United States v. Sarah Cox ( 2020 )


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  •                      FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    UNITED STATES OF AMERICA,                         No. 18-10416
    Plaintiff-Appellee,
    D.C. No.
    v.                           3:16-cr-08202-
    ROS-1
    SARAH MELISA COX, AKA Sarah
    Cox, AKA Sarah Cunningham,
    Defendant-Appellant.                    OPINION
    Appeal from the United States District Court
    for the District of Arizona
    Roslyn O. Silver, District Judge, Presiding
    Argued and Submitted May 11, 2020
    San Francisco, California
    Filed June 26, 2020
    Before: Ryan D. Nelson and Daniel A. Bress, Circuit
    Judges, and James S. Gwin, * District Judge.
    Opinion by Judge Gwin
    *
    The Honorable James S. Gwin, United States District Judge for the
    Northern District of Ohio, sitting by designation.
    2                    UNITED STATES V. COX
    SUMMARY **
    Criminal Law
    The panel affirmed convictions on child pornography-
    related charges, including one count of making a notice
    offering child pornography in violation of 18 U.S.C.
    § 2251(d)(1)(A).
    The panel held that one-to-one communications can
    satisfy the “notice” requirement in § 2251(d)(1), and that a
    rational fact-finder could find that the defendant made a
    notice offering child pornography when she sent a one-to-
    one electronic message linking to a Dropbox account that
    contained child pornography. The panel also held that the
    district court did not abuse its discretion when it admitted
    under Fed. R. Evid. 404(b) an uncharged Kik messenger
    exchange to prove the defendant’s identity and absence of
    mistake.
    COUNSEL
    David Eisenberg (argued), Phoenix, Arizona, for Defendant-
    Appellant.
    Krissa M. Lanham (argued), Deputy Appellate Chief; Robert
    I. Brooks, Assistant United States Attorney; Michael Bailey,
    United States Attorney; United States Attorney’s Office,
    Phoenix, Arizona; for Plaintiff-Appellee.
    **
    This summary constitutes no part of the opinion of the court. It
    has been prepared by court staff for the convenience of the reader.
    UNITED STATES V. COX                          3
    OPINION
    GWIN, District Judge:
    Sarah Cox used an online instant messaging platform to
    exchange child pornography with one other individual. A
    jury convicted Cox of five child pornography-related
    charges, including one count of making a notice offering
    child pornography in violation of 18 U.S.C.
    § 2251(d)(1)(A).
    With this appeal, Cox argues that a one-to-one
    communication cannot support a conviction for “mak[ing]
    . . . [a] notice . . . offering” child pornography under
    § 2251(d)(1)(A). Cox also argues that the district court erred
    when it admitted evidence of uncharged conduct.
    We disagree with Cox’s reading of the statute, and we
    conclude that the district court did not err in admitting the
    uncharged conduct evidence. We affirm.
    I. BACKGROUND
    A. Case Overview
    In late August 2015, Richard Hennis and a person using
    the moniker “JadeJeckel” communicated on Kik Messenger 1
    and discussed child pornography and child sex. In later
    November 2015 to January 2016 Kik messages, JadeJeckel
    and Hennis exchanged child pornography. At trial, the
    Government argued that Defendant Sarah Cox used the
    JadeJeckel messaging account. Cox denied that she sent or
    1
    Kik Messenger is an instant messaging application available for
    smartphones and tablets. It functions similarly to a standard text
    messaging service.
    4                 UNITED STATES V. COX
    received the messages.     The jury convicted Cox on all
    counts.
    Although the indictment only alleged criminal conduct
    in December 2015, the Government offered the August 2015
    Kik conversation to prove that Defendant Cox used the
    JadeJeckel account. Appellant Cox says this was prejudicial
    error.
    Cox also argues on appeal that insufficient evidence
    supported her conviction of making a notice offering child
    pornography when the notice was in a person-to-person text
    message. She claims the statute could only be violated
    through a wider distributed notice.
