarly, his parents argued “sometimes,” and when they argued,
    he and T.N. would watch television in his room. Sometimes they could still hear
    them, depending on how loud they were arguing. In the past, both children had
    seen a gun near the bed in their parents’ bedroom.
    Thirty-nine-year-old Chico testified he did not touch the gun that evening
    and he did not shoot Crystal. He arrived home around 11:30 p.m. on August 8
    and saw a tan Buick parked on the street “on our side of the road.” He “thought it
    was the neighbor’s car, because sometimes the neighbors would park on our
    side of the street.” On cross-examination, Chico testified he did not think it was a
    neighbor’s car because he had recognized the car but because of where the car
    was parked.    We note that despite his alleged belief the car belonged to a
    neighbor, Chico did not immediately enter his house after his long drive:
    25
    I pulled my truck in the garage; our garage door light will stay
    on until it shuts off. It has, like, a delay. So I waited for the light to
    go off, because I wanted to see who this person was, and my dome
    light went off in my truck, and I was still in the garage, so once that
    went off, I stood in the garage by my truck, and I watched this man
    leave my house, is what I did.
    Once the man drove off, Chico exited the garage, unlocking the back door
    and entering the kitchen. He opened the doors leading upstairs from the kitchen
    to the children’s bedrooms and between the kitchen and the dining room, noting
    Crystal was not in their bedroom.       He put his phone and car keys on the
    entertainment stand as he walked “towards the front of the house where the
    porch is; my wife is there with a .45,” a gun they owned because Crystal “wanted
    to feel protected.” Crystal was standing and holding the gun because she had
    heard someone whistling. He and Crystal sat together on the porch with the gun
    resting between them and talked for ten to fifteen minutes.
    I didn’t say [anything] to her at that point about who that man
    was. I just went in there, and I let her know I’m home early . . . .
    We talked about my blood clot in my leg, how was the drive. We
    talked about—we were going to get a divorce, and she had called
    me when I was in [Texas] and told me about it . . . so we had tried
    to work it out, and I was going to give her money for her own place,
    a deposit and rent, and I was going to get her a vehicle to drive that
    was hers, because she wanted her own vehicle, and we had talked
    about that, and that’s what we were discussing, and she said she
    had paperwork that she wanted to show me, and I’m, like, okay.
    After “we had our conversation,” Chico went upstairs to take a shower. At
    some point Crystal came upstairs and talked to him while he was in the shower.
    Chico explained N.N. had heard him talking to Crystal in the bathroom, so after
    his shower, Chico wrapped himself in the green towel and went into N.N.’s
    bedroom to talk to him, stating, “I’m home early.” He and Crystal walked down
    26
    the stairs together, and Crystal went to the porch to “finish tidying up” while he
    went to the bedroom to finish drying off. Chico saw a note by the side of the
    hamper that “just seemed out of place” and started reading it. When Crystal
    came to the bedroom with the gun, she saw him reading the note, and they had
    an “intense conversation” for fifteen to twenty minutes. Chico admitted becoming
    upset after reading the note, he was “devastated” and “couldn’t believe it.”
    When I was reading the note to Crystal, Crystal stood toward the
    end of the bed . . . and I kept reading this to her, and she sat down
    on the bed next to me, and the gun would be next to her on the
    bed, because we were sitting looking at each other, and I couldn’t
    believe that she wrote this note to this man.
    Chico left the green towel on the bed and went to the kitchen, stating he
    “was naked this whole time.” Crystal left the gun in the bedroom, followed him,
    and tried to grab the three pages of notes from him: “I could tell [Crystal] was
    upset, and she stretched her fist out, and she made—she stretched her hand out
    and made a fist and put it to her side and walked to the kitchen with me, and she
    started washing the dishes.” He “continued to read the letter to Crystal” while
    she was doing the dishes and feeding the fish: “I read her words to her. Plus, I
    had said what my feelings were about it, and [Crystal] had said more of, I’m not
    going to tell you about this; this has nothing to do with you.” Chico estimated
    they were in the kitchen “for twelve to fifteen minutes.”
    When Crystal left the kitchen for the bedroom, he followed, stood in the
    bedroom doorway, and saw Crystal sitting on the bed. He offered to give Crystal
    one page of the note if she would identify the man in the note. Chico gave
    Crystal one page, which she tore up. He testified:
    27
    When she tore that letter up, I wanted to take pictures of the two I
    had, so I was going to show her father . . . . I was naked. I didn’t
    have any pockets for my phone, so I went to the entertainment
    stand and got my phone to take pictures of these letters, the last
    two that I had.
    Crystal remained in the bedroom when he left to retrieve his phone. Chico
    did not take the pictures in the room where he had retrieved his phone; he
    testified he instead went back to the bedroom and sat down next to Crystal, who
    was sitting on the end of the bed. Only then did he
    try to take pictures with my phone. Crystal is trying to grab the
    letters as I’m taking pictures . . . . Now, she does this for a while,
    tries to get these from me, and the pictures I had . . . you could see
    my thumb in them. I wanted to have exactly what it said . . . so I left
    . . . set those on [the dining room] table and took better pictures of
    what I had took in the room.
