State v. Kitzmiller , 2021 UT App 87 ( 2021 )


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    2021 UT App 87
    THE UTAH COURT OF APPEALS
    STATE OF UTAH,
    Appellee,
    v.
    DYLAN JAMES KITZMILLER,
    Appellant.
    Opinion
    No. 20190716-CA
    Filed August 12, 2021
    Third District Court, West Jordan Department
    The Honorable William K. Kendall
    No. 171403744
    Wendy M. Brown, Attorney for Appellant
    Sean D. Reyes and William M. Hains, Attorneys
    for Appellee
    SENIOR JUDGE KATE APPLEBY authored this Opinion, in which
    JUDGES MICHELE M. CHRISTIANSEN FORSTER and DIANA HAGEN
    concurred. 1
    APPLEBY, Senior Judge:
    ¶1     Dylan James Kitzmiller was convicted on two counts of
    child abuse in connection with the death of his girlfriend’s
    newborn baby. On appeal, he argues (1) his trial counsel was
    ineffective for failing to request a separate unanimity jury
    instruction and that the district court plainly erred by not
    1. Senior Judge Kate Appleby sat by special assignment as
    authorized by law. See generally Utah R. Jud. Admin. 11-201(7).
    State v. Kitzmiller
    providing one sua sponte,2 (2) the district court erred by refusing
    to give a jury instruction pertaining to an in-custody informant
    and trial counsel was ineffective for failing to make additional
    arguments on the matter, and (3) there was insufficient evidence
    to support the jury’s verdict. We affirm.
    BACKGROUND
    ¶2    Kitzmiller and his girlfriend (Girlfriend) were living in his
    mother’s basement when Girlfriend’s newborn baby (Baby) died.
    Baby was born with no known health problems on September 4,
    2017. One evening approximately two weeks later, emergency
    responders were called to the household because Baby had
    stopped breathing.
    ¶3     Responding medical professionals pronounced Baby dead
    at the scene. The fire battalion chief noticed that Baby was
    “emaciated” and “had a lot of injuries.” He requested detectives
    be sent to the scene “because it looked like non-accidental
    trauma.” The first police officer to arrive observed that
    Kitzmiller was “crying” and “upset,” but nevertheless thought
    Kitzmiller’s demeanor was unusual: “What struck me was he
    wouldn’t look any officer in the eyes as they would walk past.
    He kind of ducked his head, covered his eyes, and wouldn’t look
    me in the eye. I was standing right next to him.” Another officer
    described Kitzmiller as appearing “very nervous, almost a little
    bit panicky, [and] unsure of what he was going to do.” And a
    third officer described Kitzmiller as being angry and defensive
    when questioned, whereas Girlfriend exhibited more of a
    “concerned” demeanor throughout.
    2. “Sua sponte” is a Latin term meaning “on its own motion” or
    “[w]ithout prompting or suggestion.” Sua Sponte, Black’s Law
    Dictionary (11th ed. 2019).
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    State v. Kitzmiller
    ¶4     A crime scene investigator discovered diapers with “a lot
    of blood on them” in the downstairs bathroom and clothes with
    “quite a bit of blood” on them in the hamper, including baby
    clothes and what the investigator assumed were men’s shirts.
    ¶5     In performing an autopsy on Baby’s body, the medical
    examiner noted many injuries, including abrasions on both ears,
    multiple abrasions on his nose, redness and ulceration on his
    lower lip and chin, possible bruising on the right side of his
    forehead, scrapes on the backs of his fingers on each hand, a
    lesion on his left palm, a “fairly large” bruise on his left arm,
    bruises on each side of his torso and his chest, a recently broken
    right arm, and torn nerves and bleeding in his brain caused by a
    traumatic event—indeed, the autopsy suggested that there were
    at least two traumatic events because some bleeding in Baby’s
    brain was older than other bleeding. The autopsy also showed
    that Baby had recently suffered a rib fracture, which was caused
    by “[e]xtremely forceful” “shaking or shaking with an impact.”
    ¶6      After the medical examiner classified Baby’s death as a
    homicide caused by “blunt force injuries,” Kitzmiller and
    Girlfriend were each charged with one count of murder and
    three counts of child abuse. Girlfriend subsequently entered into
    a plea agreement with the State, pleading guilty to two counts of
    child abuse (for using drugs while nursing Baby and permitting
    Kitzmiller to abuse him) in exchange for testifying against
    Kitzmiller.