    B. The Kik Messenger Conversation
    On August 24, 2015, Richard Hennis started a Kik
    Messenger conversation with user “JadeJeckel.” The
    Government later claimed Sarah Cox was the JadeJeckel
    user.
    A few hours into the August 2015 Kik exchange,
    Defendant Cox steered the conversation to child sex. In this
    text exchange, Defendant Cox and Hennis discussed child
    sex, whether to murder a mother to take her child, and their
    desire to kidnap, enslave, and rape children. After several
    days of these August 2015 messages, Cox ended the
    conversation.
    On November 22, 2015, Defendant Cox and Hennis
    reinitiated their Kik conversation. Cox and Hennis quickly
    resumed discussing their child sexual interest. Minutes after
    reconnecting in November 2015, Cox asked Hennis to send
    her his “nastiest favorite” “naughty” videos. In response,
    Hennis sent Cox eleven separate child pornography files.
    UNITED STATES V. COX                  5
    For the next several weeks, Defendant Cox and Hennis
    continued to discuss their child sexual interest. Central to
    the charge for making a notice offering child pornography,
    on December 4, 2015, Defendant Cox used Kik to send
    Hennis two separate Dropbox links, calling them “[g]oodies
    for daddy.” One of the Dropbox accounts contained child
    pornography videos. On December 23, 2015, Hennis sent
    Cox three child pornography images. Hennis and Cox ended
    their text conversation on January 18, 2016.
    C. Investigation and Arrest
    In early 2016, law enforcement received a tip that
    Richard Hennis had child pornography on his phone. Law
    enforcement arrested Hennis, seized his phone, and
    extracted the Hennis-Cox Kik Messenger conversations
    described above. Investigation into the JadeJeckel identity
    showed substantial evidence linking Sarah Cox to the
    JadeJeckel account, including IP addresses, an email from
    jadejeckel@live.com containing Cox’s resume; Cox’s
    driver’s license listing the same birthday as JadeJeckel; non-
    public photographs of Cox sent by JadeJeckel; and Cox’s
    social media accounts using the JadeJeckel moniker.
    The Government arrested Cox and charged her with five
    counts arising out of her Kik Messenger conversation with
    Hennis: three counts of receiving child pornography, 2 one
    count of making a notice offering child pornography, 3 and
    one count of distributing child pornography. 4
    2
    18 U.S.C. §§ 2252A(a)(2)(A), 2252A(b), 2256.
    3
    18 U.S.C. §§ 2251(d)(1)(A), 2256.
    4
    18 U.S.C. §§ 2252A(a)(2)(A), 2252A(b), 2256.
    6                 UNITED STATES V. COX
    D. Trial and Appeal
    The case went to trial. The Government presented
    substantial evidence that Sarah Cox was the JadeJeckel Kik
    user. Cox did not contest that JadeJeckel transmitted and
    received child pornography. Instead, Cox argued that she
    was not JadeJeckel. Cox called one witness, a computer
    forensics expert, who testified that hackers can frame people
    by creating fake internet profiles. The expert witness also
    testified that Cox’s surrendered electronic devices did not
    have Kik conversation evidence. The jury convicted Sarah
    Cox on all counts.
    On October 24, 2018, Cox appealed. On appeal, Cox
    concedes that the Government showed sufficient evidence
    that she was JadeJeckel. Instead she argues that the evidence
    was insufficient to support a conviction for making a notice
    offering child pornography and that the district court erred
    in admitting certain evidence warranting a new trial.
    II. DISCUSSION
    A. One-to-One Communications Can Satisfy the
    18 U.S.C. § 2251(d)(1) “Notice” Requirement, and
    Sufficient Evidence Supported Cox’s § 2251(d)(1)
    Conviction.
    Cox challenges her conviction for violating 18 U.S.C.
