State v. Van Oostendorp , 397 P.3d 877 ( 2017 )


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    2017 UT App 85
    THE UTAH COURT OF APPEALS
    STATE OF UTAH,
    Appellee,
    v.
    TREVOR PAUL VAN OOSTENDORP,
    Appellant.
    Opinion
    No. 20150135-CA
    Filed May 18, 2017
    First District Court, Logan Department
    The Honorable Brian G. Cannell
    No. 141100266
    David M. Perry, Attorney for Appellant
    Sean D. Reyes and Jeanne B. Inouye, Attorneys
    for Appellee
    JUDGE STEPHEN L. ROTH authored this Opinion, in which JUDGE
    GREGORY K. ORME concurred. Judge J. FREDERIC VOROS JR.
    concurred, with opinion.
    ROTH, Judge:
    ¶1     After a jury trial, Trevor Paul Van Oostendorp was
    convicted of forcible sodomy and sentenced to an indeterminate
    prison term of five years to life. He appeals the conviction,
    challenging the evidence used against him and one of the court’s
    jury instructions. We affirm.
    State v. Van Oostendorp
    BACKGROUND1
    ¶2     Van Oostendorp met Victim online in April 2013 and then
    in person in May. They began a relationship that Victim
    described as initially good and that included consensual sex.
    However, by late summer the relationship began to sour; Van
    Oostendorp started to use derogatory language to describe
    Victim, and he became physically abusive by pushing and
    shoving her “a lot.” Victim also found Van Oostendorp to be
    temperamental. His temper was often triggered by money issues
    related to alimony and child support from a previous marriage,
    and he would take his anger out on Victim.
    ¶3     By the fall of 2013, Van Oostendorp became more abusive.
    During oral sex on one occasion, he held Victim’s head down
    until she began to vomit, telling her afterwards that he thought
    “it was hot.” During one argument in which he accused Victim
    of being unfaithful, Van Oostendorp reached for a gun and
    threatened to hold it to her head to make sure she was
    answering truthfully. Although she was able to calm him down
    that time, Victim also recounted an incident the following
    January in which Van Oostendorp again threatened her with
    violence. After losing his temper, he told Victim “that he was
    going to shoot [her]. That he was going to scalp [her]. That he
    was going to beat [her] face in. That [her] daughter would no
    longer have a mother.” Victim called the police, but Van
    Oostendorp had fled the scene by the time they arrived.
    Afterwards, the pair temporarily reconciled.
    ¶4    The next month, over Valentine’s Day weekend, the two
    quarreled again over the phone and by text message. Although
    1. “On appeal, we review the record facts in a light most
    favorable to the jury’s verdict and recite the facts accordingly.”
    State v. Brown, 
    948 P.2d 337
    , 339 (Utah 1997).
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    State v. Van Oostendorp
    they had previously made plans for the weekend, Van
    Oostendorp became upset and told Victim, “I’m not coming back
    there at all. I’m done.” When Victim asked about the $1,000 Van
    Oostendorp owed her, he told her to “take the thousand
    dollars.” Using a signed blank check that Van Oostendorp had
    previously given her, Victim did so. However, Van Oostendorp
    then “got irate” when he learned that she had actually followed
    through on his offer. He told her he had reported her to the
    fraud department at his bank and that she was “going to go to
    jail . . . [and] going to lose [her] daughter.” When Victim accused
    Van Oostendorp of lying to the bank about the cashed check, he
    said, “You’re damn skippy I lied.” Van Oostendorp also
    threatened to beat Victim and claimed that she was “going to
    have marks” that she would need to explain away at work.
    Victim was “absolutely terrified” by the threats, and she called
    her ex-husband to ensure that he would “take care of [their
    daughter]” if she did not “make it out today.”
    ¶5     Still interacting by phone and apparently having
    reconsidered his earlier beakup text, Van Oostendorp ordered
    Victim to “get ready for him” to come home by taking a bath.
    Although she did not know what she was getting ready for,
    Victim complied because she “was so scared of him and [she]
    just wanted to try to ease things over and try and calm him
    down.” As Victim described the events at trial, Van Oostendorp
    ordered her to stand against the wall in the shower when he
    arrived at the house. He removed his belt, smacked her with it,
    and then put the belt in her mouth. He pushed her down onto
    her knees in the bath tub. He began to urinate “on [her] head
    and in [her] eyes, and it was running in [her] mouth,” which she
    was not able to close because of the belt. As he did this, he asked
    Victim, “How do you like that? How do you like that?”
    ¶6    Van Oostendorp then got undressed, stood Victim up,
    and pushed her forward so that he was behind her. He spit on
    her anus and then “shoved” his penis into it. Victim, crying,
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    screamed in pain and said, “No, stop. It hurts.” Van Oostendorp
    told Victim to be quiet because he did not want the neighbors to
    hear. He also forced Victim to look at herself “in the mirror with
    the urine in [her] hair and [her] makeup running down [her]
    face.” Finally, he put her in the shower and told her to clean off.
    When Victim got out of the shower, she was in pain, physically
    shaking, and bleeding. When asked at trial whether the sexual
    encounter in the bathroom was consensual, Victim testified,
    “No, it was not.”
