United States v. Santiago ( 2023 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 20-1708
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    ERIC SANTIAGO,
    Defendant, Appellant.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MASSACHUSETTS
    [Hon. F. Dennis Saylor, IV, U.S. District Judge]
    Before
    Barron, Chief Judge,
    Selya and Lipez, Circuit Judges.
    Jean C. LaRocque, with whom Shea and LaRocque, LLP was on
    brief, for appellant.
    Karen L. Eisenstadt, Assistant United States Attorney, with
    whom Rachael S. Rollins, United States Attorney, was on brief, for
    appellee.
    March 20, 2023
    BARRON, Chief Judge.        Eric Santiago appeals his 2020
    conviction in the United States District Court for the District of
    Massachusetts for violating 
    21 U.S.C. § 841
     by "distribut[ing]" or
    "possess[ing] with intent to . . . distribute" fentanyl. He claims
    that his conviction must be reversed because the evidence presented
    at   trial   did   not   suffice    to   support   it   and   that,   in   the
    alternative, it must be vacated due to various trial errors.               We
    affirm.
    I.
    The operative indictment charges Santiago with a single
    count of distributing and possessing with intent to distribute 400
    grams or more of fentanyl in violation of 
    21 U.S.C. § 841
    (a)(1)
    and (b)(1)(A)(vi).       The charge arises from Santiago's alleged role
    in dropping off a package of fentanyl at the home of Rafael Reyes
    -- a cooperating witness working with federal agents who were
    investigating drug-distribution networks in Boston -- and later
    accepting payment from Reyes for that package.                The jury found
    Santiago guilty following a four-day trial, and separately found
    that Santiago had been previously convicted of an offense that
    qualified     as   a     "serious   drug    felony"     under    
    21 U.S.C. § 841
    (b)(1)(A).
    Reyes was the key government witness at the trial.             He
    testified that on June 16, 2018, Santiago visited Reyes's home
    when Reyes was not there, then when Reyes returned, told Reyes
    - 2 -
    that he had some fentanyl for him, walked with Reyes into Reyes's
    garage, and showed Reyes a package of fentanyl placed near Reyes's
    car.    Reyes then testified that Santiago told him to take the
    package inside and unwrap it, which Reyes did (saving some wrapping
    for    federal   agents   to   check   for    fingerprints).     Reyes    also
    testified that, while he did not pay Santiago for the fentanyl
    that day, the two had discussed a price of $70 per gram for the
    approximately 500 grams, or $35,000.
    Reyes, as well as federal agents working with him on the
    investigation, testified that after Santiago left, the agents
    instructed Reyes to deliver the package and wrapping to a police
    officer working on the investigation.            A fingerprint specialist
    then examined the package and found one fingerprint, but it did
    not match either Santiago or Reyes, and remained unidentified.
    The agents also instructed Reyes to text Santiago to negotiate
    payment for the fentanyl.       For the following two weeks, Reyes and
    Santiago    exchanged     numerous     text    messages   referring      to   a
    "motorbike," which Reyes testified was a coded conversation about
    the price of the fentanyl and when Reyes had to pay.
    Reyes then testified that on June 21, federal agents
    instructed him to drive to Santiago's home in Lynn, Massachusetts,
    and make a controlled payment of $5,000, which he did.                He also
    testified that agents instructed him to negotiate the purchase of
    more   fentanyl   from    Santiago,    after    which   Reyes   and   Santiago
    - 3 -
    exchanged text messages about a "scooter," which Reyes testified
    referred to fentanyl.         One week after that, on June 28, Reyes
    texted Santiago asking to meet in New Bedford, Massachusetts, to
    deliver     the   "titles,"   which   Reyes     testified   referred     to   the
    remaining $30,000 due for the fentanyl left at his home.                      When
    Santiago arrived, Reyes handed him a bag of money, after which
    Santiago drove away. A short time later, agents stopped Santiago's
    vehicle and arrested him.
    Santiago was convicted and sentenced to 180 months of
    imprisonment and ten years of supervised release.               He then filed
    this timely appeal.
    II.
    We begin with Santiago's contention that his conviction
    must   be   reversed   because   it    is     not   supported   by   sufficient
    evidence.     Our review is de novo, though we must consider the
    evidence in the light most favorable to the verdict.                 See United
    States v. Charriez-Rolón, 
    923 F.3d 45
    , 51 (1st Cir. 2019).