    § 2251(d)(1)(A), that provides:
    (d)(1) Any person who . . . knowingly
    makes, prints, or publishes, or causes to be
    made, printed, or published, any notice or
    advertisement seeking or offering—
    UNITED STATES V. COX                           7
    (A) to receive, exchange, buy, produce,
    display, distribute, or reproduce, any
    visual depiction, if the production of such
    visual depiction involves the use of a
    minor engaging in sexually explicit
    conduct and such visual depiction is of
    such conduct[]
    ...
    shall be punished as provided under
    subsection (e). 5
    To prove this violation, the Government presented
    evidence that Cox sent Hennis a Kik message with a link to
    a Dropbox account that contained child pornography. Cox’s
    message with the link said, “[g]oodies for daddy.”
    On appeal, Cox argues that a one-to-one communication
    cannot be a “notice or advertisement” of child pornography
    under 18 U.S.C. § 2251(d)(1). She argues that the statute
    requires “something more than a one-on-one exchange.”
    Because her communication ran only to Hennis, she argues
    there was insufficient evidence for her § 2251(d)(1)
    conviction.
    “We review challenges to the sufficiency of evidence,
    including questions of statutory interpretation, de novo.” 6
    “There is sufficient evidence to support a conviction if,
    viewing the evidence in the light most favorable to the
    5
    18 U.S.C. § 2251(d)(1)(A).
    6
    United States v. Aldana, 
    878 F.3d 877
    , 880 (9th Cir. 2017).
    8                      UNITED STATES V. COX
    prosecution, any rational trier of fact could have found the
    essential elements of the crime beyond a reasonable doubt.” 7
    As a preliminary matter, we agree with the Government
    that we only need consider whether the trial evidence
    supports a conviction under the statute’s “notice” prong. If
    the Government proves the “notice” prong, the Government
    does not need to prove the “advertisement” prong.
    Section 2251(d)(1) is disjunctive (i.e., the statute
    prohibits “notice or advertisement”). 8 The Government
    prosecuted Cox under the “notice” prong. Therefore, we
    consider only whether any rational juror could find that
    evidence of a one-to-one communication could be a “notice”
    under 18 U.S.C. § 2251(d)(1).
    1. Statutory Construction
    Before we consider the sufficiency of the evidence, we
    first examine the statute. Whether 18 U.S.C. § 2251(d)(1)’s
    “notice” provision applies to one-to-one messages is an issue
    of first impression in this circuit.
    In statutory interpretation, “our starting point is the plain
    language of the statute.” 9 “[W]e examine not only the
    specific provision at issue, but also the structure of the
    7
    Id. (quoting United
    States v. Roach, 
    792 F.3d 1142
    , 1144 (9th Cir.
    2015)).
    8
    18 U.S.C. § 2251(d)(1) (emphasis added).
    9
    United States v. Williams, 
    659 F.3d 1223
    , 1225 (9th Cir. 2011).
    UNITED STATES V. COX                             9
    statute as a whole, including its object and policy.” 10 “If the
    plain meaning of the statute is unambiguous, that meaning is
    controlling . . . .” 11
    We first look to the key word in our review: “notice.” 12
    The statute does not define notice, so we construe the word
    pursuant to its ordinary meaning. 13 To determine ordinary
    meaning, we consider dictionary definitions. 14
    Most standard English-language dictionary notice
    definitions do not define notice in relation to audience size.
    For example, Merriam-Webster.com gives the following
    definitions of “notice”:
    1   a   (1): warning or intimation of something :
    announcement
    (2): the announcement of a party’s intention
    to quit an agreement or relation at a specified
    time
    10
    Id. (quoting Children’s
    Hosp. & Health Ctr. v. Belshe, 
    188 F.3d 1090
    , 1096 (9th Cir. 1999)).
    11
    Id. 12 See
    United States v. Franklin, 
    785 F.3d 1365
    , 1367 (10th Cir.
    2015) (considering whether 18 U.S.C. § 2251(d)(1) applies to a closed
    network).
