United States v. Smalls , 752 F.3d 1227 ( 2014 )


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  •                                                                     FILED
    United States Court of Appeals
    Tenth Circuit
    April 28, 2014
    PUBLISH                 Elisabeth A. Shumaker
    Clerk of Court
    UNITED STATES COURT OF APPEALS
    TENTH CIRCUIT
    UNITED STATES OF AMERICA,
    Plaintiff-Appellee,
    v.                                                   No. 12-2145
    PAUL OTHELLO SMALLS,
    Defendant-Appellant.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF NEW MEXICO
    (D.C. NO. 2:06-CR-02403-RB-1)
    Amy Sirignano, Albuquerque, New Mexico, for Appellant.*
    Richard C. Williams, Assistant United States Attorney (Kenneth J. Gonzales,
    United States Attorney, with him on the brief), Las Cruces, New Mexico, for
    Appellee.
    Before TYMKOVICH, BALDOCK, and PHILLIPS, Circuit Judges.
    TYMKOVICH, Circuit Judge.
    ______________
    * The Court28 U.S.C. § 1291
    , we AFFIRM. We conclude
    the district court did not abuse its discretion or plainly err in admitting the
    challenged pieces of evidence; the government did not commit prosecutorial
    misconduct by introducing co-conspirator testimony or vouching for the
    witnesses; the court did not abuse its discretion denying Smalls’s proposed jury
    -2-
    instructions because the instructions adequately conveyed the law and Smalls’s
    theory of the case; and there was sufficient evidence to sustain the convictions.
    Because the district court did not commit error, a cumulative error analysis is
    unwarranted.
    I. Background
    At the time of Gantz’s murder, Smalls was being held in pre-trial custody at
    the Doña Ana County Detention Center in New Mexico, where he was formerly a
    corrections officer. He was awaiting trial on state charges for an August 2004
    assault on his then-wife.
    Smalls shared a medical unit cell with three other prisoners. One cellmate,
    Gantz, had been arrested in May 2003 as part of an investigation into
    methamphetamine trafficking in Roswell, New Mexico. After being charged in
    federal court, he decided to cooperate with law enforcement. His plea agreement
    stipulated that he would testify as a witness for the government in the future.
    Based in part on the information Gantz provided, law enforcement approached,
    and eventually indicted, an alleged drug trafficker. Another cellmate was Glenn
    Dell Cook, who had been placed in the cell after fighting with his former
    cellmate. Cook was in pre-trial custody on charges of methamphetamine
    trafficking. The fourth cellmate was Walter Melgar-Diaz (Melgar), who was in
    pre-trial custody for illegal reentry into the United States and had moved into the
    -3-
    cell only a week before the murder. Although Melgar spoke only Spanish, he was
    nevertheless able to communicate to some extent with his cellmates.
    Before Smalls’s murder trial, Cook and Melgar made agreements with
    federal prosecutors and testified against Smalls. According to them, Smalls was
    the ringleader of the plot to kill Gantz. Melgar testified that Smalls had told him
    that Gantz was a “rat” and had to be killed. He also described how Smalls
    pressured him into committing the murder by explaining that Gantz had helped
    capture four “Michoacanos,” who Smalls referred to as Melgar’s “people.” R.,
    Vol. V at 648. Melgar further testified that Smalls said that no one would
    suspect anything because Gantz had asthma, and the death would look like a
    result of natural causes.
    Cook testified that Smalls told him about Gantz’s cooperation with
    authorities, that certain people wanted Gantz dead, and there was a hit on Gantz.
    Cook did not like Gantz because he was a “snitch” and bragged about getting a
    reduced sentence. Cook also testified that he did not know they were going to kill
    Gantz—he thought they were just going to hurt him and that Melgar and Smalls
    planned the murder.
    According to Melgar, at 1:30 a.m. on December 30, 2004, Smalls woke up
    Melgar, and Cook handed Melgar a plastic bag. Then, Smalls instructed Melgar
    to put the bag over Gantz’s face, which he did using closed fists. Smalls held
    down Gantz’s legs and Cook restrained Gantz’s chest and arms. After the murder,
    -4-
    according to Melgar, Smalls instructed the other two not to talk about the murder
    because “they” would think Gantz suffocated because of the asthma. Cook’s
    description of the murder was almost identical, and he explained that the murder
    took about twenty seconds and there were only eight seconds of silent struggle.
    Smalls testified that he slept through the murder.
    The next morning, Gantz’s body was found, but there were no apparent
    signs of foul play. On December 31, an autopsy revealed a hemorrhage in three
    layers of the neck, indicating that Gantz had died by carotid strangulation, not by
    suffocation. There were also no defensive wounds found on the body, which was
    consistent with being restrained. According to expert testimony offered by the
    government at trial, the assailant could have caused the strangulation by holding a
    plastic bag with two fists and wrapping it around the bottom of the jaw.
    The sheriff’s office initially investigated the murder, and federal
    investigators joined in April 2005. That summer, Cook told a fellow inmate about
    the murder. Unbeknownst to Cook, the inmate was cooperating with investigators
    and wearing a wire. Meanwhile, Melgar suffered severe mental turmoil after the
    murder. He claimed to have seen Gantz’s ghost and began to cut himself. He was
    transferred to a treatment facility in Missouri and, upon his return, received
    medication and was declared competent by the court. In February 2006, Melgar
    met with his attorney after the government informed her it was interested in
    talking to Melgar about Gantz’s murder. In a conversation with his attorney, he
    -5-
    confessed to killing Gantz along with Smalls and Cook and gave a videotaped
    statement to the FBI on February 24, 2006.
    After a trial in which Melgar and Cook testified against Smalls, Smalls was
    found guilty of five federal offenses:
    •      Conspiracy to retaliate against a witness, victim, or informant in
    violation of 
    18 U.S.C. § 1513
    (f);
    •      Retaliating against a witness, victim or informant in violation of 
    18 U.S.C. § 1513
    (a)(1)(B);
    •      Conspiracy to tamper with a witness, victim, or informant in
    violation of 
    18 U.S.C. § 1512
    (k);
    •      Tampering with a witness, victim, or informant in violation of 
    18 U.S.C. § 1512
    (a)(1)(A) and (C);
    •      K illing a person aiding in a federal investigation in violation of 
    18 U.S.C. § 1121
    (a)(2).
    On appeal, Smalls argues that the district court’s numerous errors constitute
    cumulative error and warrant a new trial.
    II. Analysis
    Smalls asserts four classes of errors relating to (1) evidence that was
    admitted at trial; (2) prosecutorial misconduct; (3) the jury instructions; and (4)
    sufficiency of the evidence. As we explain, none of these contentions amounts to
    reversible error, nor is there any basis for finding cumulative error.