    Before diving into the analysis, it helps to clear some
    ground about what the government was required to prove in light of
    the underlying charge as set forth in the indictment.                That charge
    was set forth in a single count for "distribut[ing]" fentanyl in
    violation of 
    21 U.S.C. § 841
     or "possess[ing] with intent to
    distribute" fentanyl in violation of that same statute.
    - 4 -
    As Santiago asserts in connection with a challenge he
    brings to the District Court's jury instructions, "distribution"
    and "possession with intent to distribute" under § 841 can be two
    distinct crimes, as the offense of "distribution" does not require
    the element of possession, United States v. Cortés-Cabán, 
    691 F.3d 1
    , 19 (1st Cir. 2012); see also United States v. Tejada, 
    886 F.2d 483
    , 490 (1st Cir. 1989), while the offense of "possession with
    intent to distribute" does not require the element of distribution,
    Cortés-Cabán, 
    691 F.3d at 17
    .         And because "[i]t is possible --
    albeit unusual -- to be guilty of distribution of a drug without
    also possessing it with intent to distribute," United States v.
    Sepulveda, 
    102 F.3d 1313
    , 1317 (1st Cir. 1996), the offense of
    "possession with intent to distribute" is not a lesser-included
    offense    of   "distribution,"     see   Tejada,   
    886 F.2d at
    489–90
    (discussing test established in Blockburger v. United States, 
    284 U.S. 299
    , 304 (1932), for determining whether two crimes may be
    punished as independent offenses).
    Thus, we must reject Santiago's sufficiency challenge so
    long as the evidence suffices to permit a rational jury to find
    beyond a reasonable doubt that Santiago committed the offense of
    either    distributing   fentanyl    or   possessing   fentanyl    with   the
    intent to distribute it.      See Jackson v. Virginia, 
    443 U.S. 307
    ,
    318–19 (1979).     In contending that the evidence does not suffice
    to permit us to affirm his conviction for either offense, Santiago
    - 5 -
    emphasizes the lack of eye-witness testimony that he personally
    handled the fentanyl in question, the lack of a single mention of
    "fentanyl" or "drugs" in any of the phone calls or text messages
    that were introduced at trial, the fact that the fingerprint
    recovered from the package that contained the fentanyl was not
    his, and the implausibility of the notion that "Santiago suddenly
    surprised [Reyes] at his . . . home to 'front' him half a kilo of
    fentanyl that Reyes was not expecting without any down payment."
    Thus, he contends that there is no evidence in the record that
    could suffice to tie him to the fentanyl in question in a way that
    would permit his conviction based on either distributing that drug
    or possessing it with the intent to distribute it.      See United
    States v. Valerio, 
    48 F.3d 58
    , 64 (1st Cir. 1995) ("[W]e are loath
    to stack inference upon inference in order to uphold the jury's
    verdict.").
    "[I]t is well-settled," however, "that '[t]estimony from
    even just one witness can support a conviction.'"    United States
    v. Maldonado-Peña, 
    4 F.4th 1
    , 54 (1st Cir. 2021) (second alteration
    in original) (quoting United States v. Negrón-Sostre, 
    790 F.3d 295
    , 307 (1st Cir 2015)), cert. denied sub nom. Rivera-Alejandro
    v. United States, 
    142 S. Ct. 729 (2021)
    , Rivera-George v. United
    States, 
    142 S. Ct. 1184 (2022)
    , and Rivera-Alejandro v. United
    States, 
    142 S. Ct. 1185 (2022)
    .   And, here, the government called
    to the stand Reyes, who testified that Santiago visited Reyes's
    - 6 -
    home, showed Reyes the package of fentanyl in the garage, stated
    "I put it right over there," (emphasis added), and invited Reyes
    to take possession of it.
    Santiago does contend that Reyes was not credible.                 In
    support of this contention, he notes that the record shows that at
    the time of events in question Reyes had agreed to become a witness
    for the government in return for his release from prison and a
    downward departure from a ten-year sentence he otherwise expected
    to face.