    13
    See Sebelius v. Cloer, 
    569 U.S. 369
    , 376 (2013); see Animal Legal
    Def. Fund v. United States Dep’t of Agric., 
    933 F.3d 1088
    , 1093 (9th Cir.
    2019) (“When a statute does not define a term, we typically give the
    phrase its ordinary meaning.” (quoting FCC v. AT&T Inc., 
    562 U.S. 397
    ,
    403 (2011))).
    14
    See Wisconsin Cent. Ltd. v. United States, 
    138 S. Ct. 2067
    , 2070–
    71 (2018); United States v. Ezeta, 
    752 F.3d 1182
    , 1185 (9th Cir. 2014).
    10                    UNITED STATES V. COX
    (3): the condition of being warned or
    notified—usually used in the phrase on
    notice
    b: information, intelligence
    2    a: attention, heed
    b: polite or favorable attention : civility
    3:      a written or printed announcement
    4:      a short critical account or review 15
    None of these definitions implicate audience size.
    Relying on similar dictionary definitions, the Seventh
    and Tenth Circuits have reached similar conclusions when
    reviewing whether 18 U.S.C. § 2251(d)(1) prohibits
    communications to groups with limited membership. 16 In
    view of these dictionary definitions, the ordinary meaning of
    “notice” does not exclude one-to-one communications.
    We nonetheless continue our inquiry and consider the
    word modifying “notice.” Section 2251(d)(1) proscribes
    15
    Notice,     Merriam-Webster,          https://www.merriam-
    webster.com/dictionary/notice (last visited May 20, 2020) (capitalization
    altered and examples omitted).
    16
    United States v. Gries, 
    877 F.3d 255
    , 260 (7th Cir. 2017)
    (reviewing two “notice” definitions and opining that “[i]n everyday
    parlance, the term is not limited to warnings or notifications
    disseminated to the general public”); 
    Franklin, 785 F.3d at 1368
    (reviewing 18 “notice” definitions and concluding that none have “a
    public component”) (citing Notice, Webster’s Third New International
    Dictionary 1544 (ed. Philip Babcock Gove 1993)).
    UNITED STATES V. COX                           11
    “any notice . . . seeking or offering” child pornography. 17
    The Supreme Court has observed that, “[r]ead naturally, the
    word ‘any’ has an expansive meaning, that is, ‘one or some
    indiscriminately of whatever kind.’” 18 Thus, Congress’s use
    of “any” suggests Congress intended “notice” to cover any
    communication that could reasonably fall within that term. 19
    Notably, the statute does not limit notices to those that are
    widely disseminated to the public at large or a large group of
    people.
    We also consider the verbs that precede “any notice.”
    Section 2251(d)(1) prohibits “[a]ny person [from] . . .
    mak[ing], print[ing], or publish[ing] . . . any notice.” 20 A
    review of these verbs’ dictionary definitions suggests that
    “publish” has a public dissemination component. 21 We can
    17
    18 U.S.C. § 2251(d)(1) (emphasis added).
    18
    Ali v. Fed. Bureau of Prisons, 
    552 U.S. 214
    , 219 (2008) (alteration
    in original) (quoting United States v. Gonzales, 
    520 U.S. 1
    , 5 (1997));
    accord Olympic Forest Coal. v. Coast Seafoods Co., 
    884 F.3d 901
    , 906
    (9th Cir. 2018) (collecting cases for the proposition that the “any” is
    “broad and all-encompassing”); Do Sung Uhm v. Humana, Inc., 
    620 F.3d 1134
    , 1153 (9th Cir. 2010) (“The word ‘any’ is generally used in the
    sense of ‘all’ or ‘every’ and its meaning is most comprehensive.”)
    (quoting Fleck v. KDI Sylvan Pools, Inc., 
    981 F.2d 107
    , 115 (3d Cir.
    1992)).
    19
    See Harrison v. PPG Indus., Inc., 
    446 U.S. 578
    , 588–89 (1980)
    (construing Section 307(b)(1) of the Clean Air Act expansively in light
    of a 1977 amendment that added the word “any”).