    ¶7    At Kitzmiller’s trial, Girlfriend testified that in the first
    days after Baby’s birth, Kitzmiller looked after Baby but handled
    him “[v]ery carelessly.” She said Kitzmiller was “jealous” of the
    time she spent tending to Baby and was frequently angered by
    Baby’s crying. Among the specific things she observed were
    Kitzmiller not supporting Baby’s head; swaddling Baby face
    down on the carpet; peeling off irritated skin on Baby’s nose, lip,
    and mouth; tossing Baby back-and-forth between his hands;
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    tossing Baby into the air; and tossing Baby in frustration onto a
    mattress and box spring. She also described a time when
    Kitzmiller angrily shook Baby: “[Kitzmiller] was holding [Baby]
    up at chest level by his shoulders and [Baby] was crying, and he
    was shaking him and calling him stupid and saying he didn’t
    understand why [Baby] wouldn’t stop crying.” Girlfriend also
    recalled asking Kitzmiller about a bruise on Baby’s cheek a few
    days before he died, and Kitzmiller responding that Baby
    accidently fell off the bed. And she testified that when she
    wanted to take Baby to the doctor to have some injuries checked,
    Kitzmiller responded, “If we take him to the doctor they’re
    going to take him away from you.”
    ¶8      Girlfriend testified that on the day Baby died, she left him
    with Kitzmiller while she went upstairs to visit with guests. A
    couple of hours later she returned to get Baby and found him
    “undressed and freezing” and “really irritated.” Girlfriend
    dressed Baby and took him upstairs to show him to the guests; at
    this point, Kitzmiller left the house. A little later, Girlfriend gave
    Baby some gas drops, fed him, and lay down with him for a nap.
    When Baby awoke, he was more irritated, and Girlfriend and
    Kitzmiller’s mother spent a couple of hours trying to calm him.
    Sometime after Kitzmiller returned that evening, Girlfriend was
    finally able to soothe Baby to sleep.
    ¶9     Girlfriend testified that after she put Baby to bed, she
    went upstairs to call a friend and told the friend that she feared
    for herself and Baby because of Kitzmiller’s “outbursts of anger
    and his abuse of [her] and of [Baby].” Girlfriend then elaborated
    that part of her concern stemmed from bite marks on Baby’s
    hands caused by Kitzmiller.
    ¶10 After the phone call, Girlfriend returned downstairs to
    find Baby awake and undressed, with Kitzmiller making ”some
    kind of bicycling motion” with Baby’s legs. Girlfriend described
    Kitzmiller’s demeanor: “Just strange. Like he wasn’t happy. He
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    wasn’t angry. Just like he wasn’t all there, really.” Girlfriend
    testified that she calmed Baby and put him back to sleep, but
    after lying down and listening to Baby breathe for forty-five
    minutes, she heard him gasp. She testified that she picked up
    Baby, realized he was not breathing, and called 911.
    ¶11 Girlfriend also testified about her first phone call with
    Kitzmiller after Baby’s death, which occurred when Kitzmiller
    had been missing for “most of that day.” She said that when she
    asked where he had been, Kitzmiller responded that he “had
    tried to kill himself because [Baby] was not alive anymore and
    he thought it was his fault.”
    ¶12 The medical examiner who performed the autopsy also
    testified at trial, cataloguing Baby’s injuries and explaining the
    classification of his death as a homicide. And a child abuse
    pediatrician who attended the autopsy testified about the kinds
    of actions that would cause the injuries Baby sustained. She
    offered her conclusion that “the massive amount of blood
    around his brain,” “damage to the brain itself,” and “significant
    swelling of the brain” caused Baby’s death; she also concluded
    that it was not possible for an accident to have caused such
    injuries.
    ¶13 The jury returned a not-guilty verdict on the murder
    count (Count I) and one of the child abuse counts (Count III), but
    found Kitzmiller guilty on the other two child abuse counts
    (Counts II and IV). Kitzmiller appeals.