    But,    "[o]ur     framework   for     reviewing    this   kind    of
    challenge means we give the government the benefit of the doubt
    and resolve any questions of witness credibility against the
    defendant."       Maldonado-Peña,     4   F.4th   at   54.       Moreover,   the
    government introduced evidence to corroborate Reyes's testimony in
    the form of the package that contained the fentanyl at issue, the
    text messages between Reyes and Santiago, and the two controlled
    payments that Santiago received from Reyes.                  See id. at 54–55
    (holding   that    evidence    was   sufficient     not   only    because    one
    witness's testimony would alone be sufficient, but also because
    additional evidence corroborated the witness's testimony).
    Thus, we conclude that Reyes's testimony provides a
    sufficient basis for a rational juror to find Santiago guilty of
    violating 
    21 U.S.C. § 841
    .            That is so because the evidence
    suffices to show that Santiago possessed fentanyl with the intent
    - 7 -
    to distribute it (based at the least on Reyes's testimony that
    Santiago had stated that he had placed the package of the fentanyl
    in Reyes's garage) and because it also suffices to show that
    Santiago   was   engaged   in    distributing     fentanyl   (given   Reyes's
    testimony regarding the series of events concerning the placing of
    that package in the garage).
    III.
    We    turn,   then,    to     Santiago's   contention,     in   the
    alternative, that his conviction must be vacated.            Here, he relies
    on various claimed trial errors.              As we will explain, none has
    merit.
    A.
    Santiago first contends that the District Court erred by
    failing to instruct the jury that to render a guilty verdict it
    must be unanimous as to whether his offense was for distributing
    the fentanyl or possessing it with the intent to distribute it.
    This contention starts from the premise -- which is entirely
    correct -- that when an indictment charges two or more distinct
    offenses in a single count, it is duplicitous, and thus raises the
    prospect of a jury finding the defendant guilty on that count
    without being unanimous as to which of the two crimes set forth in
    that count the defendant committed.            See United States v. Newell,
    
    658 F.3d 1
    , 23 (1st Cir. 2011).         This contention also rests on the
    premise -- itself entirely correct -- that a district court may
    - 8 -
    ensure this prospect does not come to pass by instructing the jury
    that, to convict the defendant based on the count set forth in the
    indictment, the jury must be unanimous in finding him guilty beyond
    a reasonable doubt of at least one of the offenses set forth in
    that charge.      See 
    id.
    In light of these premises, there is at first blush some
    force to Santiago's challenge.       The single count of which Santiago
    was convicted did combine two seemingly distinct offenses -- the
    offense of "distribution" and the offense of "possession with the
    intent    to    distribute"   --   and   so   was   duplicitous,   thereby
    threatening to undermine Santiago's right to a unanimous jury.
    See 
    id.
            Moreover, the District Court chose not to give the
    curative unanimity instruction to the jury, even though Santiago
    requested that instruction.
    Of course, the need for a curative instruction in the
    face of a duplicitous indictment only arises if at the time the
    instructions are provided there still are two possible offenses in
    play, such that a verdict of guilty by the jury on the charged
    count would not necessarily reflect a unanimous verdict of guilt
    as to either offense.         And, although possession with intent to
    distribute fentanyl is in principle a distinct offense from the
    crime of distributing fentanyl, these distinct offenses "merge"
    into a single offense when "the distribution itself is the sole
    evidence of possession, or where possession is shown to exist only
    - 9 -
    at the moment of distribution."           Sepulveda, 
    102 F.3d at 1317
    (quoting United States v. Rodriguez-Cardona, 
    924 F.2d 1148
    , 1159
    (1st Cir. 1991)).   Thus, the critical question here is whether, at
    the time the District Court declined to give the instruction on
    unanimity, those theoretically distinct offenses had merged into
    one based on what the evidence had shown.
    The government contends that the answer to that question
    here is in the affirmative, because in this case the sole evidence
    that could suffice to support the conviction for "distribution"
    --   Reyes's   testimony   --   also   ensured   that    the   offense   of
    "distribution" merged with the offense of "possession with intent
    to distribute."     And that is so, the government argues, because
    Reyes's testimony was such that both "the distribution itself [was]
    the sole evidence of possession" and the "possession [was] shown
    to exist only at the moment of distribution."           
    Id.