    20
    18 U.S.C. § 2251(d)(1) (emphasis added).
    21
    Merriam-Webster includes two representative definitions of
    “publish”: “to make public announcement of” and “to disseminate to
    the public.”     Publish, Merriam-Webster, https://www.merriam-
    12                      UNITED STATES V. COX
    assume that “print” often could refer, and even more
    typically may refer, to a more public dissemination. But as
    we have explained, the phrase “make[] . . . any notice” is
    quite clearly not limited to public dissemination and can
    include one-to-one communications that are fairly
    characterized as “notices.” At least in the context of this
    case, which involves a defendant who is offering child
    pornography, we do not think the statute’s inclusion of the
    words “publish” and “print” requires us to adopt an
    unnaturally narrow interpretation of the phrase “make[] . . .
    any notice.” Once again, if Congress had intended to limit
    the statute in the way Cox suggests, we think it would have
    chosen different language than it did.
    At this stage of the inquiry, in view of the ordinary
    meaning of the statutory terms and § 2251(d)(1)’s
    proscription of “any notice,” the statute strongly suggests
    that “make[] . . . any notice” can reach one-to-one
    communications. 22
    We also consider “the structure of the statute as a whole,
    including its object and policy,” 23 and “whether the
    proposed interpretation would frustrate or advance that
    purpose.” 24   With its child pornography legislation,
    Congress enacted a “comprehensive” regulatory scheme that
    webster.com/dictionary/publish (definitions 1b and 2a, respectively)
    (last visited June 6, 2020).
    22
    18 U.S.C. § 2251(d)(1) (emphasis added).
    23
    
    Williams, 659 F.3d at 1225
    (quoting Children’s Hosp. & Health
    
    Ctr., 188 F.3d at 1096
    ).
    24
    See United States v. Mohrbacher, 
    182 F.3d 1041
    , 1049 (9th Cir.
    1999).
    UNITED STATES V. COX                     13
    “seeks to regulate (more accurately, exterminate) the entire
    child pornography market.” 25 Construing “notice” to
    include one-to-one communications furthers this broad
    statutory objective.
    In summary, based upon the statute’s plain meaning, we
    hold that one-to-one communications can satisfy the
    “notice” requirement under 18 U.S.C. § 2251(d)(1).
    2. Sufficiency of the Evidence
    Applying our construction of § 2251(d)(1) to the instant
    case, we decide that a rational fact-finder could find that Cox
    made a notice offering child pornography when she sent a
    one-to-one electronic message with a Dropbox link and
    informed Hennis that it contained child pornography. As
    discussed above, the critical Kik messages conveyed
    Dropbox links and the message “[g]oodies for daddy.”
    Taken together and when viewed in the context of the overall
    conversation between Cox and Hennis, these Kik messages
    reflected an offer to provide child pornography and means
    for how to gain access to it. This is sufficient to constitute
    “mak[ing] . . . any notice . . . offering . . . to . . . exchange,
    . . . display, distribute, or reproduce” child pornography.” 26
    The district court therefore did not err in denying Cox’s Rule
    29 motion for a directed verdict as to the § 2251(d)(1)(A)
    count.
    25
    United States v. McCalla, 
    545 F.3d 750
    , 755 (9th Cir. 2008);
    accord United States v. Maxwell, 
    446 F.3d 1210
    , 1217 n.7 (11th Cir.
    2006).
    26
    18 U.S.C. § 2251(d)(1).
    14                          UNITED STATES V. COX
    3. United States v. Caniff
    Considering our ruling, we do not reach Cox’s argument
    that § 2251(d)(1) notice is unconstitutionally vague (or
    whether this argument has been waived). We nonetheless
    observe that the Eleventh Circuit case Cox relies upon for
    her associated rule of lenity argument—United States v.
    Caniff 27—is distinguishable.