    A. Evidentiary Issues
    Smalls asserts the district court erroneously admitted a number of pieces of
    evidence relating to his conduct and the conduct of the other persons involved in
    the murder: (1) Smalls’s statement to his wife during her asthma attack admitted
    -6-
    as “signature quality” evidence pursuant to Rule 404(b) of the Federal Rules of
    Evidence; (2) his prior felony convictions admitted as impeachment evidence
    pursuant to Rule 609(a)(1); (3) statements by Cook and Melgar admitted as
    statements by co-conspirators pursuant to Rule 801(d)(2)(E); (4) statements by
    Cook and Melgar admitted as prior consistent statements pursuant to Rule
    801(d)(1)(B); and (5) video surveillance, still photos, and accompanying
    testimony related to Smalls’s conversations with a fellow inmate. 1
    As long as there was an objection to the admission of evidence, “[w]e
    review for abuse of discretion the district court’s evidentiary rulings, considering
    the record as a whole.” United States v. Becker, 
    230 F.3d 1224
    , 1228 (10th Cir.
    2000). We will not reverse a district court’s decision if it “falls within the bounds
    of permissible choice in the circumstances.” United States v. Cardinas Garcia,
    
    596 F.3d 788
    , 797 (10th Cir. 2010). Nor will we reverse that decision “absent a
    distinct showing it was based on a clearly erroneous finding of fact or an
    erroneous conclusion of law or manifests a clear error of judgment.” United
    States v. Stiger, 
    413 F.3d 1185
    , 1194 (10th Cir. 2005).
    If there was no objection, we review for plain error. “We find plain error
    only when there is (1) error, (2) that is plain, (3) which affects substantial rights,
    and (4) which seriously affects the fairness, integrity, or public reputation of
    1
    At oral argument, Smalls abandoned his claim that the district court
    improperly admitted evidence under the forfeiture by wrongdoing exception to the
    rule against hearsay. Fed. R. Evid. 804(b)(6).
    -7-
    judicial proceedings.” United States v. Romero, 
    491 F.3d 1173
    , 1178 (10th Cir.
    2007). “The plain error standard presents a heavy burden for an appellant” and
    “is to be used sparingly.” 
    Id.
     at 1178–79.
    We evaluate the evidentiary claims under these standards.
    1. Signature Quality Evidence Under Rule 404(b)
    Smalls had a tumultuous relationship with his ex-wife, which included a
    domestic assault that took place in 2004. The district court allowed evidence of
    the assault to be admitted at trial, and, in particular, testimony that elements of
    the attack on his ex-wife bore a strong resemblance to the plan to kill Gantz.
    Under Rule 404(b) of the Federal Rules of Evidence, “[e]vidence of other
    crimes, wrongs, or acts is not admissible to prove a person’s character in order to
    show action in conformity therewith. It may, however, be admissible for another
    purpose, such as proof of motive, opportunity, intent, preparation, plan,
    knowledge, identity, or absence of mistake or accident. . . .” 2 This rule “is one of
    inclusion, rather than exclusion, unless the evidence is introduced for the
    impermissible purpose or is unduly prejudicial.” United States v. Segien, 
    114 F.3d 1014
    , 1022 (10th Cir. 1997), overruled on other grounds as recognized in
    United States v. Hathaway, 
    318 F.3d 1001
    , 1006 (10th Cir. 2003).
    2
    Smalls was tried under the version of the Federal Rules of Evidence in
    place in November 2011, which has subsequently been amended for style only.
    All citations to the Rules of Evidence will be to the version in place at the time of
    Smalls’s trial.
    -8-
    We consider a four-part test when determining whether evidence is
    admissible under Rule 404(b):
    (1) the evidence must be offered for a proper purpose;
    (2) the evidence must be relevant; (3) the trial court
    must make a Rule 403 determination of whether the
    probative value of the similar acts is substantially
    outweighed by its potential for unfair prejudice; and (4)
    pursuant to Fed. R. Evid. 105, the trial court shall, upon
    request, instruct the jury that evidence of similar acts is
    to be considered only for the proper purpose for which it
    was admitted.
    United States v. Davis, 
    636 F.3d 1281
    , 1297 (10th Cir. 2011) (citation omitted);
    see also Huddleston v. United States, 
    485 U.S. 681
    , 691–92 (1988) (discussing
    the four sources of “protection against . . . unfair prejudice” when admitting
    evidence under Rule 404(b)).
    The district court admitted evidence that Smalls pleaded guilty to a
    domestic assault against his ex-wife, 3 which took place about five months before
    Gantz’s murder, and allowed his ex-wife to testify about a statement Smalls made
    during the altercation underlying the assault conviction. The objected-to
    testimony goes like this. When his wife began having an asthma attack during the
    altercation, Smalls prevented her from accessing her inhaler and said to her: “Go
    ahead and just die. And that way, I won’t have to—it will just be natural causes
    3
    He was convicted of Aggravated Battery Against a Household Member
    with a Deadly Weapon and Criminal Sexual Penetration. For Rule 404(b)
    purposes, only evidence of the battery conviction was admitted. The district court
    allowed admission of the Criminal Sexual Penetration conviction for
    impeachment purposes under Rule 609(a)(1). See infra at 14.
    -9-
    and I’ll be done with you.” R., Vol. V at 607. Smalls eventually gave her the
    inhaler. The district court held that the evidence was admissible for the proper
    purposes of showing common identity and plan under Rule 404(b). The court
    reasoned that Smalls’s verbalized intent to use the victim’s asthma as a means to
    cover up the victim’s anticipated death in both the assault on his wife and in the
    alleged murder of Gantz was “signature quality” evidence that showed common
    identity of the assailant.
    Smalls argues that “an offhand comment during a lengthy domestic
    violence incident, not followed through on by Smalls” does not prove “that he is
    the same person who planned a cold-blooded murder by a different means for the
    benefit of a drug-trafficking organization” to which he had no ties. Reply Br. at
    -10-
    11. 4 He points to cases in which there were more pervasive similarities among
    the crimes at issue.
    Our cases interpreting Rule 404(b) allow evidence that tends to show the
    defendant’s identity as the perpetrator of the charged offense because the
    defendant proceeded by a unique modus operandi evident in prior crimes. For
    example, in United States v. Gutierrez, we held that “[i]f the crimes share
    elements that possess ‘signature quality,’ evidence of the ‘other crime’ may be
    admitted.” 
    696 F.2d 753
    , 755 (10th Cir. 1982). We concluded that the
    defendant’s driving the getaway car and using her children as cover during the
    getaway in two robberies constituted signature quality evidence. 
    Id.
     “Elements
    relevant to a ‘signature quality’ determination include the following: geographic
    location; the unusual quality of the crime; the skill necessary to commit the acts;
    4
    Smalls also argues that the evidence was unduly prejudicial under Rule
    403. At the time of trial, Rule 403 provided that relevant evidence “may be
    excluded if its probative value is substantially outweighed by the danger of unfair
    prejudice, confusion of the issues, or misleading the jury, or by considerations of
    undue delay, waste of time, or needless presentation of cumulative evidence.”