    While he was taking pictures in the dining room, Crystal remained in the bedroom
    and twice “said she’s going to hurt herself” if he showed her father the pages.
    Chico replied he was going to show her father. He put his phone back on the
    entertainment stand, and Crystal called him to come back in to the bedroom.
    Chico returned and handed the two pages to Crystal, who was standing and who
    threw the pages on the bed before cutting his left arm twice with the knife in her
    right hand. She was holding the gun in her other hand—“and every time she
    came across, that gun raised up every time she swung her hand.” After cutting
    him, Crystal sat down. He found clothes to wear while he told Crystal: “I’m going
    to tell your dad; I got pictures; I got proof of what you’re doing; . . . I’m going to
    get my kids; I’m going to take them and I’m leaving.”
    Chico testified it did not take long for him to get the kids, N.N. was already
    awake, and he physically shook T.N. awake. While the children put their shoes
    28
    on in the kitchen, Chico left the kitchen to grab his “phone, keys, and the remote
    for the garage door opener” from the entertainment center. Crystal did not say
    anything to Chico; she just looked at him while he gathered the items. On cross-
    examination, Chico testified:
    Q. [From the upstairs bedroom area,] you can exit those
    [stairs] through the kitchen and backdoor, and the bedroom area
    where Crystal was would not be visible? A. No, it would not be
    visible.
    ....
    Q. Did she make any effort to call out to the kids at all. A.
    No, she didn’t.
    Q. Did they make any effort to try to talk to her? A. No,
    they didn’t.
    ....
    Q. And I just want to confirm that the last time you saw
    Crystal was when you left the house to go to the hospital? A. Last
    time I [saw] Crystal, I grabbed my phone, the remote, and my keys,
    and I looked in the bedroom and [saw] her sitting there on the bed,
    is the last time I [saw] her. Make sure you got that.
    Q. And she was alive. A. . . . Absolutely, she was alive.
    Q. Was the knife in her hand? A. She had the gun and a
    knife. Remember, she had two hands.
    ....
    Q. A woman you had just described as telling you she was
    threatening to kill herself? A. Yes.
    Q. And from there, you [left] for the hospital? A. Yes.
    The prosecutor also asked Chico to provide an additional description of
    the man he saw leaving the house on August 8: “Q. Was he tall, thin, young,
    old?   A.   He could have been medium height, maybe 160, 170 pounds,
    somewhere in there maybe, maybe it was more. This was almost a year ago.”
    The jury found Chico guilty of first-degree murder; he now appeals.
    II. Standards of Review
    As to the claim the State presented insufficient evidence to convict him,
    we will uphold a jury verdict if substantial evidence supports it. State v. Cox, 781
    
    29 N.W.2d 757
    , 760 (Iowa 2010). “Evidence is substantial if it would convince a
    rational factfinder that the defendant is guilty beyond a reasonable doubt.” State
    v. Mitchell, 
    568 N.W.2d 493
    , 502 (Iowa 1997). We view the record evidence and
    “legitimate inferences and presumptions that may fairly and reasonably be
    deduced from [it]” in the light most favorable to the State. 
    Id. We recognize
    the
    jury is “free to reject certain evidence, and credit other evidence.”          State v.
    Nitcher, 
    720 N.W.2d 547
    , 556 (Iowa 2006).
    “[T]o the extent the defendant’s challenge to a trial court ruling on the
    admissibility of evidence implicates the interpretation of a . . . rule of evidence,
    our review is for errors at law.” 
    Cox, 781 N.W.2d at 760
    . We review a district
    court’s ruling regarding the admission of evidence for an abuse of discretion.
    State v. Richards, 
    809 N.W.2d 80
    , 89 (Iowa 2012). A court abuses its discretion
    when its ruling is based “on grounds or reasons clearly untenable or to an extent
    clearly unreasonable.” 
    Cox, 781 N.W.2d at 760
    .
    We review de novo Chico’s pro se challenges based on constitutional
    grounds. State v. Turner, 
    630 N.W.2d 601
    , 606 (Iowa 2001).
    III. Sufficient Evidence
    Chico contends the State offered insufficient evidence to allow a
    reasonable fact finder to conclude he committed murder in the first degree.12
    The State was required to prove Chico shot Crystal with a pistol, she died as a
    12
    Chico raises this claim, alternatively, in the context of his trial counsel making an
    insufficient motion for judgment of acquittal. We assume error was preserved and
    address the merits of his sufficiency challenge.
    30
    result of the wound, he acted with malice, and his act was willful, premeditated,
    and with the specific intent to kill.