    ISSUES AND STANDARDS OF REVIEW
    ¶14 Kitzmiller argues, for the first time on appeal, that his
    constitutional rights were violated because the jury was not
    given a separate instruction requiring it to reach a unanimous
    verdict. “A failure to preserve an issue in the trial court generally
    precludes a party from arguing that issue in an appellate court,
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    State v. Kitzmiller
    absent a valid exception.” State v. Johnson, 
    2017 UT 76
    , ¶ 18, 
    416 P.3d 443
    . Kitzmiller argues that two exceptions apply in this
    case, asserting that the district court plainly erred by failing to
    give a separate unanimity instruction and that trial counsel
    rendered ineffective assistance by failing to request such an
    instruction. See generally 
    id. ¶ 19
     (recognizing the exceptions to
    the preservation rule of plain error and ineffective assistance of
    counsel). “Plain error is a question of law reviewed for
    correctness.” State v. Smit, 
    2004 UT App 222
    , ¶ 7, 
    95 P.3d 1203
    .
    Similarly, “when a claim of ineffective assistance of counsel is
    raised for the first time on appeal, there is no lower court ruling
    to review and we must decide whether the defendant was
    deprived of the effective assistance of counsel as a matter of
    law.” State v. Beckering, 
    2015 UT App 53
    , ¶ 18, 
    346 P.3d 672
    (quotation simplified).
    ¶15 Kitzmiller next argues that the district court erred in
    denying his request for a jury instruction addressing testimony
    from an in-custody informant. “The refusal to give a jury
    instruction is reviewed for abuse of discretion, although in some
    circumstances that discretion will be narrowly constrained.”
    Miller v. Utah Dep't of Transp., 
    2012 UT 54
    , ¶ 13, 
    285 P.3d 1208
    (quotation simplified). Further, “when reviewing jury
    instructions, we look at the jury instructions in their entirety and
    will affirm when the instructions taken as a whole fairly instruct
    the jury on the law applicable to the case.” State v. Lambdin, 
    2017 UT 46
    , ¶ 41, 
    424 P.3d 117
     (quotation simplified).
    ¶16 As an alternative argument on the issue of an in-custody
    informant instruction, Kitzmiller also argues that his counsel
    rendered ineffective assistance by failing to provide “additional
    legal argument or a more tailored proposed instruction for the
    trial court to consider.” Again, an ineffective assistance of
    counsel claim first raised on appeal presents a question of law.
    Beckering, 
    2015 UT App 53
    , ¶ 18.
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    State v. Kitzmiller
    ¶17 Kitzmiller finally argues there was insufficient evidence
    presented to support his two child abuse convictions. When
    addressing such a challenge, “our scrutiny of the evidence is
    limited: We review the evidence and all inferences which may
    reasonably be drawn from it in the light most favorable to the
    verdict of the jury.” State v. Hamilton, 
    827 P.2d 232
    , 236 (Utah
    1992) (quotation simplified). “Moreover, we assume that the jury
    believed the evidence supporting the verdict. A jury conviction
    will be reversed for insufficient evidence only if the evidence
    presented at trial is so insufficient that reasonable minds could
    not have reached the verdict. We will not lightly overturn a jury
    verdict.” State v. Widdison, 
    2001 UT 60
    , ¶ 74, 
    28 P.3d 1278
    (quotation simplified).
    ANALYSIS
    I. Separate Unanimity Jury Instruction
    ¶18 Kitzmiller argues he was denied his constitutional right to
    a unanimous jury verdict because the district court did not
    provide a separate unanimity instruction, which would have
    made clear that the jury must unanimously determine which acts
    Kitzmiller committed to support the child abuse convictions. He
    concedes this argument was not preserved but argues that we
    may consider it under two exceptions to the preservation
    requirement—plain error and ineffective assistance of counsel.
    ¶19 “To demonstrate plain error, a defendant must establish
    that (i) an error exists; (ii) the error should have been obvious to
    the trial court; and (iii) the error is harmful, i.e., absent the error,
    there is a reasonable likelihood of a more favorable outcome for
    the appellant, or phrased differently, our confidence in the
    verdict is undermined.” State v. Holgate, 
    2000 UT 74
    , ¶ 13, 
    10 P.3d 346
     (quotation simplified). “To succeed on an ineffective
    assistance of counsel claim, [a defendant] must show both that
    counsel’s performance was deficient and that the deficient
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    State v. Kitzmiller
    performance prejudiced the defense.” State v. Beckering, 
    2015 UT App 53
    , ¶ 21, 
    346 P.3d 672
     (quotation simplified).