    Caniff is the only other case in which a court of appeals
    directly considered whether § 2251(d)(1) notice applies to
    one-to-one communications. 28 In Caniff, the 32-year-old
    defendant engaged in a text-message conversation with an
    FBI agent who posed as a 13-year-old girl. 29 In the text
    conversation, the defendant asked the purported 13-year-old
    girl for sexually explicit pictures of herself. 30 For this
    conduct, the defendant was charged and convicted of
    “mak[ing]” a “notice” “seeking” to “receive” child
    pornography in violation of § 2251(d)(1)(A). 31 (In contrast,
    Defendant Cox was charged with “mak[ing]” a “notice”
    “offering” to “display, distribute, or reproduce” child
    pornography. 32)
    27
    
    955 F.3d 1183
    (11th Cir. 2020) (per curiam).
    28
    See
    id. at 1185
    .
    
         29
    Id. at 1185–86.
         30
    Id. at 1186.
         31
    Id. at 1186–87
    (quoting 18 U.S.C. § 2251(d)(1)(A) (emphasis
    added)).
    32
    See 18 U.S.C. § 2251(d)(1)(A).
    UNITED STATES V. COX                           15
    On appeal, Caniff argued that 18 U.S.C. § 2251(d)(1)
    was ambiguous when applied to this conduct. 33 The
    Eleventh Circuit agreed. After applying the tools of
    statutory interpretation, the Eleventh Circuit had “serious
    doubts” about the statute’s applicability to Caniff’s
    conduct. 34 The court applied the rule of lenity in Caniff’s
    favor and reversed his conviction under § 2251(d)(1)(A). 35
    The Eleventh Circuit’s holding was based on a perceived
    ill fit between § 2251(d)(1) and defendant Caniff’s conduct.
    Caniff had asked for pictures of the supposed 13-year-old
    girl, and he was therefore convicted of “mak[ing]” a “notice
    . . . seeking” to “receive” child pornography. 36 The Eleventh
    Circuit’s decision seems to turn on its view that “mak[ing]
    . . . any notice . . . seeking . . . to receive” is an unusual
    phrasing that created “serious doubts” about the applicability
    of § 2251(d)(1) to Caniff’s conduct. 37
    We do not have the same doubts about the applicability
    of § 2251(d)(1) to Cox’s conduct. Cox sent Hennis a link to
    child pornography. The jury found Cox guilty of “mak[ing]”
    a “notice . . . offering” to “display, distribute, or reproduce”
    33
    
    Caniff, 955 F.3d at 1187
    .
    34
    Id. at 1191–92;
    see also
    id. at 1185
    (“Caniff’s private, person-to-
    person text messages asking an individual he thought was a minor to
    send him sexually explicit pictures of herself cannot support a conviction
    for ‘mak[ing]’ a ‘notice’ to receive child pornography in violation of
    18 U.S.C. § 2251(d)(1).”).
    35
    Id. at 1193.
        36
    18 U.S.C. § 2251(d)(1)(A) (emphasis added); 
    Caniff, 955 F.3d at 1185
    –86.
    37
    See 
    Caniff, 95 F.3d at 1189
    –91.
    16                      UNITED STATES V. COX
    child pornography. 38 The § 2251(d)(1)(A) application to
    Cox’s conduct does not warrant application of the rule of
    lenity.
    We have no occasion to decide whether all one-to-one
    communications will be a § 2251(d)(1)(A) notice violation.
    Today, we hold only that one-to-one exchanges can satisfy
    the legal definition of “notice” under § 2251(d)(1), and that
    the evidence in Cox’s case, viewed in the light most
    favorable to the prosecution, sufficiently supported her
    conviction.
    B. The District Court Did Not Err by Admitting the
    August 2015 Hennis-Cox Kik Messenger Exchange.
    Cox and Hennis’s Kik Messenger conversation occurred
    in two distinct times: (1) from August 24 to 27, 2015, and
    (2) from November 22, 2015 to January 18, 2016. The
    indictment charged violations of child pornography laws
    only in the latter period.