    Our review of the record shows the State presented overwhelming
    evidence of guilt. The State’s witnesses described Chico’s controlling behavior
    during the marriage.        Those witnesses explained how Crystal’s demeanor
    changed when she was with Chico, and when she was not with him, Crystal was
    a happy, outgoing person.         Crystal’s family, an old friend, and several new
    friends and co-workers testified Crystal had not contemplated suicide. Crystal’s
    mother testified Crystal was happy about reestablishing their relationship.
    Chico’s behavior was evasive, suggesting guilt. He drove his beige SUV
    directly to his house after telling the dispatcher he would go directly to the police
    station in a blue Chevrolet.      After walking by his house “for exercise” in the
    pouring rain, Chico deliberately eluded the police when they stopped him.
    Chico’s statements reveal his guilty knowledge. At the house and before
    Chico was told Crystal had died, he insisted the house was “a crime scene.” He
    also enlisted his children in verifying his story and in attempting to gain entry to
    the alleged “crime scene.” Several times during the evening, Chico referenced
    “evidence,” i.e., “the evidence will show” and “sometimes evidence is false” and
    also used the phrase “smoking gun” on several occasions.            Finally, Chico’s
    statements at the house as to why he did not call an ambulance infer guilt—
    because he was taking blood thinners, if he had waited for an ambulance to
    come and treat his cut, then there would be “two down.” The only “two” Chico
    31
    could mean are Crystal, because he knew he had already shot her, and himself,
    due to his blood condition.
    The jury could have concluded Chico’s testimony was not credible in
    several regards. First, if Chico thought a neighbor’s car was parked outside his
    house, why would he believe someone was in his house and wait in the garage
    to see someone coming out of his house? His descriptions of his early trip home
    show his “surprise” was not intended as a happy surprise for Crystal. Rather,
    suspecting infidelity, he intended to “catch” Crystal by returning home early.
    Second, the jury could also have found not credible Chico’s claim he and
    Crystal calmly talked about his blood clot and his trip and he did not confront her
    until he “happened to find” the letters. If a jealous and controlling Chico had, in
    fact, seen Crystal’s lover leaving the house, Chico’s past behavior shows he
    would have immediately confronted Crystal. Thus, Chico’s description of “our
    conversation” suggests he concocted his story of a man leaving, resulting in
    Crystal and Chico talking calmly on the porch.
    Third, Chico’s claim he was merely exercising in the rain near his house
    could also have been found by the jury to be not credible, especially when
    combined with the facts he parked several blocks away and followed his
    “exercise” by tricking the police into stopping so he could drive off and elude
    them.
    Fourth, the jury could have discounted Chico’s testimony that Crystal, who
    had insisted on physical care during her meeting with the attorney, would allow a
    “devastated” Chico to take the children in their pajamas at “about 1:36” without
    32
    speaking to either him or the children. This conclusion is buttressed by the fact
    Chico told differing stories about their exit. At the house, he told the officers one
    of the kids had asked to say goodbye to mom; he did not allow it. At trial, he
    changed his story, testifying the kids had not made any effort to talk to Crystal.
    Fifth, the jury could have disregarded Chico’s testimony he, after fourteen
    years of marriage, did not know whether Crystal’s dominant hand was right or left
    because he was on medication and also his testimony she shot with either hand
    a gun she could not even cock herself.
    Sixth and finally as to credibility, the jury could have discredited Chico’s
    statement Crystal tried to choke him when the parties first discussed a divorce
    two weeks prior to her death. Ron testified a happy Crystal picked up the kids
    and told him Chico had agreed to a divorce. The attorney Crystal consulted
    formed the impression Chico had acquiesced in the divorce.            Chico’s claim
    Crystal had assaulted him in the previous two weeks during their discussion of a
    divorce was clearly an effort by Chico to lend support to his current claim Crystal
    assaulted him with a knife.
    In addition, a reasonable jury could recognize that Chico gave inconsistent
    statements. At the house, Chico first stated Crystal “snatched” or “took” the
    letters from him. While still at the house, he later told the officers he “gave” the
    letters to Crystal after reading them. At the house, Chico stated Crystal stood in
    the kitchen with her arms crossed, staring at him.         During the immediately
    following interview with Short, Chico claimed Crystal was doing the dishes and
    feeding the fish. His story was also fluid as to whether Crystal followed him or he
    33
    followed her, whether he put his clothes on after the shower and before
    finding/reading the letters or after he had been cut, whether Crystal always had
    the gun with her, and whether Crystal got madder and madder as he read the
    letters or was calm because she was smoking marijuana.
    Finally, although Chico presented scientific evidence to bolster his
    defense, the jury could have reasonably concluded (1) the State’s scientific
    evidence clearly established Crystal did not commit suicide and (2) the State’s
    scientific evidence clarified the weaknesses in Chico’s scientific evidence.
    A. The State’s Scientific Testimony. DCI criminalists Amy Johnson and
    Sabrina Seehafer spent nearly eleven hours at the scene taking photographs and
    collecting evidence for testing, including the pieces of paper strewn about the
    bedroom floor and the gun found in Crystal’s left hand (her non-dominant
    hand).13 When the blanket on the floor next to Crystal’s body was moved, a
    bullet fell out. It was later determined the bullet came from the gun Crystal held,
    and that gun contained an empty cartridge case that had failed to eject.