    ¶7      The State charged Van Oostendorp with forcible sodomy,
    a first degree felony, under Utah Code section 76-5-403. Before
    trial, Van Oostendorp moved for a determination of whether
    Victim was competent to testify at trial and whether her
    testimony was reliable. The court denied the motion, finding that
    it had “no legitimate doubts” about her competency and that
    any questions of reliability “could be adequately investigated
    through cross-examination.” Van Oostendorp also sought to
    exclude evidence about his history of abusive treatment of
    Victim under Utah Rule of Evidence 404(b), which prohibits the
    use of prior bad acts “to prove a person’s character in order to
    show that on a particular occasion the person acted in
    conformity with the character.” The court allowed much of the
    contested evidence, but excluded some.
    ¶8     At trial, Van Oostendorp conceded that much of the
    alleged conduct, and specifically the anal sex, had taken place.
    Thus, whether the sodomy itself—the actus reus of the crime—
    had occurred was not at issue. Instead, the question for the jury
    was one of consent. The State put on evidence that Victim had
    not consented and that Van Oostendorp was at least reckless
    regarding the lack of consent. A significant part of the State’s
    theory of the case involved characterizing the relationship as
    generally abusive. Specifically, the State characterized Victim as
    the subject of a pattern of domestic abuse, sexual and otherwise.
    Van Oostendorp’s defense likewise focused on Victim’s consent
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    State v. Van Oostendorp
    and his mens rea regarding her consent. He argued that he was
    acting under a mistake of fact as to Victim’s consent when the
    sexual acts underlying the charge took place, a mistaken belief
    he claimed was supported by the couple’s pattern of
    consensually engaging in rough sexual activity in the past. That
    is, his trial theory was that he reasonably thought she consented,
    even if she did not.
    ¶9      Van Oostendorp sought a jury instruction based on this
    theory. While the court did not submit the requested instruction
    to the jury, it did add a paragraph to an existing instruction that
    addressed the effect of a mistaken belief as to consent. The jury
    convicted Van Oostendorp of forcible sodomy, and he was
    sentenced to a prison sentence of five years to life. He appeals.
    ISSUES AND STANDARDS OF REVIEW
    ¶10 Van Oostendorp raises three arguments in this appeal.
    First, he contends that the State submitted insufficient evidence
    to sustain a jury verdict against him. “When a jury verdict is
    challenged on the ground that the evidence is insufficient, . . .
    [w]e 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) (citation an internal quotation marks omitted). “We reverse
    a jury conviction for insufficient evidence only when the
    evidence, so viewed, is sufficiently inconclusive or inherently
    improbable that reasonable minds must have entertained a
    reasonable doubt that the defendant committed the crime of
    which he was convicted.” 
    Id.
     (citation and internal quotation
    marks omitted).
    ¶11 Second, Van Oostendorp argues that the trial court
    applied rule 404(b) too broadly and erroneously allowed
    evidence of prior bad acts that was unduly prejudicial. “We
    review a trial court’s decision to admit other acts evidence under
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    State v. Van Oostendorp
    rule 404(b) of the Utah Rules of Evidence under an abuse of
    discretion standard.” State v. Plexico, 
    2016 UT App 118
    , ¶ 22, 
    376 P.3d 1080
     (brackets, citation, and internal quotation marks
    omitted).
    ¶12 Third, Van Oostendorp claims that the trial court erred
    when it declined to give the jury his proposed mistake of fact
    instruction. “Whether a trial court committed error in refusing to
    give a requested jury instruction is a question of law, which we
    review for correctness.” State v. Kruger, 
    2000 UT 60
    , ¶ 11, 
    6 P.3d 1116
    . However, “[f]ailure 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.
    Stringham, 
    2001 UT App 13
    , ¶ 17, 
    17 P.3d 1153
     (citation and
    internal quotation marks omitted).
    ANALYSIS
    I. Sufficiency of the Evidence
    ¶13 Van Oostendorp argues that the “[e]vidence presented by
    the State was not sufficient to sustain a jury verdict against
    [him]” because Victim “was incompetent and too unreliable to
    testify.” Without Victim’s testimony, which he contends the
    court should have excluded, “the chances of the State securing a
    conviction against [Van Oostendorp] were exceedingly
    miniscule, if [not] non-existent.” Assuming without deciding
    that Victim’s testimony was essential to the State’s case, the
    question presented on appeal is whether the court properly
    determined that Victim was competent to testify at Van
    Oostendorp’s trial.
    ¶14 “Utah law imposes a very low bar for establishing the
    competency of a witness.” State v. Calliham, 
    2002 UT 87
    , ¶ 22, 
    57 P.3d 220
    . Utah Rule of Evidence 601(a) states, “Every person is
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    State v. Van Oostendorp
    competent to be a witness unless these rules provide otherwise.”
    However, “[a] witness may testify to a matter only if evidence is
    introduced sufficient to support a finding that the witness has
    personal knowledge of the matter.” Utah R. Evid. 602. Although
    the rule requires some foundation for a witness’s testimony, the
    standard is quite low: “It merely requires that the witness have
    the opportunity and the capacity to perceive the events in
    question.” State v. Eldredge, 
    773 P.2d 29
    , 33 (Utah 1989).