    Santiago disputes this merger-based ground for rejecting
    his challenge to the District Court's failure to give the requested
    unanimity instruction.     He points to the fact that the fingerprint
    recovered from the package did not match his own and that no
    witnesses testified to seeing him in possession of the fentanyl.
    He then contends, based on that feature of the record, that some
    jurors could have believed that an unknown "third party" physically
    placed the drugs in Reyes's garage.         On that reading, Santiago
    argues that some jurors could have believed that he was involved
    - 10 -
    in distributing the fentanyl at issue only by showing Reyes where
    the package was and inviting him to take possession of it without
    ever having handled it, even while other jurors also found based
    on Reyes's testimony that Santiago himself had dropped off that
    package.   Santiago contends in this regard:
    If six [jurors] thought Santiago had not possessed
    the drugs (a likely scenario given the lack of
    fingerprints,    no    actual     witness    seeing
    possession[,] and the unbelievability of any drug
    dealer 'fronting' someone half a kilo of fentanyl
    by haphazardly dropping it off at a garage), with
    six thinking he had distributed drugs without
    possessing them, through a third party for example,
    it would not be a unanimous verdict . . . ."
    (Emphases added).
    In pressing this argument, Santiago lays out a scenario
    in which the jurors would have found him guilty of distribution
    through different findings of brute facts -- with some finding him
    guilty of that offense while having possessed the fentanyl and
    others finding him guilty of that offense without finding that at
    any point he possessed the fentanyl.1 However, Santiago has failed
    1 The District Court instructed the jury that "possession"
    includes both "actual possession" and "constructive possession,"
    meaning "when a person who is not in physical control of the item
    nonetheless has both the power and the intent to exercise dominion
    and control over it."       See also United States v. García-
    Carrasquillo, 
    483 F.3d 124
    , 130 (1st Cir. 2007) ("Constructive
    possession exists when a person knowingly has the power and
    intention at a given time to exercise dominion and control over an
    object either directly or through others." (emphasis added)
    (quoting United States v. McLean, 
    409 F.3d 492
    , 501 (1st Cir.
    2005))).
    - 11 -
    to lay out a theory in which, based on this record, any juror could
    have found him guilty of "possession with intent to distribute"
    but not "distribution."         And we understand why, for we similarly
    cannot conceive of any reading of the record that would permit a
    rational jury to find him guilty of the charged count without
    unanimously     finding   him    guilty    of   at   least    the    offense   of
    "distribution."     Accordingly, this challenge fails because, by
    virtue of these two crimes having merged into a single crime in
    this case, the District Court had no cause to give a specific
    unanimity instruction, and therefore did not err in deciding not
    to give one.
    B.
    Santiago next contends that the District Court erred by
    denying his motion for a mistrial based on testimony that Agent
    Carl Rideout gave at trial while being cross-examined by Santiago's
    counsel.   The relevant exchange is as follows:
    Q: [Y]ou testified         before    in   the     grand   jury,
    correct? Yes?
    A:    Yes, yes.
    Q: And you were asked about the other [drug]
    investigations that [Reyes] was participating in,
    correct?
    A:    Yes.
    Q: All right. And [the prosecuting attorney] asked
    you, how were those going, and you said "good and
    bad"?
    - 12 -
    A:   Correct.
    Q:   Okay, what was bad about the investigations?
    A: So after the arrest of Mr. Santiago, we were
    looking at a bigger organization. The New Bedford
    and   Boston   organization   had  --   they   were
    essentially the source to Mr. Reyes before he was
    arrested. . . . After the arrest of Mr. Santiago,
    all those platforms dropped. We think they dropped
    their phones and they stopped dealing with Mr.
    Reyes, so we didn't know the connection between Mr.
    Santiago and the Boston/New Bedford-based people.
    Q:   Let's be honest. You have no connection
    whatsoever to Mr. Santiago and those other
    individuals, correct?
    A.   False.
    (Emphases added).
    In the motion for a mistrial, Santiago contended that a
    portion of Rideout's testimony during this exchange implied a
    connection between Santiago and a broader drug organization even
    though the government was not planning on introducing any evidence
    to that effect.       The motion contended that the trial had been
    irrevocably tainted, and that due to this unfair prejudice, a
    mistrial was required under the Due Process Clause of the Fifth
    Amendment to the United States Constitution.