    Seehafer performed DNA analysis on numerous items taken from the
    scene. She discovered the three blood stains on the green towel in the kitchen
    were Crystal’s blood. The towel’s fourth blood stain showed Crystal as the major
    contributor and an undetermined person as a minor contributor.             Seehafer
    testified the blood stains on the note found in the kitchen matched Crystal’s
    13
    DCI fingerprint examiner Dennis Kern tested the gun and the kitchen note. He was
    unable to identify the fingerprints obtained.
    34
    blood.14 All the blood on Crystal’s clothing was her blood, and her blood was not
    found on Chico’s clothing.      Bloodstains, which matched Chico’s, included a
    bloodstain inside the master bedroom, one just outside the master bedroom, and
    one on a lighting switch plate going upstairs.
    Seehafer’s examination of the knife found next to Crystal’s body showed
    Crystal’s DNA was not on the knife.            Seehafer explained one would not
    necessarily find Crystal’s DNA on the knife even if Crystal had used it to cut
    Chico. Seehafer also found no blood on the knife blade but noted skin may be
    cut once without a knife picking up any blood. Seehafer discovered “touch” DNA
    on both the knife’s blade and handle matching Chico’s DNA.
    Seehafer also examined samples from the gun. A sample from the gun
    slide was inconclusive for blood but showed DNA matching Chico. The samples
    from the gun’s grip/trigger/hammer matched Crystal’s blood. Seehafer’s testing
    of the swabs from the chairs on the sun porch showed DNA matching that of
    Joshua Patrick.
    The Iowa DCI lab does not own a high-powered microscope and conducts
    a simple gunshot residue test for the presence of lead. Gunshot residue can be
    deposited by firing a gun, being near a fired gun, or from surface contact. DCI
    criminalist Victor Murillo tested for lead on both the green towel and Crystal’s
    shirt and found no lead particles. Murillo testified the lack of residue on Crystal’s
    14
    DCI criminalist and forensic document examiner Gary Licht reconstructed the torn
    note. On one page Crystal had written her name multiple times with three different last
    names—Newman, Johnson, and Patrick. In another portion, Crystal had written she
    should stop seeing him, presumably Patrick, and she planned to move to Iowa City with
    her kids.
    35
    shirt did not mean she did not fire the weapon. Murillo also explained he “would
    never rely on a gunshot residue kit to solve a case” because the results are
    subject to several interpretations. Lieutenant Dennis Kramer testified problems
    such as false positives and inconclusive results occur in testing for gunshot
    residue. Murillo determined the pistol found in Crystal’s left hand was in working
    order and had fired the shot that killed her. Murillo testified the gun’s spring
    tension could be difficult for some people to operate.         Murillo stated the gun
    would be “very loud” when fired.
    DCI criminalist Michael Halverson trained in both DNA analysis and
    bloodstain pattern analysis (BPA), reviewed crime scene photographs, police
    reports, the pathology report, and the DNA reports. Halverson’s analysis showed
    numerous transfer bloodstains on the back of Crystal’s left hand, the floor under
    her hand, her left sleeve cuff, the left hand slide of the pistol, her left index finger,
    the towel, and the kitchen note. The only source of Crystal’s bleeding was her
    head wound.      Halverson opined the transfer stain on Crystal’s hand “is not
    consistent with shooting herself” because her hand had to be in contact with
    liquid blood and liquid blood did not appear until after she was shot. Halverson
    doubted Crystal could have moved her hand into her blood because her injury
    would have left her incapable of making such a movement.                 Based on the
    transfer stains, Halverson opined Crystal’s hand was moved after she lost
    consciousness or died.        Halverson expressed the same opinion about the
    transfer stains on the floor below her hand and on her left sleeve.
    36
    As to the transfer stains on the slide of the gun and Crystal’s finger,
    Halverson opined these stains were not consistent with a self-inflicted wound
    because (1) the transfer required liquid blood and (2) a self-inflicted wound would
    cause backspatter and there was no backspatter. As to the transfer stains on the
    towel and note found in the kitchen, Halvorson opined those two items were
    moved from the bedroom to the kitchen after Crystal started bleeding.
    After analyzing the bloodstains on the side of the mattress, Halverson
    concluded the upper portions of the bloodstain came from projected blood while
    the lower portions of the bloodstain were a transfer stain. Thus, Crystal was not
    shot while sitting on the bed or standing next to it. Instead, the blood stains
    revealed it was likely Crystal was kneeling or sitting on the floor next to the bed
    when she was shot.
    B.   Autopsy.      Dr. Firchau conducted the autopsy,15 which showed
    marijuana in Crystal’s system.     During the autopsy, a piece of the note was
    discovered clenched in Crystal’s fist.         Dr. Firchau opined she died an
    instantaneous death from a single gunshot wound to her head. He described the
    path of the bullet—an entrance wound in the upper left-hand back portion of
    Crystal’s head travelling in a downward trajectory from left to right, back to front.