    ¶20 Assuming, without deciding, that each preservation
    exception otherwise applies in this case, we nevertheless
    determine that Kitzmiller has not satisfied the prejudice prong
    required to show either plain error or ineffective assistance of
    counsel. That is, he has not shown there is a reasonable
    likelihood that if a separate unanimity instruction had been
    requested and given, the trial result would have been different.
    See Archuleta v. Galetka, 
    2011 UT 73
    , ¶ 40, 
    267 P.3d 232
     (“To
    establish prejudice [for an ineffective assistance of counsel
    claim], a defendant must present sufficient evidence to support a
    reasonable probability that, but for counsel’s unprofessional
    errors, the result of the proceeding would have been different.”
    (quotation simplified)); State v. Dean, 
    2004 UT 63
    , ¶ 22, 
    95 P.3d 276
     (“Under the plain error doctrine, a defendant must not only
    demonstrate that the error was obvious, but also that it was
    harmful or of such a magnitude that there is a reasonable
    likelihood of a more favorable outcome for the defendant. This
    harmfulness test is equivalent to the prejudice test applied in
    assessing claims of ineffective assistance of counsel.” (quotation
    simplified)).
    ¶21 At the outset of our analysis, we note that in the final jury
    instructions, given just before deliberations, the district court
    gave a general unanimity instruction, explaining, “Because this
    is a criminal case, every single juror must agree with the verdict
    before the defendant can be found guilty or not guilty.” The
    court also instructed the jury that it must consider each charge
    separately and further clarified, “Your verdict on one charge
    does not determine your verdict on any other charge.”
    ¶22 Nevertheless, Kitzmiller argues that the absence of a
    separate unanimity instruction was harmful because the jury
    was unclear as to which alleged injuries related to which of the
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    State v. Kitzmiller
    three child abuse charges. We disagree that the jury was
    confused on this matter. Counts II, III, and IV were all child
    abuse charges based on the same statutory section, but the
    Information—which was once read verbatim to the jury and then
    later referred to in the preliminary jury instructions—specified
    which injuries Kitzmiller allegedly caused that corresponded to
    each count: “a comminuted spiral fracture of [Baby’s] right
    humerus” for Count II;3 “a fracture of [Baby’s] first left rib” for
    Count III; and “multiple injuries, including bruises/abrasions to
    [Baby’s] hands, ear, chest, flanks, upper arms, and chin” for
    Count IV. And during closing argument, the prosecutor also
    clarified which injuries supported which counts of child abuse:
    There’s four counts in this case. There’s the murder
    count and then there’s three child abuse counts.
    The three child abuse counts deal with the fact of
    the other injuries that [Baby] had.
    When [Baby] was examined, it was found
    that his arm was broken. . . . That’s one of the child
    abuse counts.
    The other child abuse count[] is the first rib
    fracture . . . . That happens when the head goes
    back and forth.
    The third count happens to do with all the
    other injuries. The blunt force trauma that [Baby]
    had, that he had all over his entire body—on his
    3. According to expert testimony presented at trial, a
    comminuted fracture is one in which the bone is broken
    into “more than two pieces.” See also Comminuted, Merriam-
    Webster     Medical   Dictionary,     https://www.merriam-
    webster.com/medical/ comminuted [https://perma.cc/X7WB-
    WEAK].
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    State v. Kitzmiller
    mouth, on his nose, the bruising on his arm, his
    hands, his little hands, both hands, his chest, his
    hip, his trunk area. That’s what the third count
    refers to.
    Thus, where the prosecutor mentioned the three separate child
    abuse counts, tied each to specific injuries, and explained them
    in order, it is not reasonably likely the jury misunderstood which
    injuries related to which count of child abuse.
    ¶23 Given that each count was explicitly tied to specific
    injuries in the Information read to the jury and in the State’s
    closing argument, it is unlikely the jury was confused by the
    multiple child abuse charges and we see no reasonable
    likelihood the jury would have returned a more favorable
    verdict had the separate unanimity jury instruction been
    requested and given.