    Before trial, Cox sought to exclude evidence of the initial
    August 2015 exchange. The district court denied Cox’s
    motion. The district court reasoned that while the August
    2015 messages were not admissible as direct evidence of
    Cox’s December 2015 crimes, the messages were admissible
    under Federal Rule of Evidence 404(b) to prove Cox’s
    identity as the JadeJeckel user and to prove an absence of
    mistake. The district court also found the August 2015
    communications were not unduly prejudicial under Federal
    Rule of Evidence 403.
    38
    18 U.S.C. § 2251(d)(1)(A) (emphasis added).
    UNITED STATES V. COX                         17
    With this appeal, Cox argues that the district court erred
    in admitting the August 2015 messages under Rule 404(b)
    and 403.
    1. Rule 404(b)
    Rule 404(b)(1) says that “[e]vidence of a crime, wrong,
    or other act is not admissible to prove a person’s character in
    order to show that on a particular occasion the person acted
    in accordance with the character.” Nonetheless, the Rule
    provides that such other-act “evidence may be admissible for
    another purpose, such as proving motive, opportunity, intent,
    preparation, plan, knowledge, identity, absence of mistake,
    or lack of accident.” 39
    The Ninth Circuit uses a four-part test to determine the
    admissibility of evidence under Rule 404(b):
    Such evidence may be admitted if: (1) the
    evidence tends to prove a material point;
    (2) the other act is not too remote in time;
    (3) the evidence is sufficient to support a
    finding that defendant committed the
    other act; and (4) (in certain cases) the act
    is similar to the offense charged. 40
    “The government ‘has the burden of proving that the
    evidence meets all of the above requirements.’” 41 This court
    39
    Fed. R. Evid. 404(b)(2).
    40
    United States v. Bailey, 
    696 F.3d 794
    , 799 (9th Cir. 2012) (quoting
    United States v. Romero, 
    282 F.3d 683
    , 688 (9th Cir. 2002)).
    41
    Id. (quoting United
    States v. Arambula-Ruiz, 
    987 F.2d 599
    , 602
    (9th Cir. 1993)).
    18                     UNITED STATES V. COX
    reviews a district court’s admission of Rule 404(b) evidence
    for an abuse of discretion. 42
    Here, the district court did not abuse its discretion when
    it admitted the August 2015 messages under Rule 404(b).
    As to the first requirement, the August 2015 Hennis-Cox
    exchange tends to prove two material issues—Cox’s use of
    the JadeJeckel account (identity) and the absence of mistake.
    The August 2015 messages show Cox’s strong interest in
    child pornography, negating the possibility that the later
    child pornography transmissions were mistakes. The
    August messages also included substantial evidence
    identifying Defendant Sarah Cox as using the JadeJeckel
    moniker. For example, in the August 2015 exchanges,
    JadeJeckel sent a non-public nude selfie of Cox and
    described personal information that applied to Cox.
    As to the timeliness requirement, the August 2015
    exchange occurred approximately three to four months
    before the charged conduct. 43
    With regards to the need to show that Cox committed the
    earlier acts, enough evidence suggested that Cox was the
    August 2015 JadeJeckel user. As described, there was
    considerable evidence identifying Cox as JadeJeckel. 44
    42
    United States v. Carpenter, 
    923 F.3d 1172
    , 1180–81 (9th Cir.
    2019).
    43
    See United States v. Lozano, 
    623 F.3d 1055
    , 1059-60 (9th Cir.
    2010) (per curiam) (concluding that three years was not too remote).
    44
    See 
    Romero, 282 F.3d at 688
    (observing that the third prong of
    our Rule 404(b) test is a “low threshold”).
    UNITED STATES V. COX                           19
    In consideration of the final requirement, the August
    2015 messages were similar to the November 2015 to
    January 2016 conversations, which included the criminal
    acts charged. Both sets of messages involved the same
    participants and their shared interest in child pornography.