    ¶15 In support of his argument that Victim was incompetent
    to testify, Van Oostendorp directs our attention to a single
    statement in Victim’s psychological evaluation, which stated,
    “[Victim] reported that she has experienced a loss of memory for
    specific aspects of the alleged sodomy.” As we understand it,
    Van Oostendorp contends that Victim’s memory gaps rendered
    her incapable of perceiving the events in question as required by
    the rules of evidence, or, more specifically, that the memory gaps
    prevent her from recalling the events, even if she perceived them
    in the first instance. He relies on Ladd v. Bowers Trucking, Inc.,
    
    2011 UT App 355
    , 
    264 P.3d 752
    , to support his contention. In that
    case we stated that “[the witness’s] admitted memory gap
    indicates that he lacked the capacity to ‘observe,’ even assuming
    he had the ‘opportunity’ to do so by being physically present at
    the scene.” Id. ¶ 8.
    ¶16 We agree that both the capacity to perceive events and the
    ability to recall them are integral to a witness’s competence to
    testify. Id. (“[A] lay witness is only competent to testify if . . . the
    witness both perceived a relevant event and can recall the
    event.” (citation and internal quotation marks omitted)).
    However, Ladd presents a significantly different scenario from
    the one at issue here. In that case, the witness “clearly stated in
    his deposition that his account of the [event] [was] ‘actually
    [him] reliving [his] dream’ and that, putting the dream aside, he
    otherwise had absolutely no recollection of the [event].” Id.
    (third and fourth alterations in original). Thus, the rule of Ladd is
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    State v. Van Oostendorp
    that a witness cannot testify to a matter of which she has no
    memory.
    ¶17 Here, in stark contrast, the psychological report explains
    the minor nature of Victim’s memory gaps. For instance, the
    report recounted her statement that “[s]ometimes the order [of
    the events in the shower] will get jumbled for me.” She also
    admitted to not remembering Van Oostendorp getting
    undressed during the incident, or what clothing he wore after
    the incident. But this sort of minor memory problem is far
    different from the circumstances in Ladd, where the witness
    conceded that he had absolutely no recollection of an event aside
    from a dream.
    ¶18 In addition, the record demonstrates that Victim had both
    the opportunity and the capacity to perceive the sodomy, and
    that she could recall the event in detail. For example, Victim’s
    testimony about the act itself—not including the lead up and
    aftermath—covers three pages of transcript, over half of which is
    comprised of her recounting the crime in specific detail without
    interruption or prompting by court or counsel. And her
    testimony made clear that her memory was based on her direct
    perception of the events as they occurred.
    ¶19 When addressing this issue below, the trial court
    determined that any questions about Victim’s ability to testify
    accurately and truthfully about the incident, including
    exploration of any memory gaps, “could be adequately
    investigated through cross-examination.” We agree. Victim was
    present during the event. She had the capacity to perceive the
    event, and she later recalled what happened in detail. Any
    minor memory gaps she displayed related to her credibility as
    a witness, if anything, not to her competency to give
    testimony. See State v. Prater, 
    2017 UT 13
    , ¶¶ 31–32, 
    392 P.3d 398
    (explaining that the jury is the exclusive judge of both witness
    credibility and the weight to be given particular testimony
    unless the testimony “was so unreliable that it cannot form the
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    State v. Van Oostendorp
    basis of a conviction”); see also State v. Christensen, 
    2016 UT App 255
    , ¶ 20, 
    387 P.3d 588
     (determining that a victim was competent
    to testify even though the effects of a drug rendered her memory
    incomplete).
    ¶20 Because “[t]he jury is the exclusive judge of credibility,”
    Utah Code Ann. § 78B-1-128(4) (LexisNexis 2012), “we will not
    act as a second trier of fact” on appeal, Prater, 
    2017 UT 13
    , ¶ 41.
    We therefore conclude that the trial court did not abuse it’s
    discretion in determining that Victim was competent to testify at
    trial and that any questions about her credibility were properly
    left to the jury.2
    2. Van Oostendorp also seems to argue that Victim’s testimony
    was unreliable and should have been excluded under rule 403,
    which allows the court to “exclude relevant evidence if its
    probative value is substantially outweighed by a danger of one
    or more of the following: unfair prejudice, confusing the issues,
    misleading the jury, undue delay, wasting time, or needlessly
    presenting cumulative evidence.” Utah R. Evid. 403. Van
    Oostendorp apparently contends that the same memory lapses
    that rendered Victim incompetent to testify also made her
    testimony so unreliable as to be unfairly prejudicial. Like his
    competency argument, however, this contention is about
    Victim’s credibility as a witness, not the reliability of her
    testimony. And as we have discussed, credibility questions are
    wholly within the province of the jury. Van Oostendorp has not
    undertaken the analysis necessary to demonstrate that Victim’s
    testimony was incredible as a matter of law. See State v. Prater,
    
    2017 UT 13
    , ¶ 32, 
    392 P.3d 398
     (explaining that the only
    exception to the general rule prohibiting appellate courts from
    “reassessing or reweighing evidence” occurs when testimony “is
    so inconclusive or inherently improbable that it could not
    support a finding of guilt beyond a reasonable doubt” (citation
    (continued…)
    20150135-CA                     9                
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    State v. Van Oostendorp
    II. Prior Bad Acts Evidence
    ¶21 Van Oostendorp next claims that the trial court
    erroneously allowed “a wide variety of evidence of prior ‘bad
    acts’ under Utah Rule of Evidence 404(b),” much of which “had
    no bearing on whether the alleged crime had taken place, and
    was used in a manner that served to impermissibly impugn [Van
    Oostendorp’s] character.”