    Based on his observations and experience, Dr. Firchau testified he would not
    expect Crystal to have made “any significant postmortem voluntary movements.”
    15
    Medical examiner Seth Eberhardt testified his preliminary finding listing Crystal’s
    cause of death as suicide was based on the information he had been given and “from
    what I saw” at the house. He also explained it is not within his education/position to
    make a final determination on the cause of death; that is the purpose of the autopsy.
    37
    Dr. Firchau also opined Crystal did not suffer a contact wound, i.e., the
    gun was not directly contacting Crystal’s skin or within one inch of her skin.
    Further, the entrance wound did not have the characteristics of an intermediate-
    range wound, i.e., a wound from a few inches to “a few feet from the head.”
    Initially, Firchau classified the manner of death as undetermined, but upon
    reviewing Halverson’s report, Firchau changed the manner of death to
    homicide.16
    C. Chico’s Scientific Testimony. Stephanie Horner from RJ Lee Group
    used an electron microscope to conduct gunshot residue testing on swabs from
    Chico’s right hand and left forearm.         Horner’s testing showed no particles of
    gunshot residue.       Horner acknowledged the absence of residue does not
    “eliminate the possibility that the subject handled or discharged a firearm”
    because there are numerous ways to remove the particles, for example, by hand
    washing, by the passage of time, by wiping your hands on your clothing, or by
    running your hands through your hair.
    Julie Howenstine, an employee of Speckin Forensics who specializes in
    forensic biology and DNA analysis, also testified on Chico’s behalf.                  After
    reviewing Halverson’s report, Howenstine agreed “someone may have moved
    [Crystal’s] hand, and so they would have had to grab somewhere on the cuff
    16
    Based on Firchau’s testimony, the prosecutor logically argued: “Common sense will
    tell you a woman is not going to fire a .45 caliber gun from back to front with her off hand
    [or left hand] from [far away.] Those are things we know from Dr. Firchau’s testimony
    and from our common sense.”
    38
    area.”17 Believing Crystal’s body had been moved; Howenstine swabbed the
    unstained, non-blood areas of Crystal’s shirt cuff for touch DNA. Howenstine
    sent the swabs to Elmer Otteson of GenQuest DNA Analysis, and Otteson
    extracted DNA.18 Howenstine testified Otteson’s data on the cuff showed “a
    mixture of at least three individuals, and we were hoping still that we might find a
    sample where we had a single-source donor or a major-minor donor where we
    had better data to be able to compare to [the] reference samples” from Crystal,
    Chico, and Patrick. Searching for “better data,” Howenstine next “suggested
    another sample might be the towel,” because “we might find some [non-Crystal]
    cellular material . . . and perhaps generate a DNA profile in that way from
    someone who had handled the towel.” Howenstine asked Otteson to test the
    towel “after we realized that we had a mixture” on the cuff.
    When Otteson’s DNA data on the towel “also indicated the presence of at
    least three individuals,” Howenstine moved on to a third item for testing, the
    kitchen note “found removed from the body area.” Howenstine testified that,
    similar to the previous two samples, “the piece of the note found in the kitchen
    had a mixture of at least three people’s DNA present.”19 Although Otteson was
    not asked to interpret the profiles/data, he testified to the effects of complexity on
    DNA interpretation:
    17
    Howenstine specifically testified the State’s blood pattern analysis “showed several
    things, but the fact that the body had been moved is one of those conclusions.”
    18
    Otteson did not do any “preliminary testing to see what the DNA was . . . semen, or et
    cetera.”
    19
    Otteson’s final report stated the samples were “a mixture. It was consistent with three
    or more individuals,” meaning it would take at least three people to produce the results
    obtained.
    39
    Q. Based on the three mixed profiles you obtained . . . had
    you been asked . . . would you have been able to include or
    exclude individuals from the profiles . . . ? A. It would have been
    difficult. I doubt it. Well, you can exclude somebody, but including
    them would have been difficult.
    ....
    Q [C]ould you put that in laymen’s terms for the jury. A.
    Well, the profile that we got was very low, and it was right on the
    borderline of what you can believe to be accurate or not, so we got
    a lot of alleles, a lot of peaks, but they were right on the borderline
    of being able to believe them or not, so it wasn’t a good profile, and
    it was a—quite a few different alleles, so you couldn’t always trust
    what you got here.
    Q. And so what I understand . . . is . . . you don’t feel you
    would have been able to do an accurate interpretative analysis? A.
    Correct.