    ¶24 Kitzmiller argues that even if the jury was able to discern
    which injuries related to each count of child abuse, the alleged
    error was harmful because the jury instructions did not clarify to
    the jury that it must agree as to which of the two or more actions
    listed in the Information supported the final count of child abuse
    (Count IV). That count alleged Kitzmiller had “caused multiple
    injuries, including bruises/abrasions to [Baby’s] hands, ear, chest,
    flanks, upper arms, and chin.”
    ¶25 But we are not convinced the jury was confused here,
    either. The definition of “serious physical injury” given in the
    jury instructions included “any combination of two or more
    physical injuries inflicted by the same person, either at the same
    time or on different occasions.” See also Utah Code Ann. § 76-5-
    109(1)(f)(ii)(E) (LexisNexis 2017). Likewise, the prosecutor
    explained that the last count of child abuse “lumped together”
    many injuries because the definition of serious physical injury
    relied on for Count IV required there to be “two or more
    injuries.” Thus, because the jury was aware that Count IV
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    State v. Kitzmiller
    required two injuries and it was generally instructed that “every
    single juror must agree with the verdict,” we think it unlikely
    that the jury thought it did not have to agree on which “two or
    more injuries” supported the charge.
    ¶26 Furthermore, we recognize the importance of the strength
    of the State’s case on Count IV. The child abuse pediatrician
    acknowledged that the actions Girlfriend reported, or others like
    them, could have caused several of the injuries listed in Count
    IV. For example, the pediatrician testified that shaking could
    have caused some of the bruising, that a caregiver’s bites could
    have caused the abrasions on Baby’s hands, and that placing
    Baby face down on the carpet could have caused his chin injury.
    The evidence in support of Count IV was strong, which also
    makes it less likely that any error in instruction on this count
    was prejudicial to Kitzmiller. See State v. Alires, 
    2019 UT App 206
    ,
    ¶ 27, 
    455 P.3d 636
     (“A verdict or conclusion only weakly
    supported by the record is more likely to have been affected by
    errors than one with overwhelming record support.” (quotation
    simplified)).
    ¶27 In sum, because we are not convinced the jury was
    confused regarding which injuries related to which counts,
    because it seems unlikely there was confusion regarding the
    unanimity required for each count, and because of the strength
    of the evidence supporting Count IV, we do not see a reasonable
    likelihood that the result would have been more favorable to
    Kitzmiller if the separate unanimity instruction had been
    requested and given. Thus, Kitzmiller has failed to show
    prejudice, and these claims of plain error and ineffective
    assistance of counsel therefore necessarily fail.
    II. In-Custody Informant Jury Instruction
    ¶28 Kitzmiller argues that the district court erred by refusing
    to give the in-custody informant jury instruction he proposed
    regarding Girlfriend’s trial testimony. Trial counsel argued that
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    State v. Kitzmiller
    Girlfriend was an in-custody informant and, because of this,
    proposed instructing the jury to examine and weigh the
    testimony of such an informant “with greater care than the
    testimony of an ordinary witness.” But the court determined that
    the in-custody instruction did not apply to Girlfriend because
    she was Kitzmiller’s codefendant and “a person who had first-
    hand knowledge of the facts at issue,” whereas the case referred
    to by the related model jury instruction was not such a situation,
    see State v. Charles, 
    2011 UT App 291
    , ¶¶ 15, 40–41, 
    263 P.3d 469
    (considering an in-custody informant instruction where the
    informant was incarcerated with the defendant and testified
    about details the defendant had told him regarding the murder
    for which the defendant was charged).