    ¶22 Rule 404(b) controls the intersection of two competing
    evidentiary interests. On one hand, the rule recognizes the
    “dangers of exposing a jury to evidence of a defendant’s acts of
    prior misconduct—specifically, the risk that the jury will infer
    that the defendant has a reprehensible character, that he
    probably acted in conformity with it, and that he should be
    punished for his immoral character.” State v. Thornton, 
    2017 UT 9
    , ¶ 35, 
    391 P.3d 1016
     (citation and internal quotation marks
    omitted). “On the other hand, the rule also recognizes that acts
    of prior misconduct may also sustain an alternative—and
    entirely permissible—inference.” Id. ¶ 36. The rule can be
    difficult to apply, however, because “evidence of prior bad acts
    often will yield dual inferences—and thus betray both a
    permissible purpose and an improper one.” Id. ¶ 37 (citation and
    internal quotation marks omitted).
    (…continued)
    and internal quotation marks omitted)). Without such an
    analysis, Van Oostendorp cannot meet the heavy burden to
    show an error. See State v. Jones, 
    2015 UT 19
    , ¶ 29, 
    345 P.3d 1195
    (“Rule 403 imposes on [Van Oostendorp] the heavy burden not
    only to show that the risk of unfair prejudice is greater than the
    probative value, but that it substantially outweighs the probative
    value.” (brackets and internal quotation marks omitted)).
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    State v. Van Oostendorp
    ¶23 “Stated succinctly, to be admissible, evidence of prior bad
    acts must be relevant and offered for a genuine, noncharacter
    purpose; furthermore, the probative value of the evidence must
    not be substantially outweighed by the danger of unfair
    prejudice.” State v. Lucero, 
    2014 UT 15
    , ¶ 13, 
    328 P.3d 841
    ,
    abrogated in part on other grounds by Thornton, 
    2017 UT 9
    , 
    391 P.3d 1016
    . “The threshold 404(b) question is whether the evidence has
    a plausible, avowed purpose beyond the propensity purpose
    that the rule deems improper. If it does then the evidence is
    presumptively admissible (subject to rule 402 and 403 analysis).”
    Thornton, 
    2017 UT 9
    , ¶ 58 (emphasis omitted). Thus, a trial
    court’s job when confronted with a dispute under rule 404(b) is
    first “to assess the avowed basis for evidence of prior
    misconduct.” See id. ¶ 56. If the evidence is relevant and offered
    for a proper purpose, the court moves on “to judge its likely
    effect in prejudicing or confusing the jury” under rule 403. See id.
    To assist in the trial court’s determination, our supreme court
    has articulated factors that “may be helpful” in a rule 403
    analysis—the so-called Shickles factors. See Lucero, 
    2014 UT 15
    ,
    ¶¶ 31–32 (stating that a court “may consider” the factors
    announced in State v. Shickles, 
    760 P.2d 291
     (Utah 1988)).3
    3. Recently, our supreme court precedent has relegated the
    Shickles factors to marginal status. The court explained that,
    “while some of these factors may be helpful in assessing the
    probative value of the evidence in one context, they may not be
    helpful in another. It is therefore unnecessary for courts to
    evaluate each and every factor and balance them together in
    making their assessment.” State v. Lucero, 
    2014 UT 15
    , ¶ 32, 
    328 P.3d 841
    , abrogated in part on other grounds by State v. Thornton,
    
    2017 UT 9
    , 
    391 P.3d 1016
    ; see also State v. Lowther, 
    2017 UT 24
    ,
    ¶ 41. “This is because courts are bound by the text of rule 403,
    not the limited list of considerations outlined in
    Shickles. . . . Simply put, a trial court may exclude evidence if ‘its
    (continued…)
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    State v. Van Oostendorp
    ¶24 The trial court followed this process here. The State
    moved to admit evidence of prior bad acts and Van Oostendorp
    contested its admissibility under rule 404(b). After receiving
    briefing from both parties, the court held a hearing on the matter
    and issued a written order. In its order, the trial court analyzed
    fifteen categories of evidence offered by the State to consider
    whether they passed muster under rule 404(b) and rule 403. The
    court determined that six categories did not meet the rules’
    requirements but that nine did, including all four categories that
    Van Oostendorp now challenges. On appeal, “the question for us
    is not whether we would have admitted this evidence. It is
    whether the district [court] abused [its] broad discretion in doing
    so.” Thornton, 
    2017 UT 9
    , ¶ 56.