    Exclusion of otherwise admissible evidence under Rule 403 “is an extraordinary
    remedy and should be used sparingly.” United States v. Tan, 
    254 F.3d 1204
    , 1211
    (10th Cir. 2001).
    The district court did not abuse its discretion in concluding that the risk of
    undue prejudice did not substantially outweigh the evidence’s probative value.
    Smalls’s statement does not show how Smalls actually behaved throughout the
    domestic dispute; it concerned only his plans to cover up the death and thus
    helped establish his identity as a conspirator in Gantz’s murder, where he used a
    similar excuse. And the crimes were sufficiently dissimilar to reduce the
    likelihood that the jury would convict Smalls on the basis of conformity evidence.
    -11-
    or use of a distinctive device.” United States v. Shumway, 
    112 F.3d 1413
    , 1420
    (10th Cir. 1997) (citations omitted). This list is not exhaustive, but it does
    underscore the requirement that the characteristics of the crimes “be so unusual
    and distinctive as to be like a signature.” United States v. Connelly, 
    874 F.2d 412
    , 417 (7th Cir. 1989) (emphasis omitted).
    A court’s assessment of the number and pervasiveness of similarities
    between the crimes may help determine whether they possess signature qualities,
    but the distinctiveness of common characteristics is also relevant to the inquiry.
    In Shumway, we stated,
    the weight to be given to any one element and the
    number of elements necessary to constitute a “signature”
    are highly dependent on the elements’ uniqueness in the
    context of a particular case. In other words, a few
    highly unique factors may constitute a “signature,”
    while a number of lesser unique factors “although
    insufficient to generate a strong inference of identity if
    considered separately, may be of significant probative
    value when considered together.”
    
    112 F.3d at 1420
     (quoting United States v. Myers, 
    550 F.2d 1036
    , 1045 (5th Cir.
    1977)). Where only one common characteristic of two crimes is particularly
    distinctive, that similarity may be sufficient on its own to show signature quality.
    Compare United States v. Howe, 
    538 F.3d 842
    , 849 (8th Cir. 2008) (stripping
    victim naked at gunpoint during robberies was so “unusual and distinctive enough
    as to be like a signature”), abrogated on other grounds by United States v.
    Villareal-Amarillas, 
    562 F.3d 892
     (8th Cir. 2009), with United States v. Thomas,
    -12-
    
    321 F.3d 627
    , 635 (7th Cir. 2003) (pattern of dropping contraband and fleeing
    police was too “garden variety” to constitute signature quality evidence). See
    also United States v. Andrini, 
    685 F.2d 1094
    , 1096–97 (9th Cir. 1982) (testimony
    about defendant’s description during a camping trip of a distinctive fire-starting
    device later used in an arson was admissible to prove the identity of the arsonist).
    The district court’s finding of identity is based on Smalls’s verbalized
    intent to use asthma as an explanation for a victim’s anticipated death on two
    separate occasions within a five-month span. Although the circumstances,
    outcomes, and motivations of Smalls’s two crimes were different, they contained
    a certain distinctive and shared signature quality—Smalls’s professed willingness
    to use the victim’s asthma to explain a death for which he was (or would have
    been) responsible. A plan to use asthma as an excuse to cover up a victim’s true
    cause of death is sufficiently “unusual and distinctive” to constitute a signature
    quality.
    Smalls also argues that even if the intended use of asthma as a cover-up can
    by itself constitute signature quality evidence, the fact that Gantz was ultimately
    strangled, and not suffocated, means Smalls’s statement to his wife was unrelated
    to the murder. But this fact does not render the evidence improper under Rule
    404(b). Evidence introduced at trial showed that Smalls, Cook, and Melgar
    planned to suffocate Gantz and use the victim’s asthma as a way to cover up their
    crime. Smalls expressed precisely the same idea during the altercation with his
    -13-
    wife, which tends to show similar plans of action. That Gantz’s murder did not
    go according to plan does not render the evidence improper for Rule 404(b)
    purposes.
    Smalls’s prior conviction and his wife’s testimony were admitted for a
    proper purpose under Rule 404(b) and the district court limited the admissible
    information to avoid unfair prejudice. 5 The court did not abuse its discretion in
    admitting this evidence.
    2. Prior Felony Convictions Under Rule 609(a)(1)
    In a pre-trial order, the district court allowed the admission of Smalls’s
    2005 felony convictions as impeachment evidence if Smalls testified at trial. He
    was convicted pursuant to two guilty pleas related to the altercation with his
    wife. 6 The court determined that the evidence was admissible because the
    convictions occurred within the previous ten years, the prior convictions and
    current charges were sufficiently dissimilar to limit the risk of the jury using the
    prior convictions as evidence of Smalls’s propensity to commit the charged
    5
    Smalls is correct that this evidence does not constitute evidence of a
    common plan under Rule 404(b). Plan evidence is offered to show that the crime
    for which the defendant is accused is actually part of a pre-arranged plan or
    scheme. See, e.g., United States v. Roberts, 
    88 F.3d 872
    , 880–81 (10th Cir.
    1996). The domestic violence episode and Gantz’s murder were not related to a
    common scheme. Smalls’s plan to invoke the same cover-up in each crime is
    more accurately characterized as identity evidence rather than plan evidence.
    6
    As stated previously, Smalls was convicted of Aggravated Battery
    Against a Household Member with a Deadly Weapon and Criminal Sexual
    Penetration in connection with the altercation with his wife.
    -14-
    crimes, and Smalls’s credibility would be a central issue for the jury in the event
    Smalls testifies. The district court also acknowledged the inflammatory nature of
    the prior crimes but nevertheless concluded that the names and nature of the
    crimes could come in without additional detail.
    When the defendant is a witness in his own trial, the prosecution may
    introduce evidence of the defendant’s past felony conviction to attack his
    character for truthfulness “if the court determines that the probative value of
    admitting this evidence outweighs its prejudicial effect to the accused.” Fed. R.
    Evid. 609(a)(1). This “special balancing test” is used because “the defendant
    faces a unique risk of prejudice—i.e., the danger that convictions that would be
    excluded under [Rule 404] will be misused by a jury as propensity evidence
    despite their introduction solely for impeachment purposes.” Fed. R. Evid. 609,
    advisory committee’s notes (1990 Amendments).
    In the context of Rule 609(a)(1), courts have identified the following five
    factors for consideration: (1) the impeachment value of the defendant’s prior
    crimes; (2) the dates of the convictions and the defendant’s subsequent history;
    (3) the similarity between the past crime and charged crime; (4) the importance of
    the defendant’s testimony; and (5) the centrality of the defendant’s credibility at
    trial. See 4 Jack B. Weinstein & Margaret A. Berger, Weinstein’s Federal
    Evidence, § 609.05[3][a] (Joseph M. McLaughlin, ed., Matthew Bender, 2d ed.