    ¶29 “Failure to give requested jury instructions constitutes
    reversible error only if their omission tends to mislead the jury to
    the prejudice of the complaining party or insufficiently or
    erroneously advises the jury on the law.” State v. Van Oostendorp,
    
    2017 UT App 85
    , ¶ 12, 
    397 P.3d 877
     (quotation simplified). So
    even assuming, without deciding, that the proposed instruction
    would have been appropriate and that the district court erred by
    not instructing the jury as requested, we will not reverse where
    prejudice has not been shown and the jury was appropriately
    advised on the law. See 
    id. ¶30
     Kitzmiller’s requested instruction stated, “[T]he testimony
    of an informant who provides evidence against a defendant
    must be examined and weighed by you with greater care than
    the testimony of an ordinary witness.” It further provided the
    following factors for the jury to consider:
    1. Whether the informant has received anything
    (including leniency in prosecution, personal
    advantage, or vindication) in exchange for
    testimony;
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    State v. Kitzmiller
    2. Other cases, and the number of other cases, in
    which the informant testified or offered statements
    against another, whether those statements are
    being used, and whether the informant received
    any deal, promise, inducement, or benefit in
    exchange for that testimony or statement, or
    believed he was likely to receive some benefit from
    his cooperation;
    3. Whether the informant has ever changed her
    testimony;
    4. The criminal history of the informant, not just
    limited to number of convictions, but also the level
    of sophistication gained through the informant’s
    experience in the criminal justice system; and
    5. Any other evidence related to the informant’s
    credibility.
    But where there was no evidence in the record that Girlfriend
    had testified in any other cases (the second factor) or gained any
    experience with the criminal justice system beyond the facts of
    this case (the fourth factor), some factors of the proposed
    instruction would have had no impact on the jury’s evaluation of
    Girlfriend’s testimony. Indeed, the inclusion of such factors in
    the instructions may even have been confusing for the jury.
    ¶31 Each of the remaining factors of the proposed
    instruction—the factors that arguably were applicable in this
    case—were included in the more general witness credibility
    instruction given to the jury. That instruction listed several
    factors to consider in evaluating witness credibility, including
    the following: “Does the witness have something to gain or lose
    from this case?”, “Does the witness have any reason to lie or
    slant the testimony?”, and “Was the witness’s testimony
    consistent over time?” Thus, the credibility instruction that was
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    given urged the jury to consider all the applicable factors of
    Kitzmiller’s requested instruction.
    ¶32 Kitzmiller’s requested instruction also stated that an
    informant’s testimony must be weighed with greater care and
    elaborated that this need for care was because “a witness who
    has entered into . . . an agreement with the government may
    have an interest in the case different than an[] ordinary witness.”
    But where the jury was made aware of Girlfriend’s plea
    agreement, where the jury heard Girlfriend admit she was
    hoping to get probation in exchange for cooperating with the
    State, where the court clarified that trial counsel was free “to
    argue any of the factors with regard to impeachment,” and
    where trial counsel had pointedly argued to the jury the negative
    implications of the plea arrangement on Girlfriend’s credibility,
    we are convinced the jury was aware of Girlfriend’s apparent
    self-interest in testifying against Kitzmiller. And that awareness
    would have led to a more critical evaluation of Girlfriend’s
    testimony under the witness credibility factors that were before
    the jury—resulting in a more careful scrutiny of Girlfriend’s
    testimony than that of the other witnesses who had relatively
    little to gain or lose from testifying in the case. Under these facts,
    we conclude there is no reasonable likelihood of a more
    favorable result for Kitzmiller had his requested jury instruction
    been given.
    ¶33 As an alternative argument on this issue, Kitzmiller
    contends that trial counsel should have provided additional
    legal argument to the district court. Specifically, he argues that
    when the court indicated that it was not convinced to use an in-
    custody informant instruction and asked counsel for additional
    support, counsel should have switched tack and requested an
    instruction on accomplice testimony as addressed in Utah Code
    section 77-17-7.
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    ¶34 But as we explained above, see supra ¶¶ 19–20, to prevail
    on an ineffective assistance of counsel claim, Kitzmiller must
    show both that trial counsel’s performance was deficient and
    that such performance prejudiced his case; that is, he must show
    that the result would have been different but for counsel’s error.
    Even assuming that the failure Kitzmiller highlights constitutes
    deficient performance, his claim fails because he has not
    established prejudice.
    ¶35 First, the statute on which Kitzmiller relies would only
    require the court to give an accomplice testimony instruction in
    certain cases:
    (1)   A conviction may be had on                  the
    uncorroborated testimony of an accomplice.
    (2)     In the discretion of the court, an instruction
    to the jury may be given to the effect that such
    uncorroborated testimony should be viewed with
    caution, and such an instruction shall be given if the
    trial judge finds the testimony of the accomplice to
    be self contradictory, uncertain or improbable.