    ¶25 Van Oostendorp argues that the trial court erred in
    admitting a wide array of prior bad acts evidence under rules
    403 and 404(b). Before addressing these arguments, the context
    of the trial is helpful background. As we explained above, each
    party’s theory of the case centered on the issue of consent—the
    State argued that Victim did not consent to the sodomy, while
    Van Oostendorp argued that, even if she did not consent, he
    reasonably believed she did. In its case in chief, the State focused
    on the nature of the relationship. Specifically, the State used
    prior bad acts evidence to show that the relationship was
    generally abusive and to portray Victim as the frightened and
    demoralized target of Van Oostendorp’s abuse. In defense, Van
    Oostendorp’s theory of the case was that “much of the [bad acts
    evidence]      was    part   and     parcel    to    the    couple’s
    submissive/dominant type of sexual [relationship] that was
    completely consensual.”
    (…continued)
    probative value is substantially outweighed by’ a number of
    considerations, including ‘the danger of unfair prejudice.’”
    Lucero, 
    2014 UT 15
    , ¶ 32 (quoting Utah R. Evid. 403).
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    State v. Van Oostendorp
    ¶26 On appeal, Van Oostendorp asserts that four types of
    evidence should have been excluded from trial: his text
    messages to Victim that included disrespectful language and
    name calling; evidence that Van Oostendorp viewed Victim as a
    sex object; evidence of his use of a weapon to intimidate Victim
    and associated death threats; and an alleged threat to stab Victim
    with a knife the day after the charged events. These four
    individual types of evidence fall into two broad categories: first,
    Van Oostendorp’s demeaning treatment of Victim, including the
    text messages with name-calling and disrespectful language, and
    the “sex object” evidence; and second, the threats of violence
    against her.
    ¶27 In its pretrial evidentiary ruling, and with both parties’
    theories of the case in mind, the court addressed each category of
    evidence that Van Oostendorp now contests. With regard to the
    first, the court determined that evidence of Van Oostendorp’s
    disrespectful language and name calling was “relevant to the
    overall story from both parties.” The court also chose to consider
    the Shickles factors and found that “the strength of the evidence
    is sufficient, [the text messages] are close in time, need has been
    shown, and they are no worse than the crime charged.”
    Likewise, the court allowed evidence that Van Oostendorp
    viewed Victim as a sex object because such evidence was “part
    of both parties’ theories of the case.”
    ¶28 Van Oostendorp claims the court erred in admitting a
    “vast number of text messages” because “problems arise at every
    step” of a rule 403 balancing test based on the Shickles factors.
    Specifically, he contends that there was no non-character
    purpose for the evidence of disrespect and name calling and that
    it was not relevant to the State’s case. He also claims that the
    “sex object” evidence had “no bearing on whether the sexual
    assault alleged occurred or not.” However, Van Oostendorp
    does not support his contentions with descriptions and analysis
    of any specific text messages, or even groups of messages, that
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    he claims the trial court wrongly allowed into evidence; rather,
    he presents us with a single “see generally” record citation to
    four volumes of trial transcript. Those four volumes encompass
    almost all the non-expert testimony presented in the case and
    span more than 780 pages. We decline to sift through days of
    trial transcript on Van Oostendorp’s behalf. See State v. Thomas,
    
    961 P.2d 299
    , 305 (Utah 1998) (“[T]his court is not a depository in
    which the appealing party may dump the burden of argument
    and research.” (citation and internal quotation marks omitted)).
    ¶29 Even if Van Oostendorp had cited discrete portions of the
    record, he has still not shown how the trial court abused its
    discretion when it admitted the texts. To be sure, Van
    Oostendorp suggests that the court should have weighed the
    Shickles factors differently. As we explained above, though, the
    Shickles factors “may be helpful” to a court in applying the text
    of rule 403, but applying them is not required. See State v. Lucero,
    
    2014 UT 15
    , ¶ 32, 
    328 P.3d 841
    , abrogated in part on other grounds
    by State v. Thornton, 
    2017 UT 9
    , 
    391 P.3d 1016
    . Rather, the
    operative question is a broader one—whether the “probative
    value [of the evidence] is substantially outweighed by a number
    of considerations, including the danger of unfair prejudice.” 
    Id.
    (citation and internal quotation marks omitted). That balancing
    exercise is necessarily a matter of discretion.
    ¶30 Here the trial court issued an order that explained in
    some detail the basis for its decision to admit the disputed
    evidence. That explanation seems reasonable on its face. See
    Diversified Holdings, L.C. v. Turner, 
    2002 UT 129
    , ¶ 6, 
    63 P.3d 686
    (“We . . . will not overturn a lower court’s determination of
    admissibility [under rule 403] unless it is beyond the limits of
    reasonability.” (citation and internal quotation marks omitted)).
    Van Oostendorp fails to explain how the trial court’s actual
    analysis of the specific evidence at issue was unsound.