    2013).
    -15-
    Smalls does not contest the admission of the fact that he had two prior
    felony convictions. He argues only that the district court abused its discretion in
    admitting the names and nature of the prior convictions without a special finding
    that the probative value of the names of the convictions outweighed their
    obviously prejudicial nature. Smalls cites United States v. Yazzie, 
    188 F.3d 1178
    (10th Cir. 1999), for the proposition that a court may limit Rule 609 evidence
    under Rule 403 to the mere fact of a felony conviction when the prejudice of the
    other information is too great.
    Yazzie does not help Smalls because the case did not involve a witness at
    trial. The defendant in Yazzie sought to introduce evidence of the murdered
    victim’s past felonies to impeach the credibility of the victim’s out-of-court
    statement introduced through a witness at trial. We held that the district court did
    not err in refusing to introduce this evidence on Rule 403 grounds. But because
    the source of the out-of-court statements was not a witness at trial, “[t]here was
    no testimony . . . subject to impeachment” that would implicate Rule 609. Yazzie,
    
    188 F.3d at 1191
    .
    The well-settled rule in this circuit is that the permissible scope of
    cross-examination under Rule 609 extends to the essential facts of convictions,
    the nature of the crimes, and the punishment. See United States v. Commanche,
    
    577 F.3d 1261
    , 1270–71 (10th Cir. 2009) (quoting United States v. Wolf, 
    561 F.2d 1376
    , 1381 (10th Cir. 1977)). Indeed, the failure to include the names and nature
    -16-
    of prior offenses may prejudice the defendant because the jury is left to speculate
    as to the essential facts of prior convictions. See United States v. Burston, 
    159 F.3d 1328
    , 1335 (11th Cir. 1998) (“The implicit assumption of Rule 609 is that
    prior felony convictions have probative value. Their probative value, however,
    necessarily varies with their nature and number.”). The district court admitted
    only presumptively admissible information about Smalls’s prior convictions and
    properly determined that they were dissimilar enough from the murder charge
    such that a jury would not convict Smalls on the basis of propensity reasoning.
    We find no abuse of discretion in the district court’s decision.
    3. Co-Conspirator Statements Under Rule 801(d)(2)(E)
    Smalls next argues the district court erred in admitting out-of-court
    statements made by Melgar because the district court wrongly concluded that
    Smalls was a member of the conspiracy to kill Gantz. But the pre-trial ruling on
    the co-conspirator issue addressed only whether Smalls and Cook were co-
    conspirators.
    A statement made by a co-conspirator “during the course and in furtherance
    of the conspiracy” is not hearsay. Fed. R. Evid. 801(d)(2)(E). To admit a
    co-conspirator’s statements, the district court must find: “(1) by a preponderance
    of the evidence, a conspiracy existed, (2) the declarant and the defendant were
    both members of the conspiracy, and (3) the statements were made in the course
    -17-
    of and in furtherance of the conspiracy.” United States v. Patterson, 
    713 F.3d 1237
    , 1245 (10th Cir. 2013).
    At the time of the James 7 hearing on this issue and the district court’s
    order, Melgar had reached a plea agreement with the government, but Cook had
    not. The government intended to offer co-conspirator statements against Smalls
    and Cook through Melgar’s testimony. Consequently, there was never an
    objection or a ruling on whether Melgar’s out-of-court statements were admissible
    under the co-conspirator rule. The only example of an introduction of Melgar’s
    out-of-court statements that we can find in the record is Melgar’s videotaped
    testimony to the FBI. 8 Smalls did not object to the admission of the video at trial;
    in fact, he introduced it as impeachment evidence against Melgar immediately
    after Melgar testified. Although Smalls may have an argument that the video
    should not have been introduced under the co-conspirator rule, he cannot attack
    evidence that he brought in to impeach Melgar.
    Smalls also suggests that the court erred in permitting Melgar to testify as
    to out-of-court statements made by Smalls under the co-conspirator rule. But
    such statements are not hearsay because they are statements of a party opponent
    and do not implicate the co-conspirator rule. Fed. R. Evid. 801(d)(2)(A).
    7
    United States v. James, 
    590 F.2d 575
     (5th Cir. 1979).
    8
    Melgar’s attorney also testified to out-of-court statements made by
    Melgar, but these statements were admitted as prior consistent statements under
    Rule 801(d)(1)(B).
    -18-
    4. Prior Consistent Statements Under Rule 801(d)(1)(B)
    Smalls argues against the admission of certain out-of-court statements made
    by Cook and Melgar under the prior-consistent-statement rule.
    A statement is not hearsay if the declarant testifies and is subject to
    cross-examination about a prior statement when the statement “is consistent with
    the declarant’s testimony and is offered to rebut an express or implied charge
    against the declarant of recent fabrication or improper influence or motive.” Fed.
    R. Evid. 801(d)(1)(B); see also Tome v. United States, 
    513 U.S. 150
    , 167 (1995)
    (“The Rule permits the introduction of a declarant’s consistent out-of-court
    statements to rebut a charge of recent fabrication or improper influence or motive
    only when those statements were made before the charged recent fabrication or
    improper influence or motive.”). These statements are admitted as substantive
    evidence, not just to rebut an attack on the witness’s credibility. 
    Id. at 157
    .
    Under our precedent, a declarant has a motive to lie as soon as he is
    arrested. United States v. Moreno, 
    94 F.3d 1453
    , 1455 (10th Cir. 1996); see also
    United States v. Powell, 220 F. App’x 805, 812 (10th Cir. 2007) (unpublished)
    (“Gabriel Davis’s prior consistent statements followed his arrest, however,
    meaning that, according to the logic of our precedent, the statements came after
    Mr. Davis had acquired a motive to lie.”) (emphasis omitted). But we have also
    found that an improper motive may arise even before the declarant’s arrest. For
    example, in United States v. Albers, we held that the pre-motive requirement was
    -19-
    not met when a declarant made the prior statement to an investigator only after he
    had become afraid that his co-conspirators would testify against him. 
    93 F.3d 1469
    , 1482–83 (10th Cir. 1996).
    The district court admitted Cook’s recorded statement to fellow inmate,
    Larry Green, in which Cook described the three defendants’ roles in Gantz’s
    murder. Cook made this statement to Green following news that federal
    authorities were investigating Gantz’s death as a homicide. The court found that
    Cook had no motive to lie because he was not charged for another year and his
    plea bargain was not made for another five years. Smalls argues that the motive
    to lie had arisen by the time Cook made the statement because Gantz’s death was
    being investigated as a homicide and Cook needed a story to minimize his role
    and have someone against whom to cooperate. Although the latter assertion is
    pure speculation, the fact is that Cook was unaware that he was in the presence of
    a government agent. Cook could not have been motivated to curry favor with the
    government because Cook was unaware that the government was recording him.