    Howenstine conducted a “DNA interpretation” by comparing Otteson’s
    data to known DNA samples from Chico, Crystal, and Patrick.                 Howenstine
    opined there was DNA from an unidentified fourth person in all three samples
    and also opined she could not include Chico, Crystal, or Patrick as possible
    donors to the DNA obtained from the left sleeve, towel, and note—“for a mixture
    like this, where there was no obvious major in any of these three samples, you
    would never say that you are matching anyone to it.”20 Howenstine concluded
    her testimony by discussing the exclusion of donors, stating:
    Q. [What] you have said here is that after your analysis, you
    [conclude] that Chico Newman, Crystal Newman, and Joshua
    Patrick could not be excluded as donors of the DNA? A. That’s
    correct . . . . I was not able to exclude them, but I won’t make the
    statement they are not excluded as possible donors either, because
    basically, the result would be called inconclusive. I can neither
    associate them to the sample nor exclude them from the sample.
    20
    Howenstine also testified: “[T]he only sample where I was fairly confident at least one
    of these three reference samples was present was in the swab of Crystal Newman’s left
    cuff, and it was consistent with coming from Crystal Newman.”
    40
    On cross-examination, Howenstine again testified, “with regard to all three
    of the samples [sleeve, towel, note], they were all, essentially, just inconclusive.”
    Further, in part due to the fact Howenstine was working with a “complex mixture,”
    she could not “give a statistical frequency, which is scientific certainty, to the fact
    Joshua Patrick was included” on the sleeve, on the towel or on the note.
    Howenstine testified she did not disagree with the DNA analysis and findings of
    the Iowa Department of Criminal Investigation. Finally, Howenstine had reviewed
    Halverson’s report, and she did not disagree with any of his conclusions or
    findings.
    D. State’s Rebuttal of Chico’s Scientific Testimony.              DNA analyst
    Seehafer reviewed Otteson and Howenstine’s testing and analysis. Seehafer
    noted she did not test the same regions because “I didn’t test the unstained
    portions.” Other than the fact Otteson used a testing kit designed for paternity
    cases and not one validated for use in forensic science laboratories, Seehafer
    opined Otteson’s “review of the data stating that all three samples were a mixture
    of three or more [persons] was scientifically sound.”
    As to Howenstine’s interpretation of Otteson’s data, Seehafer testified,
    under her lab procedures, she would not have been able to conduct an
    interpretation on these profile mixtures. Specifically, “all the mixtures indicated to
    me a four-person mixture. By our guidelines, we are not allowed to interpret a
    four-person mixture. Every time you have an additional contributor to the DNA
    profile, it increases the complexity of being able to sort out whose DNA is actually
    in that mixture.” Therefore, in the Iowa DCI laboratory, the mixtures “would be
    41
    called too complex and too weak for conclusive interpretation” and “those profiles
    would have been listed as uninterpretable.”          Seehafer also testified that
    Howenstine opining as to Joshua Patrick’s DNA without providing any statistics is
    meaningless information. We observe the fact Howenstine continued to test and
    search for items with a major/minor contributor supports Seehafer’s conclusions.
    E. Conclusion on the Sufficiency Challenge. Based on the totality of
    the evidence viewed in the light most favorable to the State, a rational jury could
    conclude Howenstine’s interpretive analysis of the non-blood, touch DNA was, in
    her own words, “inconclusive” and not entitled to any weight. The record shows
    a jealous, controlling Chico suspected Crystal was having an affair and knew she
    wanted a divorce. The parties fought frequently when Chico was home, and their
    marriage was so unhappy that they both sought the companionship of others.
    Crystal was not suicidal and was happy about the prospect of divorcing Chico
    and reasserting control over her life, including reestablishing a relationship with
    her mother.
    Even setting aside the credibility issues with Chico’s testimony discussed
    above, based on Halverson’s undisputed analysis of the physical evidence,
    overwhelming physical evidence shows Crystal did not commit suicide—
    decimating the primary trial defense. A jury could reasonably conclude Chico,
    having previously threatened “there would be consequences,” made good on his
    threat after he “found” the letter by (1) standing above Crystal as she knelt to pick
    42
    up pieces of the torn note21 and (2) using Crystal’s bedroom gun, shot her in the
    upper-left-back portion of her head, causing a downward, non-contact, non-
    intermediate entry wound.       A reasonable jury could further conclude Chico
    carelessly placed the gun in Crystal’s non-dominate left hand to stage a suicide
    scene, leaving damning touch DNA on both her hand and the floor, and cut
    himself, leaving his touch DNA on the knife, before he rushed to the hospital to
    plant the Crystal-suicide story.     The record shows that in his rush to leave,
    although Chico took time to use the key to lock the kitchen door, he mistakenly
    left the towel and note containing Crystal’s blood on the kitchen counter, items
    Crystal absolutely could not have moved to the kitchen herself after firing the
    gunshot that killed her instantly.
    In sum, Crystal’s death occurred two weeks after Crystal told Chico she
    wanted to leave him and immediately after Chico, a controlling spouse, arrived
    home early, found a note confirming his suspicions of her infidelity, and the
    parties fought. No one else had a motive to kill Crystal, who was “afraid” and
    “terrified” of her husband.      The jury was free to accept or reject Chico’s
    testimony, as well as the other witness’s testimony. Clearly, the jury did not find
    his claim Crystal committed suicide credible.