    ¶31 For instance, the court determined that the text messages
    and “sex object” evidence were relevant to both the State’s
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    theory and Van Oostendorp’s theory of the case. Indeed, in
    keeping with his claim to have been mistaken about Victim’s
    lack of consent to the sexual acts with which he was charged,
    Van Oostendorp “testified at length that [the] back and forth” in
    the text messages was a “playful, erotic, and consensual” part of
    the relationship rather than disrespectful and abusive. And
    evidence that he treated her as a sex object throughout their
    relationship, which Van Oostendorp candidly acknowledges
    “could loosely apply . . . to a vast majority of the interactions
    between” the two, is clearly relevant to whether he actually
    misperceived Victim’s lack of consent to the sodomy or simply
    had so little regard for Victim that her consent—or lack thereof—
    was of no interest to him at all.
    ¶32 Without any meaningful analysis, it is not evident how
    the court’s decision to admit evidence that Van Oostendorp
    himself relied on was unreasonable. Because he does not engage
    with the trial court’s reasoning, Van Oostendorp has not
    persuaded us that the court abused its discretion. See Allen v.
    Friel, 
    2008 UT 56
    , ¶¶ 14–18, 
    194 P.3d 903
     (noting that, for an
    appellant to persuade a reviewing court that the district court’s
    determinations were in error, the appellant must engage with
    and challenge the actual bases of the district court’s decisions).
    ¶33 With regard to the second category of evidence, the trial
    court allowed testimony that Van Oostendorp had made threats
    against Victim, involving weapons, during two separate
    confrontations. The court determined such evidence was
    “relevant to establish an abusive/domestic violence relationship”
    and that it went “to the alleged victim’s state of mind and to the
    issue of consent on the part of the victim,” both non-character
    purposes. The court then concluded that the evidence would not
    unduly prejudice the jury because the evidence was “no worse
    than the alleged crime.”
    ¶34 Van Oostendorp argues that the court should have
    excluded this evidence because the question of whether a gun
    20150135-CA                    15               
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    State v. Van Oostendorp
    was involved during an argument with Victim “came down to a
    ‘he said/she said’ confrontation” and that there “was no real
    non-character purpose for offering [the] evidence.” He also
    claims that the evidence of threats had “no bearing on whether
    the alleged assault [he was charged with] ever took place.” And
    as with the text message evidence, Van Oostendorp asserts
    broadly that, in analyzing the evidence “under the Shickles
    factors, such evidence should not have been allowed.”
    ¶35 It is true that the evidence in question was not relevant to
    whether the sexual act underlying the sodomy charge actually
    took place, but that was not an issue at trial—Van Oostendorp
    admitted that it had, but claimed it was consensual. The State
    offered the evidence for the purpose of rebutting that very claim.
    In its order, the trial court determined that the evidence satisfied
    the Shickles factors, was “relevant to establish an
    abusive/domestic violence relationship,” and “[went] to the
    alleged victim’s state of mind.” That is, the court determined
    that there was a non-character purpose for the evidence, that it
    was relevant, and that any danger of unfair prejudice did not
    outweigh the probative value of the evidence. See State v. Lucero,
    
    2014 UT 15
    , ¶ 13, 
    328 P.3d 841
    , abrogated in part on other grounds
    by State v. Thornton, 
    2017 UT 9
    , 
    391 P.3d 1016
     (laying out the test
    for admissibility of prior bad acts evidence).
    ¶36 We agree with the trial court. The evidence was highly
    probative, specifically on the issue of Victim’s consent—the key
    issue on which Van Oostendorp’s defense turned. Indeed, his
    defense opened the door to evidence about his own state of
    mind. See State v. Rees, 2002 UT App 347U, para. 3 (“The trial
    court did not abuse its discretion in admitting the [404(b)]
    evidence because [the defendant] had already put his intent and
    his alleged mistake regarding the victim’s consent squarely at
    issue.”). The prosecution used evidence of his threats to harm
    Victim with weapons to rebut Van Oostendorp’s theory that he
    justifiably believed that Victim had consented to the charged act
    20150135-CA                     16                
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    State v. Van Oostendorp
    of sodomy because she had agreed to rough sex in the past. The
    State’s rule 404(b) evidence responded to that claim by painting
    a picture of the defendant as a bully not particularly attentive to
    the nuances of a consensual sexual relationship, and also by
    suggesting that any apparent cooperation by Victim in rough or
    demeaning sex acts in the past was a product of the abusive and
    threatening environment Van Oostendorp had created and not
    her own free will.
    ¶37 Thus, all the evidence at issue on appeal was relevant to
    rebut Van Oostendorp’s defense that he reasonably assumed
    Victim consented to the acts underlying the charges because she
    had consented to similar acts before. And because the trial court
    determined that the State clearly offered the evidence for a
    noncharacter purpose, it would take more than the conclusory
    analysis Van Oostendorp has provided on appeal to persuade us
    that the trial judge exceeded his “discretion in deciding that the
    probative value of this evidence was not substantially
    outweighed by the risk of unfair prejudice.” Thornton, 
    2017 UT 9
    ,
    ¶ 63, (internal quotation marks omitted). For these reasons, we
    are not persuaded that the trial court abused its discretion when
    it admitted the evidence Van Oostendorp challenges on appeal.
    III. Jury Instruction
    ¶38 Finally, Van Oostendorp argues that the trial court erred
    when it declined to give the defense’s proposed mistake-of-fact
    instruction to the jury. The court should have issued the
    instruction, he claims, because, “if the evidence supports an
    affirmative defense, the State has the burden to prove beyond a
    reasonable doubt that the defense does not apply.”