    The district court did not abuse its discretion in admitting the recorded
    statements.
    Smalls also argues that for a prior consistent statement to be admissible
    under the Confrontation Clause, it must meet pre-Crawford 9 standards of
    reliability. But the “Confrontation Clause has no application to [nontestimonial]
    9
    Crawford v. Washington, 
    541 U.S. 36
     (2004).
    -20-
    statements and therefore permits their admission even if they lack indicia of
    reliability.” Whorton v. Bockting, 
    549 U.S. 406
    , 420 (2007); see also United
    States v. Smalls, 
    605 F.3d 765
    , 780 (10th Cir. 2010) (“[T]he only question
    pertinent to the admissibility of a nontestimonial statement is whether it meets the
    requirements of the Federal Rules of Evidence.”). We previously held that
    Cook’s statement was nontestimonial, see 
    id. at 778
    , and thus the Confrontation
    Clause does not apply.
    The district court admitted a statement made by Melgar to his attorney that
    implicated the three cellmates in Gantz’s murder. The statement was made while
    Melgar was being held for illegal reentry into the United States and after his
    attorney informed Melgar that the United States was interested in debriefing about
    Gantz’s murder. The district court held that the statement was made before any
    motive to fabricate arose because it was made in the context of the attorney-client
    relationship in an unrelated case, prior to debriefing with the FBI, and well before
    Melgar was charged with Gantz’s murder. In opposition, Smalls argues that the
    motive to fabricate arose before Melgar made the statement to his attorney.
    Melgar made the statement only after being told of the government’s interest in
    debriefing. Smalls argues that Melgar’s attorney had informed Melgar that the
    government was seeking his cooperation and was advised of the potential benefits
    to him. Melgar was thus motivated to tell a “good story” and his attorney was the
    “test audience.” Aplt. Br. at 21.
    -21-
    The Second Circuit has allowed prior consistent statements made to a
    declarant’s attorney after the attorney informed him of a co-conspirator’s
    probable cooperation with the government. In United States v. Caracappa, 
    614 F.3d 30
     (2d Cir. 2010), the defendant argued that the declarant’s motive to lie
    arose immediately upon an accomplice’s arrest and thus a statement the declarant
    subsequently made to his attorney was inadmissible as a prior consistent
    statement. The district court had reasoned in Caracappa that for the defendant’s
    theory to hold, the declarant “must have believed in 1994 that he would
    eventually cooperate with the government, hoping that his testimony against the
    defendants would be called into question and knowing that if he told [his
    attorney] of his involvement, his account would have increased merit.” 
    Id. at 40
    .
    This, the court held, was far-fetched.
    Smalls essentially makes the same argument. According to Smalls’s
    theory, Melgar would have had to make an on-the-spot decision to fabricate a
    story to his attorney so that his version of events would have increased merit in
    future proceedings. We also find this argument speculative and far-fetched.
    The district court did not abuse its discretion in admitting Melgar’s prior
    statement.
    5. Video Surveillance, Still Photos, and Accompanying Testimony
    Investigators discovered video footage from December 25, 2004 that
    showed Smalls walking through the medical unit and stopping to speak with an
    -22-
    inmate outside his cell. Cook testified that the same inmate had previously told
    him Gantz was a government informant. The footage showed Smalls making
    several gestures, including clenching his fists and pointing to his neck. Smalls
    also slid a bag under the door. Three days later, he spent ten minutes with the
    same inmate in the recreation yard.
    Video surveillance, still photos, and testimony regarding Smalls’s
    interactions with the inmate outside the inmate’s cell were admitted without
    objection, so their admission is reviewed for plain error. The district court
    originally denied the government’s motion to admit the video footage of Smalls
    interacting with the inmate because the videos were not available for viewing at
    that time, but the denial of the motion was subject to reconsideration in the event
    of an additional hearing. During trial, still photos of Smalls at the inmate’s cell
    were introduced without objection. Upon the district court’s sua sponte raising of
    the Best Evidence Rule, Fed. R. Evid. 1002, Smalls withdrew his objection to
    playing the video surveillance footage, which was shown to the jury.
    On appeal, Smalls advances several arguments against the admission of this
    evidence. First, he argues he was prejudiced by the misleading presentation of
    the evidence. The still photos amounted to “editorialized” evidence, where the
    witness, a government agent, described what she believed the still photos showed.
    Aplt. Br. at 38. And the video format, which displayed images that were captured
    in six-second intervals and in fast-forward speed, prejudiced Smalls because his
    -23-
    movements appeared violent and jerky. Smalls also argues that the evidence was
    irrelevant and the government’s descriptions of it speculative. In its closing
    argument, the government had asserted that Smalls’s movements were
    descriptions to the inmate of how the conspirators would murder Gantz.
    As to his first argument, the admission of “editorialized” still photos was
    not plain error because it did not prejudice Smalls. During her testimony, the
    government agent described Smalls in one still photo as pressing his clenched
    fists downward and, in another photo, gesturing toward his neck. Smalls points to
    a district court case in which the court prohibited admission of selected portions
    of a chat room conversation because the “cut-and-paste” document did “not
    accurately represent the entire conversations that took place between the
    defendant and [the victim].” United States v. Jackson, 
    488 F. Supp. 2d 866
    , 871
    (D. Neb. 2007). But the district court here cured any prejudice that could have
    occurred through the admission of still photos derived from video surveillance
    and the agent’s commentary. The court raised the Best Evidence Rule, and
    Smalls removed his objection to showing the video surveillance footage. Thus,
    the jury was able to see the video free from editing and commentary.
    The admission of the video surveillance footage was likewise not plainly
    erroneous. Smalls makes no argument besides speculating that the video’s
    format, which made Smalls’s movements appear violent and jerky, prejudiced the
    jury. This unsupported assertion is not sufficient to establish error, let alone plain
    -24-
    error. And any prejudice to Smalls was minimized when a witness explained how
    the prison’s video surveillance system captures and displays images in such a way
    as to present Smalls’s movements in six-second intervals.
    Smalls also alleges that the evidence pertaining to his interaction with the
    inmate was irrelevant. The government argues that because Smalls asserted in his
    opening statement that the inmate told Cook about Gantz being an informant,
    Smalls made these interactions relevant to combat the defense’s theory that only
    Cook had a motive to kill Gantz. Smalls responds that it was the government that
    expressed before trial its intent to make the inmate an issue in the case.
    Regardless of whether the evidence was introduced to attack the
    defendant’s theory of the case or simply as evidence of Smalls’s involvement in
    the planning of the murder, it is clearly relevant. Cook testified that the inmate
    had told him about the hit on Gantz. Smalls’s conversation with the source of this
    information is relevant to establishing that Smalls was aware of the hit and thus
    may have had a motive to participate.