    We review denials of a motion for mistrial for manifest
    abuse of discretion.     See United States v. Chisholm, 
    940 F.3d 119
    ,
    126 (1st Cir. 2019).         In doing so, "we consider the totality of
    the   circumstances     to    determine     whether   the   defendant   has
    demonstrated . . . clear prejudice," United States v. Trinidad-
    - 13 -
    Acosta, 
    773 F.3d 298
    , 306 (1st Cir. 2014) (quoting United States
    v. Dunbar, 
    553 F.3d 48
    , 58 (1st Cir. 2009)), while mindful that
    "the trial court has a superior point of vantage, and that it is
    only rarely -- and in extremely compelling circumstances -- that
    an appellate panel, informed by a cold record, will venture to
    reverse a trial judge's on-the-spot decision," 
    id.
     (quoting United
    States v. Freeman, 
    208 F.3d 332
    , 339 (1st Cir. 2000)).
    To carry out this review, we assess four factors: "the
    context of the improper remark, whether it was deliberate or
    accidental, the likely effect of the curative instruction, and the
    strength of the evidence against the appellant[]."   United States
    v. Cresta, 
    825 F.2d 538
    , 549–50 (1st Cir. 1987).
    The passages quoted above from Rideout's testimony, as
    well as a review of the record of the four-day trial, establish
    that the assertedly improper "comment was isolated."   
    Id. at 550
    ;
    see also United States v. Johnston, 
    784 F.2d 416
    , 424 (1st Cir.
    1986) ("The quoted remarks were the only such comments in the
    course of an eight-day trial . . . .   The limited extent of the
    comments 'makes it less likely that the minds of the jurors would
    be so influenced by such incidental statements . . . that they
    would not appraise the evidence objectively and dispassionately.'"
    (quoting United States v. Socony-Vacuum Oil Co., 
    310 U.S. 150
    , 240
    (1939))). Thus, the context of the comment, by showing the comment
    to be a "single, isolated statement" in a four-day trial, points
    - 14 -
    against a conclusion that the District Court manifestly erred here.
    See Trinidad-Acosta, 
    773 F.3d at 304, 307
     (holding same in five-
    day trial); see also United States v. Diaz, 
    494 F.3d 221
    , 227 (1st
    Cir. 2007) ("[A]fter [the improper remark], that fact was never
    mentioned again, either in the balance of [the witness's] lengthy
    testimony or in the prosecutor's closing arguments.   The isolated
    nature of the offending remark further cuts against any need for
    a mistrial.").
    Nor was the comment from Rideout that undergirds this
    challenge to the conviction one that was "deliberately elicit[ed]"
    by the prosecution "in bad faith."      Cresta, 
    825 F.2d at 550
    .
    Rather, it was elicited by Santiago's defense counsel through a
    question that he asked during his cross-examination of Rideout.
    See Trinidad-Acosta, 
    773 F.3d at
    307–08 ("It is well-established
    that when, as here, defense counsel elicits a response from a
    witness, the defense cannot then 'complain of the alleged error.'"
    (quoting Cresta, 
    825 F.2d at 552
    )).
    Santiago counters that on a pre-trial phone call, the
    prosecution told defense counsel that there was no connection
    between the first investigation and the case on trial.   But, even
    setting aside that the prosecutor disputed the contents of the
    phone call and argued that none of his representations would
    "reasonably have assured [defense counsel] that the question he
    asked of . . . Rideout would have a negative answer," we agree
    - 15 -
    with the government that any such conversation was far from a
    guarantee to defense counsel that Rideout would answer the question
    in a particular way if Rideout were asked about it.                         Thus, the
    "deliberate or accidental" factor also weighs against Santiago's
    challenge, because it was defense counsel                      who chose to seek
    testimony    on    a     matter     that    was    not   otherwise     part   of   the
    prosecution's case.