    Utah Code Ann. § 77-17-7 (LexisNexis 2017) (emphasis added).
    And Kitzmiller has not shown that the court likely would have
    determined Girlfriend’s testimony was “self contradictory,
    uncertain or improbable,” thus requiring the accomplice
    testimony instruction. See id. And second, even if such an
    instruction were given, we are not convinced there is a
    reasonable probability that the result of his trial would have
    been different. As discussed above, where the general witness
    credibility jury instruction already encouraged the jury to
    consider what each witness would gain from testifying, whether
    each witness had any reason to lie, and whether a witness’s
    testimony was consistent, and where trial counsel successfully
    alerted the jury to Girlfriend’s self-interest in testifying, we are
    not convinced there is a reasonable likelihood that the result
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    State v. Kitzmiller
    would have been more favorable to Kitzmiller if an accomplice
    testimony instruction had been given. See State v. Dunn, 
    850 P.2d 1201
    , 1226–28 (Utah 1993) (finding no prejudice from a trial
    attorney’s failure to request an accomplice testimony jury
    instruction under section 77-17-7 when the jury was aware of the
    accomplice’s plea arrangement and his concomitant “motive to
    tailor his testimony to favor the prosecution,” as well as the
    accomplice’s general “propensity to lie,” and when the jury was
    instructed to consider self-interest and motive in assessing
    witness credibility), abrogated on other grounds by State v. Silva,
    
    2019 UT 36
    , 
    456 P.3d 718
    . Thus, under these facts, Kitzmiller has
    not established prejudice.4
    III. Sufficiency of the Evidence
    ¶36 Kitzmiller argues the evidence was insufficient to support
    the jury’s guilty verdicts on Counts II and IV. Although he
    concedes the evidence established that Baby’s injuries were not
    accidental and that someone abused Baby, he argues there was
    4. Kitzmiller also makes a cumulative error argument, asserting
    that even if the two jury instruction errors are not prejudicial on
    their own, when taken together they undermine confidence in
    the fairness of his trial. We will reverse under the cumulative
    error doctrine only if “(1) an error occurred, (2) the error,
    standing alone, has a conceivable potential for harm, and (3) the
    cumulative effect of all the potentially harmful errors
    undermines [our] confidence in the outcome.” State v. Martinez-
    Castellanos, 
    2018 UT 46
    , ¶ 42, 
    428 P.3d 1038
    . Even assuming that
    the alleged errors carried a “conceivable potential for harm,” see
    
    id.,
     their combined effect is not such that it “undermines our
    confidence that a fair trial was had,” see State v. Maestas, 
    2012 UT 46
    , ¶ 363, 
    299 P.3d 892
     (quotation simplified). Thus, Kitzmiller’s
    cumulative error argument is unavailing.
    20190716-CA                     16                   
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    State v. Kitzmiller
    “no evidence” about who caused the injuries and therefore “the
    jury necessarily engaged in speculation to reach its conclusions.”
    ¶37 For each of the child abuse charges, the State was required
    to prove beyond a reasonable doubt that Kitzmiller
    “intentionally or knowingly” inflicted a “serious physical injury”
    on Baby.5 See Utah Code Ann. § 76-5-109(2), (2)(a) (LexisNexis
    2017). For Count II, the serious physical injury was Baby’s
    broken arm; and for Count IV, the serious physical injury was
    two or more of the lesser injuries. See id. § 76-5-109(1)(f)(ii)
    (specifying that the term “[s]erious physical injury” includes,
    among other things, a “fracture of any bone” or “any
    combination of two or more physical injuries inflicted by the
    same person, either at the same time or on different occasions”).
    ¶38 As an initial matter, we note that our analysis must
    consider more than the direct evidence presented at trial: “Direct
    evidence is not required. Sustainable verdicts are entered every
    day on the sole basis of circumstantial evidence. And where the
    jury returns a verdict that is reasonably sustained by
    circumstantial evidence and the inferences drawn from it, we
    must uphold the jury’s verdict.” State v. Nielsen, 
    2014 UT 10
    ,
    ¶ 47, 
    326 P.3d 645
     (quotation simplified). It is also important to
    distinguish between inferences, which are permissible support
    for a guilty verdict, and mere speculation, which Kitzmiller
    argues underlies the verdict here. “An inference is a conclusion
    reached by considering other facts and deducing a logical
    consequence from them. On the other hand, speculation is the
    5. Although these charges also could have been supported by a
    showing that Kitzmiller caused or allowed another individual to
    inflict serious physical injury on Baby while Baby was in his
    care, see Utah Code Ann. § 76-5-109(2) (LexisNexis 2017), the
    State did not pursue this theory at trial, and we do not consider
    it in our analysis.