    Smalls also argues the government, in its closing arguments, improperly
    speculated that Smalls’s actions at the inmate’s cell indicated that he was
    describing the murder to the inmate. Whether a statement constitutes improper
    speculation, however, is a narrower inquiry than Smalls suggests. See Thornburg
    v. Mullin, 
    422 F.3d 1113
    , 1134 (10th Cir. 2005) (“A prosecutor is allowed to
    comment on the evidence and draw inferences therefrom, but he may not
    -25-
    speculate or refer to evidence never presented to the jury.”). The government
    never speculated or referred to evidence not presented to the jury. The
    government properly presented evidence of Smalls talking with the inmate in the
    days leading up to the murder and offered reasonable inferences as to the meaning
    of his gestures.
    In sum, the district court did not err in admitting the evidence.
    B. Prosecutorial Misconduct
    Smalls next argues that the government knowingly solicited false testimony
    from Melgar and Cook. He alleges that Cook and Melgar’s testimony that they
    used a bag to suffocate Gantz contradicted the uncontroverted medical evidence
    that Gantz was strangled. The government was aware of this information, yet
    allowed the two witnesses to testify without correction and a government agent to
    corroborate their testimony. Smalls also argues that the government improperly
    vouched for Melgar in its opening and closing statements by arguing that his
    testimony was reliable because Cook had corroborated it.
    “A conviction obtained by the introduction of perjured testimony violates
    due process if (1) the prosecution knowingly solicited the perjured testimony or
    (2) the prosecution failed to correct testimony it knew was perjured.” United
    States v. Vaziri, 
    164 F.3d 556
    , 563 (10th Cir. 1999). The appellant bears the
    burden of establishing the presentation of false evidence. Smith v. Gibson, 
    197 F.3d 454
    , 458 (10th Cir. 1999).
    -26-
    The government did not elicit false testimony. The government, of course,
    recognized that Gantz died as a result of strangulation. But the purpose of Melgar
    and Cook’s testimony was to support their theory that the conspirators intended to
    suffocate Gantz and ended up strangling him instead. There was expert testimony
    that the results of the autopsy were consistent with Melgar and Cook’s testimony
    —that Melgar placed the plastic bag over Gantz’s head and then pushed down
    with his clenched fists. That Melgar continued to believe he did not touch
    Gantz’s neck does not render the testimony false. He may not recollect whether
    he touched Gantz’s neck or may be convinced he did not. Regardless, this is an
    issue of credibility for the jury and is not definitively false testimony. And the
    government agent’s testimony simply confirms that Cook and Melgar believed
    that they suffocated Gantz before they were arrested and charged.
    The government did not engage in impermissible vouching. The
    prosecution engages in impermissible vouching “only if the jury could reasonably
    believe that the prosecutor is indicating a personal belief in the witness’
    credibility, either through explicit personal assurances of the witness’ veracity or
    by implicitly indicating that information not presented to the jury supports the
    witness’ testimony.” United States v. Bowie, 
    892 F.2d 1494
    , 1498 (10th Cir.
    1990). In this case, the prosecutor asked the jury to credit Melgar’s testimony on
    the basis of Cook’s corroborating testimony, which was before the jury to
    consider. The prosecutor did not make personal assurances of the veracity of
    -27-
    either witness or suggest that he had information not before the jury to support
    the testimony.
    C. Jury Instructions
    Smalls challenges the district court’s decisions regarding four jury
    instructions. He argues the district court abused its discretion in declining to
    adopt instructions that (1) Smalls’s mere presence in the cell was not evidence of
    guilt, (2) the truthfulness provisions in Cook and Melgar’s plea agreements did
    not verify the truth of their testimony, and (3) testimony by co-conspirators
    should be weighed with greater care than other testimony. He also argues the
    court plainly erred in failing to give a curative instruction for the government’s
    vouching of Cook and Melgar’s testimony.
    We review the decision to give or refuse a particular jury instruction for
    abuse of discretion. United States v. Bedford, 
    536 F.3d 1148
    , 1152 (10th Cir.
    2008). But where a party does not object to the inclusion or exclusion of a
    particular instruction, we review for plain error. United States v. Romero, 
    491 F.3d 1173
    , 1178 (10th Cir. 2007).
    1. Presence in Cell
    The court declined to instruct the jury that Smalls’s mere presence in the
    cell was not evidence of guilt. It denied the instruction because the court gave
    the instruction that mere knowledge is not enough for a conspiracy and that mere
    presence is not enough for aiding and abetting liability, which were contained in
    -28-
    the instructions for three separate counts. Smalls argues that a stand-alone mere
    presence instruction was necessary because instructing the jury on mere
    knowledge and mere presence in connection with only three counts implied that it
    may consider mere presence in connection with the other two counts.
    The district court did not abuse its discretion in declining to adopt a mere
    presence instruction. “It is not error to refuse to give a requested instruction if
    the same subject matter is adequately covered” elsewhere. United States v.
    Miller, 
    460 F.2d 582
    , 588 (10th Cir. 1972). In each of the counts, the jury was
    instructed that conviction required agreement or knowing conduct or both. No
    stand-alone mere presence instruction was necessary as the jury was explicitly
    instructed of the requirement that Smalls have some active involvement in the
    conspiracy or the act. That the mere presence instruction was given in other
    counts does not alter this conclusion. A mere presence instruction simply
    emphasizes the active involvement requirement to the jury. Failure to give the
    instruction on some counts does not transform the express meaning of
    “agreement” or “knowing conduct” and thus would not confuse the ordinary juror.
    2. Truthfulness
    The district court also declined to instruct the jury that the government had
    no greater ability to verify Cook and Melgar’s truthfulness than the jury. Smalls
    argues this curative instruction was necessary because the truthfulness provisions
    in Cook and Melgar’s plea agreements—which conditioned the receipt of certain
    -29-
    government benefits on a finding that they testified truthfully— were entered into
    evidence and thus had the effect of vouching for the witnesses’ truthfulness. He
    cites to United States v. Harlow, 
    444 F.3d 1255
    , 1265 (10th Cir. 2006), in which
    we held that to the extent that any impermissible vouching occurred by the
    admission of plea agreements with truthfulness provisions, the district court’s
    credibility instructions cured any error.
    Harlow is distinguishable. We held in Harlow that submission of the
    witnesses’ plea agreements, which also contained provisions conditioning
    government benefits on a finding of truthful testimony, was erroneous because
    they were submitted “in conjunction with the evidence that the prosecutor moved
    for the benefits thereunder and the judge issued his approval.” 