    The   factor       concerning        curative    instructions     weighs
    against this challenge as well.                   The District Court denied the
    motion but instructed the jury to ignore that portion of Rideout's
    testimony both immediately after it was elicited and again at the
    end of trial.      The District Court also struck that testimony from
    the record.        The District Court thus twice gave the sort of
    "strong, explicit cautionary instruction to completely disregard
    the   statement"       that    we   have    previously       found   "sufficient    to
    counteract    prejudice        that   may    have    flowed     from   [a   witness's
    improper] remark."            Cresta, 
    825 F.2d at 550
    ; see also Johnston,
    
    784 F.2d at 425
        ("This      explicit      instruction      addressing    the
    inadmissible evidence directly was sufficient to counteract any
    prejudice that may have flowed from [the witness]'s testimony.").
    And the District Court did so "promptly," Freeman, 
    208 F.3d at 339
    (quoting United States v. Torres, 
    162 F.3d 6
    , 12 (1st Cir. 1998)),
    such that the first curative instruction was the next thing the
    jurors heard after the improper remark and resulting sidebar.
    - 16 -
    Finally, the evidence against Santiago was strong, see
    Diaz, 
    494 F.3d at 227
     ("[S]trong independent evidence of guilt
    tends to lessen the effect of an improper comment by a witness,
    making a mistrial unnecessary."), while the witness who made the
    improper remark was not, like Reyes, a key witness in the case.
    Thus, the question of prejudice did not in this case turn on
    whether the jury could credit that witness's testimony without
    being unduly swayed by the same witness's improper remark.     See
    Cresta, 
    825 F.2d at 550
     (concluding that "[t]he evidence against
    the two defendants was very strong if the jury believed [the
    lengthy testimony of the witness who made the improper remark]").
    For these reasons, we conclude that the District Court
    did not manifestly abuse its discretion when it denied Santiago's
    motion for a mistrial.
    C.
    Santiago next argues that the District Court erred by
    permitting Reyes to testify as a lay witness under Federal Rule of
    Evidence 701.   That Rule provides that opinion testimony by a lay
    witness is admissible if it is: "(a) rationally based on the
    witness's perception; (b) helpful to clearly understanding the
    witness's testimony or to determining a fact in issue; and (c) not
    - 17 -
    based on scientific, technical, or other specialized knowledge
    . . . ."      Fed. R. Evid. 701.
    Santiago's challenge focuses on the second prong.         He
    argues that the meaning of the text messages between himself and
    Reyes "was clear" and that Reyes's testimony "was of no help in
    understanding the dialogue," therefore violating the requirement
    that the testimony be "helpful." Santiago points more specifically
    to Reyes's testimony that a message mentioning a "motorbike" was
    in fact a coded conversation about drugs.
    We review a district court's admission of evidence under
    Federal Rule of Evidence 701 for manifest abuse of discretion.
    United States v. Valdivia, 
    680 F.3d 33
    , 50 (1st Cir. 2012).
    Applying that standard here, we discern no error.
    As Santiago concedes, "it is settled beyond hope of
    contradiction that a witness with personal knowledge of slang or
    jargon commonly employed in the drug trade may, consistent with
    Rule   701,     be   allowed   to   interpret   ambiguous   language   used
    conversationally by drug traffickers."          United States v. Valbrun,
    
    877 F.3d 440
    , 443 (1st Cir. 2017).           It is also well-established
    that a participant in a conversation may give lay opinion testimony
    interpreting ambiguous statements in the conversation in which
    they participated.       See United States v. George, 
    761 F.3d 42
    , 59
    (1st Cir. 2014).
    - 18 -
    Santiago argues here that none of the messages that he
    sent to Reyes contained any ambiguities and thus that it was
    improper for Reyes to be permitted to testify about the meaning of
    the messages that he received from Santiago. For support, Santiago
    cites to an out-of-circuit case         in which the Fourth Circuit
    determined that the jury did not need help to ascertain that "a
    hundred forty five point" meant "145 grams of heroin," because
    "simply pointing to the seizure of 145 grams of heroin, and then
    the repeated mention of '145' in this [context] clearly would have
    been enough for any juror to make the connection."            United States
    v. Garcia, 
    752 F.3d 382
    , 393 (4th Cir. 2014).          Santiago contends
    that the statements contained in the text messages that he sent to
    Reyes were similarly clear in conveying their meaning, such that
    it was not proper to permit Reyes to explain what they meant to
    the jury.