    Likewise, the jury did not believe Chico’s alternative claim—Joshua
    Patrick, after receiving an earlier text message telling him not to come, for some
    reason came to the house anyway and just happened to come after Chico left
    with the kids at 1:36 a.m.      For some unknown reason, Patrick killed Crystal
    21
    As discussed earlier, during the autopsy, a piece of the note was discovered clenched
    in Crystal’s fist.
    43
    during the approximately forty-five minutes after Chico left and before the officers
    arrived for the welfare check Chico himself initiated. When the officers arrived,
    both doors were locked with deadbolts, and there is no evidence Patrick had a
    key to lock the kitchen door after his alleged shooting of Crystal. Neither is there
    any evidence Patrick drove an old Buick. It is undisputed Chico used a key to
    lock the kitchen door when he left that evening. Thus, Chico’s claim, if Crystal
    did not commit suicide, Joshua Patrick shot her, is inherently unbelievable.
    Based on our review of the evidence in the record, we conclude overwhelming
    evidence supports the first-degree murder conviction.
    IV. Officer’s Testimony to Personal Experiences at Suicide Scenes
    During the State’s case-in-chief, the prosecutor asked four investigating
    officers, Gerdner, Venvertloh, Sandu, and Kramer, to testify to their anecdotal
    experiences at suicide scenes. Defense counsel’s relevancy objections were
    overruled.22     On appeal, Chico claims the anecdotal testimony “involved
    probabilities regarding the general population that were not relevant to [his]
    case.”
    Generally, evidence “is relevant when it has 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.” State v.
    Reynolds, 
    765 N.W.2d 283
    , 290 (Iowa 2009). We set out the testimony in the
    order it was presented to the jury.
    22
    Chico’s counsel objected to some but not all of this testimony on relevancy grounds.
    Our analysis and conclusion does not require us to differentiate between the objected-to
    testimony and the un-objected-to testimony.
    44
    Officer Gerdner testified he had observed “six or so” suicide scenes
    involving firearms and he could not “say for sure” how many of those six scenes
    involved women, but “I know it was one just a year ago prior to this.” Officer
    Venvertloh testified similarly, of his four or five calls to suicide scenes involving
    firearms, “there was only one involving a woman using a firearm.” Venvertloh
    recalled the address of the female suicide because it was “different from the
    others . . . . It was a female involved.” “Q. And that was unusual? A. Yes.
    Normally, it has been my experience that females—I don’t recall any other ones
    using a firearm.” DCI agent Sandu testified he had been called to ten suicide
    scenes involving firearms, only one was a woman, and she had used a handgun.
    During cross-examination, Sandu also testified that when he observed Crystal’s
    body, “nothing came to [his] attention” and he did not think anything was
    “unusual.”
    Officer Kramer was the final witness to testify, stating he and Sandu
    entered the residence, got a layout of the house itself, “and kind of looked at
    what evidence we felt would be necessary to notify the criminalists about.”
    Q. What sorts of things stood out to you that were things of
    interest? A. Things of interest to me, first off, was the body itself
    was a female, of course, and typically from the past in some
    training I’ve received is it is uncommon for, I guess, females to
    commit suicide by shooting themselves in the face or in the head
    area, because they have sometimes have thoughts of . . . .
    DEFENSE COUNSEL: I’m going to object. I believe he has
    answered the question. I don’t believe he is qualified to give this
    expert testimony as he wants to give either.
    THE COURT: It is a narrative answer so ask another
    question.
    Q. . . . [T]he way I understand your answer was that it was
    just uncommon to find a female who would commit suicide using a
    firearm? A. Yes.
    45
    Q. And I believe you said, specifically, to the head area? A.
    Yes.
    Kramer testified he had responded to fifty suicide scenes involving firearms and
    “I can’t remember any that I had responded to that would have involved a woman
    and a firearm.” “Q. So was it that experience that you were referring to that drew
    your attention to the fact that this was a female with a firearm? A. Yes.”
    Chico contends the witnesses’ anecdotal testimony implied that because it
    is “so rare” for a woman “to commit suicide by the use of a firearm, the likelihood
    that Crystal committed suicide was nil.” He claims this evidence led the jury to
    assume women do not commit suicide using firearms and allowed the jury to
    convict him “on probabilities rather than the evidence presented against him as
    an individual.”23
    The State responds such evidence “was relevant, proper lay opinion
    testimony, and in any regard, not prejudicial.”         The State claims the officers
    limited their testimony “to each officer’s work experience, and none gave a
    personal opinion on the appearance” of the “shooting scene or an opinion on
    Chico’s guilt.”     Finally, the State claims the challenged testimony was harmless
    in light of the strong evidence of guilt. In support, the State cites an unpublished
    California case in which the husband presented a suicide defense. See People
    v. Branch, No. A113421, 
    2007 WL 4171625
    (Cal. Ct. App. Nov. 27, 2007).24 One
    23
    Chico also claims the anecdotal evidence was “not consistent with reality” and
    compares Gerdner, one woman out of six (16%), and Venvertloh, one woman out of five
    (20%), with two studies detailing suicide statistics. Based on our conclusion to Chico’s
    relevancy challenge, we need not discuss the accuracy of the testimony.