    Id. at 1262
    . It was
    the additional evidence of the government’s finding that the testimony was
    truthful, not the truthfulness provisions on their own, that had the effect of
    improper government vouching. Here, by contrast, the government introduced
    only the plea agreements, which does not constitute improper vouching. See
    United States v. Claycomb, 372 F. App’x 832, 840 (10th Cir. 2010) (“[I]t is
    permissible for a prosecutor to introduce a witness’s plea agreement including a
    truthfulness provision and to discuss that provision to make sure the witness is
    aware of the consequences of failing to tell the truth and for the purpose of
    heading off any claim the witness’s testimony is suspect because of the plea
    agreement.”).
    -30-
    The district court did not abuse its discretion in declining to issue a
    credibility instruction.
    3. Weighing Testimony
    Smalls also argues the district court abused its discretion in declining to
    give an instruction on the care required to weigh the testimony of Melgar and
    Cook. Smalls had asked the district court to instruct the jury that Melgar and
    Cook’s testimony should be weighed with greater care than the testimony of a
    witness who did not commit a crime. Contrary to Smalls’s assertions, the district
    court did give an instruction that the jury should “receive this type of testimony
    with caution and weigh it with great care,” as well as other instructions
    emphasizing this notion. Supp. R., Vol. IV at 323. The district court did not
    abuse its discretion in declining to use the precise language from Smalls’s
    proposed instruction.
    4. Curative Instruction for Vouching
    Finally, Smalls argues the district court plainly erred in failing to give a
    curative instruction for the government’s alleged improper vouching of Cook and
    Melgar’s testimony. Smalls acknowledges that improper vouching can be cured
    by an appropriate instruction. See Harlow, 
    444 F.3d at 1265
    . But the government
    did not improperly vouch for any testimony because it did not make “personal
    assurances of the witness’ veracity” or “implicitly indicat[e] that information not
    -31-
    presented to the jury supports the witness’ testimony.” Bowie, 
    892 F.2d at 1498
    .
    Thus, a curative instruction was not necessary.
    D. Sufficiency of the Evidence
    Whether there is sufficient evidence to support a conviction is a legal
    question that is reviewed de novo. United States v. Hasan, 
    609 F.3d 1121
    , 1132
    (10th Cir. 2010). We view the evidence in the light most favorable to the
    government and must draw all reasonable inferences in favor of the government.
    United States v. King, 
    632 F.3d 646
    , 650 (10th Cir. 2011). It is not our job to
    “weigh conflicting evidence or consider witness credibility, as that duty is
    delegated exclusively to the jury.” United States v. Hien Van Tieu, 
    279 F.3d 917
    ,
    921 (10th Cir. 2002).
    Smalls was convicted of five federal offenses: retaliation against a
    government witness or informant, conspiracy to retaliate, tampering with a
    government witness or informant, conspiracy to tamper, and killing an assistant in
    a federal investigation. Smalls argues that the government presented insufficient
    evidence to sustain his convictions. Specifically, he contends there was
    insufficient evidence of his participation in Gantz’s murder and of the specific
    intent required by the statutes. He also argues that the government did not
    establish it was reasonably likely that, had Gantz communicated with a law
    enforcement officer, it would have been a federal officer. Because the
    -32-
    government presented sufficient evidence to sustain the convictions, we affirm the
    judgment of the district court.
    1. Participation in the Murder
    Smalls first argues that the jury had insufficient evidence to establish he
    participated in Gantz’s murder. According to Smalls, no reasonable juror could
    find that the murder happened as Melgar described because Melgar’s testimony
    that he suffocated Gantz contradicted the medical evidence that Gantz died by
    strangulation. Further, Cook was unable to articulate his precise role in the
    murder and it remained unanswered how Smalls restrained Gantz’s feet.
    Each of these points concerns how the jury resolved conflicting testimony,
    which is not within the scope of our review and is exclusively a jury function.
    The government presented sufficient evidence that Smalls participated in the
    murder: his cellmates testified that all three individuals participated in the
    murder and an expert opined that the lack of defensive wounds on Gantz’s body
    was consistent with being restrained.
    2. Intent to Retaliate
    A defendant is guilty of retaliating against a witness if he knowingly kills a
    person with intent to retaliate against that person for being a witness at an official
    proceeding or “for providing to a law enforcement officer any information
    relating to the commission or possible commission of a Federal offense.” 
    18 U.S.C. § 1513
    (a)(1)(A), (B). A defendant who conspires to commit the offense of
    -33-
    retaliation is subject to the same penalties. § 1513(f). “[T]he government need
    not adduce direct evidence of Appellant’s knowledge of a witness’s informant
    status in order for the jury to infer his intent to retaliate.” United States v.
    Ashley, 
    606 F.3d 135
    , 140 (4th Cir. 2010) (internal quotation marks omitted).
    Smalls argues that there was insufficient evidence presented to sustain his
    convictions for retaliation and conspiracy to retaliate because the government did
    not introduce evidence of intent to retaliate. No witness testified as to Smalls’s
    intent to retaliate against Gantz for his cooperation as a federal informant. To
    reach this conclusion, Smalls maintains, the jury had to infer that Smalls was
    connected to drug traffickers or had a particular dislike of informants, which the
    evidence did not establish. While a jury may have inferred that Smalls acted in
    expectation of a reward payment for a hit on Gantz, there was no evidence that he
    acted out of a hatred of informants or to satisfy drug traffickers. To make such a
    finding, says Smalls, the jury would have had to impermissibly pile “inference
    upon inference.” United States v. Summers, 
    414 F.3d 1287
    , 1294 (10th Cir.
    2005).
    The government points to three pieces of evidence as support for the
    verdict: (1) Melgar testified that Smalls told him Gantz was a “rat” and had
    provided information about others in a federal case, R., Vol. V at 619; (2) Melgar
    testified that Smalls had told him that a letter about Gantz had been passed around
    prison and said Gantz was to be killed because he’s a rat, 
    id.
     at 643–44, 647–48;
    -34-
    and (3) Cook testified that Smalls told him Gantz was cooperating with the
    government, others wanted him dead, and there was a hit on him, 
    id.
     at 1094–95,
    1098. Melgar also testified that Smalls encouraged him to participate based on
    Gantz’s past cooperation that resulted in the capture of four “Michoacanos,” who
    Smalls described as Melgar’s “people.” Id. at 648.
    The evidence allows for a reasonable inference that Smalls killed Gantz in
    retaliation for Gantz’s previous cooperation with the government. The fact that
    Smalls discussed Gantz’s cooperation with the government in the murder’s
    planning stages is enough to infer that Gantz’s cooperation was a substantial
    motive in the murder. Based on Smalls’s knowledge and discussion of Gantz’s
    cooperation, his pressure on Melgar to participate based on Gantz’s previous
    cooperating activities, and his knowledge of the hit on Gantz, a reasonable juror
    could infer an intent to retaliate. Smalls’s theory that it was more likely that he
    committed the murder for his own monetary benefit is not inconsistent with being
    motivated by an intent to retaliate. In Ashley, the court upheld a defendant’s
    conviction under § 1513 where the defendant was paid for his attempt to have an
    informant killed in retaliation for giving information to law enforcement about a
    fellow inmate. Ashley, 
    606 F.3d at
    139–40. Smalls’s ultimate purpose may have
    been to collect a reward for killing Gantz, but the purpose of the bounty was to
    encourage a retaliatory attack.