    20190716-CA                    17               
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    State v. Kitzmiller
    act or practice of theorizing about matters over which there is no
    certain knowledge at hand.” State v. Prisbrey, 
    2020 UT App 172
    ,
    ¶ 23, 
    479 P.3d 1126
     (quotation simplified). Thus, “the difference
    between an inference and speculation depends on whether the
    underlying facts support the conclusion.” 
    Id.
     (quotation
    simplified).
    ¶39 Furthermore, as outlined above, see supra ¶ 17, our review
    on this issue must take into account the evidence and reasonable
    inferences in the light most favorable to the jury verdict, see State
    v. Hamilton, 
    827 P.2d 232
    , 236 (Utah 1992). And we must assume
    the jury believed the evidence that supports the verdict. State v.
    Widdison, 
    2001 UT 60
    , ¶ 74, 
    28 P.3d 1278
    . Therefore, we will
    overturn the verdict only if the evidence “is so insufficient that
    reasonable minds could not have reached the verdict.” 
    Id.
    (quotation simplified).
    ¶40 Much of the underlying evidence, if believed, supported
    the jury’s verdict here. First, Girlfriend’s testimony was not
    simply that Kitzmiller sometimes was careless in handling Baby;
    instead, she testified that he was often angry with Baby and she
    observed several instances of inappropriate handling that she
    worried would harm Baby. Among these was Kitzmiller tossing
    Baby between his hands and into the air as well as an episode in
    which Kitzmiller held Baby by the shoulders and angrily shook
    him. Second, the child abuse pediatrician testified that those
    types of actions could have been related to the injuries referred
    to in Count II and Count IV. She testified that Baby’s broken arm
    (addressed in Count II) would have been caused by some
    “spiral-type grab” such as a “twisting mechanism or yanking”
    because it was an “oblique” fracture, going “diagonally across
    the bone.” She said that this could have been caused by tossing
    Baby into the air and then catching him by the arm. The
    pediatrician also testified that some of Kitzmiller’s actions, as
    reported by Girlfriend, could have caused several of the lesser
    injuries addressed in Count IV. See supra ¶ 26. Third, there was
    20190716-CA                     18                 
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    State v. Kitzmiller
    evidence that the bloody clothing recovered from the hamper
    was Baby’s clothing and men’s clothing.6 Fourth, several pieces
    of evidence touched on Kitzmiller’s reactions to the events at
    issue. Girlfriend reported Kitzmiller dissuaded her from seeking
    medical attention for Baby because Baby might be removed from
    her care. Several police officers responding on the night Baby
    died reported that Kitzmiller was nervous, panicky, angry, or
    defensive. And Girlfriend testified that after Baby’s death,
    Kitzmiller said he thought Baby’s death was his fault.
    ¶41 This underlying evidence could have sustained a
    reasonable inference that Kitzmiller intentionally or knowingly
    caused Baby’s broken arm and two or more of his more minor
    injuries. Thus, sufficient evidence supports the jury’s verdict on
    these counts and we will not overturn Kitzmiller’s convictions
    on sufficiency grounds.
    CONCLUSION
    ¶42 Kitzmiller has failed to show prejudice arising from the
    lack of a separate unanimity instruction. He has also failed to
    show prejudice regarding the court’s refusal to give his
    requested in-custody informant instruction or his counsel’s
    failure to present a more persuasive argument on this issue. And
    we are unconvinced the trial evidence is insufficient to support
    his child abuse convictions. Therefore, we affirm.
    6. Kitzmiller argues evidence of the bloody clothing should not
    be considered because the State presented no evidence
    concerning whose blood this was or where the blood would
    have come from. Although he cites no authority supporting this
    position, we note that our reliance on this evidence is minimal
    and our decision would be the same even without considering it.
    20190716-CA                    19               
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