    24
    The State also cites a postconviction (PCR) case from Delaware in which the husband
    sought relief from his first-degree murder conviction for killing his wife by a gunshot to
    46
    investigating officer testified, upon viewing the scene “he became somewhat
    suspicious because out of the many suicides involving females that he had
    worked, there had always been a suicide note and only two of the women had
    used a gun to kill themselves.”        
    Id. at *1.
      The appellate court allowed the
    testimony:
    [W]e cannot say [the officer’s] testimony regarding his experience
    with female suicides lacked a rational basis, or that it failed to clarify
    his testimony. The testimony was helpful to the jury insofar as it
    was relevant to show why the officers might have been disposed to
    fully investigate [the wife’s] death, rather than simply closing the
    case as a suicide. Moreover, it is common knowledge that police
    officers are trained to assess potential crime scenes and that they
    often rely on their past experience in deciding whether further
    investigation is warranted.
    
    Id. at *3.
    We do not find the State’s case law persuasive; only one officer testified,
    and he clearly tied his testimony to his ongoing investigative analysis. See 
    id. at *1.
    Here, the State presented anecdotal testimony from four different officers,
    asked the jury to rely on the anecdotal evidence during closing arguments, 25 and
    only Kramer’s testimony could arguably be tied to his investigative analysis.
    Accordingly, we conclude the anecdotal evidence herein was not relevant. We
    the head. See State v. Ploof, No. 111003002, 
    2012 WL 1413483
    (Del. Super. Ct. Jan.
    30, 2012). At the criminal trial, the state medical examiner testified “cases of female
    suicide by firearm are very rare and . . . in her opinion, [the wife] was the victim of a
    homicide.” 
    Id. at *2.
    Because this case does not involve a challenge to the medical
    examiner’s testimony, this case is not helpful to our resolution of Chico’s appeal.
    25
    The prosecutor relied on the anecdotal evidence during closing:
    And another question I think you should all ask yourself, this is a gun that
    Mr. Newman . . . talked about [with detective Short,] she didn’t like the
    kick of a .45. We heard several law enforcement officers who have been
    to suicide scenes involving firearms testify, A, it’s very rare to have a
    woman shoot herself, and even more rare for the gun to still be in her
    hand.
    47
    also conclude the evidence was prejudicial to defense counsel’s efforts to
    establish the primary defense of Crystal committing suicide.
    Although the anecdotal stories were erroneously admitted into evidence,
    the circumstances of this case nevertheless reveal the admission to be harmless
    error. See Iowa R. Evid. 5.103(a) (“Error may not be predicated upon a ruling
    [admitting] evidence unless a substantial right of the defendant is affected.”).
    Because the evidentiary error was not of constitutional dimensions, we reverse
    only when it appears Chico’s rights “have been injuriously affected by the error or
    that he has suffered a miscarriage of justice.” See State v. Henderson, 
    696 N.W.2d 5
    , 12 (Iowa 2005). The State presented overwhelming proof of guilt, as
    detailed above. No purpose would be served by repeating our analysis. In short,
    we are confident the State’s case on the first-degree murder charge was so
    overwhelming that the State would have prevailed in the absence of the officers’
    anecdotal evidence.
    V. Pro Se Claims
    We find no merit to Chico’s claim defense counsel was ineffective in failing
    to object to a “general intent” jury instruction. Jury instructions are to be read
    together, and the marshalling instruction clearly required the State to prove Chico
    acted with the specific intent to kill Crystal. See State v. Pierce, 
    287 N.W.2d 570
    ,
    575 (Iowa 1980); see also State v. Keeton, 
    710 N.W.2d 531
    , 534 (Iowa 2006).
    Furthermore, Chico’s defense was that he did not shoot Crystal, claiming either
    Crystal committed suicide or Joshua Patrick shot her. Chico did not defend on
    48
    the basis he lacked the specific intent to kill Crystal.      Accordingly, defense
    counsel was not ineffective on either duty or prejudice grounds.
    Second, Chico claims trial counsel was ineffective by failing to object to
    some elements and wording in the lesser-included-offense instructions. Because
    the jury found him guilty of the greater offense, he has failed to establish either a
    breach of duty or resulting prejudice based on the lesser-offense instructions.
    Finally, Chico claims trial counsel was ineffective in failing to move to
    suppress his police-interview statements at the police station based on an
    alleged lack of Miranda warnings during the unrecorded portion of his interview.
    Finding the present record inadequate to resolve this claim, we preserve it for
    possible postconviction-relief proceedings.
    We have considered all the claims presented; any claim not specifically
    addressed is deemed to be without merit.
    AFFIRMED.