    ¶39 In the proceedings below, Van Oostendorp argued that he
    had a statutory right to raise mistake-of-fact as an affirmative
    defense. See 
    Utah Code Ann. § 76-2-304
    (1) (LexisNexis 2012)
    (“Unless otherwise provided, ignorance or mistake of fact which
    disproves the culpable mental state is a defense to any
    20150135-CA                    17                
    2017 UT App 85
    State v. Van Oostendorp
    prosecution for that crime.”). The court agreed. Van Oostendorp
    proposed language that, he claimed, properly instructed the jury
    on his mistake-of-fact defense and the applicable burden of
    proof. The State objected to the instruction and the court heard
    argument on whether to give it. Ultimately, the court decided
    not to give the proposed instruction to the jury because there
    was no clear Utah precedent for doing so. However, the court
    did agree to add language to the existing elements instruction in
    keeping with this court’s decision in State v. Marchet, 
    2012 UT App 197
    , 
    284 P.3d 668
    . Specifically, the court added one
    paragraph to the existing elements jury instruction. It read, “If
    you are convinced that the defendant honestly and reasonably
    believed that [Victim] consented to the sexual activity with the
    Defendant then you must find the defendant NOT GUILTY.”
    ¶40 Van Oostendorp’s point on appeal is that his testimony
    and the testimony of his expert witness entitled him to a separate
    jury instruction addressing his alleged mistake of fact as to
    Victim’s consent. Accordingly, Van Oostendorp contends that
    the trial court erred in rejecting the proposed instruction. As we
    understand it, Van Oostendorp believes that the court’s decision
    to “add some language”—the additional paragraph quoted
    above—instead of giving the jury his proposed instruction
    verbatim denied him the right to present his theory of defense.
    Yet Van Oostendorp’s brief neither quotes nor describes the
    rejected instruction. Nor does Van Oostendorp quote or describe
    the language the court added to the elements instruction for the
    express purpose of presenting the jury with an alternative
    description of the mistake defense Van Oostendorp had offered.
    Instead, Van Oostendorp has simply attached a number of jury
    instructions to the brief. But these are not labeled or referred to
    in the text of the brief and we are not told which of these
    instructions were given and which rejected. More importantly,
    Van Oostendorp has not compared or contrasted the instruction
    he proposed with the one the trial court gave to the jury as an
    alternative.
    20150135-CA                    18                
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    State v. Van Oostendorp
    ¶41 “Failure to give [a] requested jury instruction[] constitutes
    reversible error only if [its] 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. Stringham, 
    2001 UT App 13
    , ¶ 17, 
    17 P.3d 1153
     (citation and internal quotation
    marks omitted). Thus, where the trial court adds language to a
    jury instruction to accommodate the theory of the case embodied
    in the defense’s proffered jury instruction, and the defendant
    claims on appeal that the added language failed to protect his
    rights, we expect the defendant’s opening brief to identify the
    language at issue and explain its deficiencies. And because Van
    Oostendorp’s brief does not, he has not persuaded us that a
    reversible error occurred.4 See 
    id.
    CONCLUSION
    ¶42 We conclude that Victim was competent to testify at trial
    and that there was therefore sufficient evidence for a jury to
    convict. Further, Van Oostendorp has not persuaded us that the
    4. Van Oostendorp does not acknowledge the trial court’s
    additional jury instruction language until his reply brief, and he
    does so then only after the State argued that the failure to do so
    in his opening brief was a basis for affirmance. See Allen v. Friel,
    
    2008 UT 56
    , ¶ 8, 
    194 P.3d 903
     (“It is well settled that
    [arguments] . . . that were not presented in the opening brief are
    considered waived and will not be considered by the appellate
    court.” (citation and internal quotation marks omitted)). And in
    his reply, Van Oostendorp finds fault only with the court’s
    inclusion of the word “honestly” in the phrase “honestly and
    reasonably believed.” We therefore do not reach the issue of
    whether the trial court’s added language was a correct statement
    of the law.
    20150135-CA                     19                
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    State v. Van Oostendorp
    trial court erred in admitting evidence of prior bad acts or that
    the jury instructions violated his rights. Affirmed.
    VOROS, Judge (concurring):
    ¶43 I concur in the opinion of the court. I write separately
    only to emphasize what I believe to be the limited role of the so-
    called Shickles factors in rule 403 analysis.
    ¶44 Our supreme court has clarified that Utah courts are
    “bound by the text of rule 403.” State v. Lucero, 
    2014 UT 15
    , ¶ 32,
    
    328 P.3d 841
    , abrogated on other grounds by State v. Thornton, 
    2017 UT 9
    , 
    391 P.3d 1016
    . In contrast, “the Shickles factors were not
    rooted in the text of the operative rule; they were ‘drawn from’
    the McCormick on Evidence treatise.’” State v. Rushton, 
    2017 UT 21
    , ¶ 53 n.2 (Lee, Associate Chief J., concurring in the judgment)
    (quoting Lucero, 
    2014 UT 15
    , ¶ 32). “And in time [our supreme
    court was] forced to repudiate the Shickles factors—identifying
    unforeseen consequences arising from an attempt to formulate
    factors not rooted in the text of the governing law, and backing
    away from the Shickles factors and pointing the courts back to
    rule 403.” 