    The Government satisfied its Rule 404(b) burden. The
    district court did not abuse its discretion in admitting the
    August 2015 conversation under Rule 404(b) to prove Cox’s
    identity and absence of mistake.
    2. Rule 403
    “Even if the proffered evidence satisfies these [four Rule
    404(b)] requirements, the district court should decline to
    admit it [under Rule 403] if its probative value is
    substantially outweighed by the danger of unfair
    prejudice.” 45 We review the district court’s admission of
    evidence under Rule 403 for an abuse of discretion. 46
    We are satisfied that the district court did not abuse its
    discretion under Rule 403 when it admitted the August 2015
    Kik conversation.
    The August 2015 exchange’s probative value was
    substantial. The trial largely concerned only one contested
    issue—the identity of JadeJeckel. The August exchange
    included significant evidence linking Cox to the JadeJeckel
    account.
    45
    United States v. Banks, 
    514 F.3d 959
    , 976 (9th Cir. 2008) (internal
    quotation marks omitted).
    46
    United States v. Flores-Blanco, 
    623 F.3d 912
    , 919 n.3 (9th Cir.
    2010).
    20                   UNITED STATES V. COX
    As to the danger of unfair prejudice, the August 2015
    messages included prejudicial evidence. In the August 2015
    messages, Cox and Hennis discussed murdering a mother to
    steal a child and their desire to kidnap, enslave, and rape
    children. But other-act evidence in sex-crimes cases is often
    emotionally charged and inflammatory, and this does not
    control the Rule 403 analysis. 47
    Other-act evidence should be considered in the context
    of each case. 48 Here, the August 2015 messages were
    prejudicial but no more prejudicial than the November 2015
    to January 2016 messages. The November 2015 to January
    2016 messages included actual child rape and child sexual
    assault images and videos. In this context, the August 2015
    messages were not unduly prejudicial.
    The district court recognized that the August 2015
    messages were potentially prejudicial but found that their
    probative value justified admission. “The district court is to
    be given ‘wide latitude’ when it balances the prejudicial
    47
    See United States v. LeMay, 
    260 F.3d 1018
    , 1027–30 (9th Cir.
    2001) (concluding that evidence of defendants’ prior acts of child
    molestation, admitted under Federal Rule of Evidence 414, did not need
    to be excluded under Rule 403).
    48
    United States v. Jayavarman, 
    871 F.3d 1050
    , 1064 (9th Cir. 2017)
    (“That [probative] value was not substantially outweighed by any risk of
    unfair prejudice that might have arisen from the evidence, especially in
    the context of other evidence adduced at trial.”); see also 
    LeMay, 260 F.3d at 1031
    (“[E]vidence of a defendant’s prior sex crimes will
    always present the possibility of extreme prejudice, and that district
    courts must accordingly conduct the Rule 403 balancing inquiry in a
    careful, conscientious manner that allows for meaningful appellate
    review of their decisions.”).
    UNITED STATES V. COX                         21
    effect of proffered evidence against its probative value.” 49
    Here, the district court did not abuse its discretion in
    admitting the evidence.
    III. CONCLUSION
    Based on the plain statutory language, we hold that one-
    to-one communications can satisfy the legal definition of
    “notice” under 18 U.S.C. § 2251(d)(1). Applying this
    construction to the instant case, we conclude that a rational
    trier of fact could find that Cox made a notice offering child
    pornography when she sent a one-to-one electronic message
    linking to a Dropbox account that contained child
    pornography. We also hold that the district court did not
    abuse its discretion when it admitted the uncharged August
    2015 messages under Federal Rule of Evidence 404(b).
    The judgment of conviction is AFFIRMED.
    49
    United States v. Higuera-Llamos, 
    574 F.3d 1206
    , 1209 (9th Cir.
    2009) (quoting United States v. Spencer, 
    1 F.3d 742
    , 744 (9th Cir.
    1993)).