    3. Intent to Tamper
    -35-
    A defendant is guilty of tampering with a witness if he knowingly kills
    another person with intent to “prevent the attendance or testimony of any person
    in an official proceeding” or “prevent the communication by any person to a law
    enforcement officer or judge of the United States of information relating to the
    commission or possible commission of a Federal offense.” 
    18 U.S.C. § 1512
    (a)(1)(A), (C). A defendant who conspires to commit the offense of
    tampering is subject to the same penalties. § 1512(k). “To sustain a conviction
    under [§ 1512] the government does not need to prove the defendant knew of the
    existence of an ongoing official proceeding.” United States v. Ahrensfield, 
    698 F.3d 1310
    , 1324 (10th Cir. 2012) (citing § 1512(c)(2)). Rather, “a conviction is
    proper under the statute if interference with the official proceeding is the ‘natural
    and probable effect’ of the defendant’s conduct.” United States v. Phillips, 
    583 F.3d 1261
    , 1264 (10th Cir. 2009) (quoting United States v. Aguilar, 
    515 U.S. 593
    ,
    601 (1995)). 10
    10
    In Aguilar, the Supreme Court addressed the intent element under 
    18 U.S.C. § 1503
    (a), which criminalizes “corruptly endeavor[ing] to influence,
    obstruct, or impede” the due administration of justice. The Court announced the
    “natural and probable effect” test (or the “nexus” requirement) as the correct
    approach to determining whether a defendant acts with the requisite intent under
    the statute. Aguilar, 
    515 U.S. at 601
    . In Arthur Andersen LLP v. United States,
    
    544 U.S. 696
    , 708 (2005), the Court applied this test to the intent element under
    
    18 U.S.C. § 1512
    (b), which prohibits knowingly and corruptly persuading another
    person to withhold documents in an official proceeding. Based on the similar
    language of §§ 1503(a) and 1512(c)(2), and the Supreme Court’s application of
    the Aguilar test to another section of § 1512, we held the “natural and probable
    effect” test applies to § 1512(c)(2). Phillips, 
    583 F.3d at 1264
    . For substantially
    (continued...)
    -36-
    Smalls argues that there was insufficient evidence to establish the requisite
    specific intent. The only evidence that Gantz was still assisting federal
    investigators was that he was a potential witness in the government’s case against
    a reneging cooperator. And Gantz had last provided information to the
    government nearly a year before the murder; thus, an inference of intent to hinder
    attendance or communication cannot be reasonably derived from these
    circumstances.
    But the government introduced sufficient evidence for a jury to infer that
    interference was the “natural and probable effect” of Smalls’s conduct. Smalls
    was aware that Gantz had cooperated with federal authorities in the past and
    manifested a belief that Gantz was still cooperating. 11 Gantz also was, at the time
    of the murder, a potential witness in the upcoming trial of the reneging
    government cooperator. Even if Smalls was not specifically aware of this
    information, preventing a witness’s testimony in a federal proceeding is a natural
    and probable effect of killing a known government informant. See Ashley, 
    606 F.3d at 140
     (“We are mindful that retaliation against informants and witness
    tampering are distinct offenses. While the difference between them should not be
    10
    (...continued)
    the same reasons we described in Phillips, the Aguilar test is the correct approach
    to determining whether the defendant acted with the requisite intent under
    § 1512(a)(1)(A) and (C).
    11
    Cook testified that Smalls said, “Gantz was cooperating with the federal
    authorities or whatever.” R., Vol. V at 1098.
    -37-
    blurred, the two offenses are often related. Providing information and serving as
    a witness often go hand-in-hand, and the proof used to support a conviction on
    one offense will frequently underlie a conviction on another, notwithstanding the
    differences between the two statutes.”).
    Viewed in a light most favorable to the government, a reasonable juror
    could infer from this evidence that Smalls killed Gantz to prevent him from
    testifying in a federal proceeding. 12
    4. Communication with Federal Law Enforcement Authorities
    Finally, Smalls contends that there was insufficient evidence to show that
    Gantz would have had a future relevant communication with federal law
    enforcement. He points to a recent Supreme Court case, Fowler v. United States,
    
    131 S. Ct. 2045
     (2011), to support his claim that there was insufficient evidence
    to sustain his conviction under the federal witness tampering statute. The Court
    in that case held the government must show a “reasonable likelihood” that had the
    victim communicated with a law enforcement official, at least one relevant
    communication would have been made to a federal official. 
    Id. at 2052
    . The
    Court stressed that the government “need not show that such a communication,
    had it occurred, would have been federal beyond a reasonable doubt, nor even that
    12
    Smalls offers the same intent argument to challenge his conviction of
    killing Gantz for aiding a federal investigation in violation of 
    18 U.S.C. § 1121
    (a)(2). But, as with the retaliation and tampering counts, the government
    introduced sufficient evidence that Smalls was motivated by Gantz’s assistance in
    a federal investigation, which was ongoing at the time of Gantz’s murder.
    -38-
    it is more likely than not.” 
    Id.
     But it “must show that the likelihood of
    communication to a federal officer was more than remote, outlandish, or simply
    hypothetical.” 
    Id.
    The government submitted enough evidence from which a jury could infer
    that it was reasonably likely that had Gantz communicated with a law
    enforcement officer, he would have communicated with a federal officer. Gantz
    was cooperating with the FBI, had debriefed twice with the FBI regarding drug
    trafficking in Roswell, pleaded guilty to a plea agreement with cooperation
    language, and was a potential witness in a future trial of a reneging cooperator in
    a federal investigation. Melgar also testified that Gantz was giving out
    information about other people in a federal case.
    Because there was sufficient evidence that Smalls killed Gantz to prevent
    his communication with a law enforcement officer, and it was reasonably likely
    that this communication would have been to a federal officer, there is sufficient
    evidence to sustain his conviction under § 1512.
    E. Cumulative Error
    A cumulative error analysis evaluates “only the effect of matters
    determined to be error, not the cumulative effect of non-errors.” United States v.
    Rivera, 
    900 F.2d 1462
    , 1471 (10th Cir. 1990) (en banc). Because the district
    court did not commit error, there is no need to conduct a cumulative error
    analysis.
    -39-
    III. Conclusion
    For the foregoing reasons, we AFFIRM the judgment of the district court.
    The appellee’s motion to supplement the record is GRANTED.
    -40-