    Id.
     Accordingly, “the Shickles factors should not limit
    the considerations of a court when making a determination of
    evidence’s admissibility under rule 403.” State v. Cuttler, 
    2015 UT 95
    , ¶ 18, 
    367 P.3d 981
    . Indeed, the supreme court has now ruled
    that a district court abuses its discretion “by mechanically
    applying the Shickles factors.” State v. Lowther, 
    2017 UT 24
    , ¶ 47.
    ¶45     However, our supreme court has also recently rejected
    the idea “that the Shickles factors, taken individually, have no
    place in a rule 403 analysis. It may very well be appropriate, for
    example, for a district court to consider the similarities between
    the crimes in assessing probative value.” Cuttler, 
    2015 UT 95
    ,
    ¶ 19. Thus, “we focus our analysis on the text of rule 403 and
    analyze only those Shickles factors that are relevant to the
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    State v. Van Oostendorp
    circumstances of [the present] case.” State v. Reece, 
    2015 UT 45
    ,
    ¶ 69, 
    349 P.3d 712
    .
    ¶46 But I see no legal relevance in whether a factor is found
    on the Shickles list. All that matters is that it aids the court in
    applying the law, i.e., the text of rule 403. One or more of the
    Shickles factors may sometimes help, but the same can be said of
    non-Shickles factors, such as “the potential of the evidence to
    impress the jury in some irrational, but nevertheless indelible
    way,” Shuffield v. State, 
    189 S.W.3d 782
    , 787 (Tex. Crim. App.
    2006) (citation and internal quotation marks omitted), and “the
    extent to which admission of evidence will require trial within
    trial,” State v. Rollins, 
    760 S.E.2d 529
    , 551 (W. Va. 2014) (citation
    and internal quotation marks omitted). And of course our
    supreme court has proscribed one Shickles factor, “the degree to
    which the evidence probably will rouse the jury to
    overmastering hostility.” See State v. Shickles, 
    760 P.2d 291
    , 296
    (Utah 1988), abrogated by Cuttler, 
    2015 UT 95
    , ¶ 20 (holding that
    “it is inappropriate for a court to consider the overmastering
    hostility factor in a rule 403 analysis”). In short, whether a factor
    is useful to a court in conducting a 403 balancing has everything
    to do with relevance under the circumstances and nothing to do
    with appearing on the Shickles list.
    ¶47 I believe this is our supreme court’s approach. But it
    appears to me that this nuanced approach may not be sufficient
    to drive a stake into the heart of Shickles. Perhaps the time has
    come to hold that any reference to the Shickles factors constitutes
    reversible error.
    ¶48 I also add this observation: when a relationship marked
    by bullying, threats, or violence culminates in an accusation of
    sexual assault answered by a claim of consent, evidence of that
    history of abuse will almost always satisfy rules 402, 403, and
    404(b). It will almost always be highly probative and almost
    never be unfairly prejudicial. If our rules of evidence are to reflect
    the real world, they must recognize that the question of consent
    20150135-CA                      21                
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    State v. Van Oostendorp
    must be viewed through the lens of the couple’s entire
    relationship. And just as a history of consensual sex is relevant to
    whether a sexual partner consented on a particular occasion, see
    Utah R. Evid. 412(b)(2), so also is a history of abuse, see State v.
    Diak, No. 98-2004-CR, 
    1999 WL 19306
    , at *5 (Wis. Ct. App. Jan.
    20, 1999) (holding the couple’s history of abuse relevant to
    whether the victim consented to sex). A jury could reasonably
    conclude that a history of violence elevates an otherwise
    noncoercive demand for sex to the level of a “threat[] to retaliate
    in the immediate future against the victim” if she refuses to
    comply. See 
    Utah Code Ann. § 76-5-406
    (4)(a)(i) (LexisNexis
    Supp. 2016).
    ¶49 Constitutional law provides a useful analogue. “When a
    prosecutor seeks to rely upon consent to justify the lawfulness of
    a search, he has the burden of proving that the consent was, in
    fact, freely and voluntarily given.” Bumper v. North Carolina, 
    391 U.S. 543
    , 548 (1968). Otherwise stated, “Is the confession the
    product of an essentially free and unconstrained choice by its
    maker?” Schneckloth v. Bustamonte, 
    412 U.S. 218
    , 225 (1973). This
    question is “to be determined from the totality of all the
    circumstances.” 
    Id. at 223
    . I see no reason why a less robust
    version of consent should apply in the context of sex crimes.5
    5. I am of course not suggesting that a criminal defendant bears
    any burden of proving consent in a criminal prosecution; I am
    suggesting only that the “consent”—whose absence the
    prosecutor must prove beyond a reasonable doubt—means
    consent that was the product of a free and unconstrained choice
    under a totality of the circumstances, including the couple’s
    history.
    20150135-CA                     22                
    2017 UT App 85