    As an initial matter, we note that Garcia concerned the
    admissibility of expert witness testimony under Federal Rule of
    Evidence 702, and held that the agent's testimony on the meaning
    of   "a   hundred   forty   five    point"   was   improper    because   it
    "substituted information gleaned from her participation in the
    investigation . . . for ostensible expertise," regarding calls in
    which the agent otherwise did not participate.          
    752 F.3d at 393
    (emphasis added). Thus, Garcia does not address the Rule 701 issue
    before us here.
    - 19 -
    But, that point of precedent aside, there is a more
    fundamental problem with Santiago's challenge.        Santiago argues
    that Reyes's testimony "should have been limited to explaining the
    typical meaning of particular words . . . rather than interpreting
    the meaning and import of the conversations."           But, we have
    previously rejected exactly such an argument when an exchange
    contains a "host of ambiguities."       Valbrun, 
    877 F.3d at 444
    .   We
    explained in doing so that there is "no reason to require [a
    cooperating witness] to parse his interpretative testimony word by
    word as if he were a foreign language dictionary rather than an
    interpreter of a conversation," precisely because "the witness
    'can provide needed context to the events that were transpiring.'"
    United States v. Obiora, 
    910 F.3d 555
    , 562 (1st Cir. 2018) (quoting
    Valbrun, 
    877 F.3d at 444
    ).
    It is fatal to this challenge, therefore, that a host of
    the statements in the messages from Santiago about which Reyes
    testified were ambiguous.    Some of the statements were ambiguous
    in context because they arguably were using code, such as the
    statements referring to the sale of a "motorbike" and a "scooter."
    Valbrun, 
    877 F.3d at 444
     ("[A] knowledgeable coconspirator may be
    permitted to offer lay opinion testimony in a drug-trafficking
    prosecution 'as to the meanings of "code words" used by fellow
    conspirators in . . . conversations' in which he participated."
    (quoting United States v. Lizardo, 
    445 F.3d 73
    , 83 (1st Cir.
    - 20 -
    2006))).    Other statements were ambiguous because they used the
    word "it" in contexts in which the antecedent was hardly self-
    evident.    See Lizardo, 
    445 F.3d at
    83–84 (testimony helpful to
    interpret   references     to     "this   place"    and   "those      places"       in
    statements that otherwise "did not employ code words").
    Furthermore,       lay   opinion       testimony        regarding       an
    allegedly coded conversation is particularly appropriate when "the
    government la[ys] out an objective basis for the [witness's]
    understanding that [the defendant] knew they were speaking in coded
    terms and his impression of what [the defendant] actually meant."
    United States v. Prange, 
    771 F.3d 17
    , 28 (1st Cir. 2014).                      Here,
    the government provided such an "objective basis" not only through
    Reyes's own testimony that the conversation was coded and that no
    "motorbike" in fact existed, but also through the fact that the
    messages    were    at   times    incoherent   if     read     to    refer     to    a
    "motorbike," as well as the implausibility of believing that
    Santiago thought the conversation to be about a real "motorbike"
    when Reyes did not, given the vast number of text messages they
    exchanged and Santiago's acceptance of two large cash payments as
    a consequence of their negotiations in those messages.
    We     therefore     reject   Santiago's      argument      that    the
    District Court erred by permitting Reyes to testify as to the
    meaning of the text messages that Santiago sent him.
    - 21 -
    D.
    Santiago's remaining contention is that the District
    Court erred by allowing expert and non-expert testimony about the
    weight of the drugs that was not properly disclosed to the defense
    under Federal Rule of Criminal Procedure 16.                 This contention,
    too, is without merit.
    1.
    Because        Santiago    was     charged    under   
    21 U.S.C. § 841
    (b)(1)(A)(vi), which specifies a minimum drug weight of "400
    grams," the weight of the fentanyl was a material element of the
    offense.    Before trial, the prosecution disclosed to the defense
    in discovery that a chemist had determined that the "net weight"
    of the fentanyl without the packaging was "499 grams."                  However,
    this chemist had retired by the time of trial, and the chemist who
    would be testifying -- Vadim Astrakhan -- had only measured the
    "gross weight" of the drugs with the packaging (which he had
    determined to be 613.2 grams). At trial, the prosecution therefore
    asked Astrakhan to "estimate based on his training and experience
    . . . the weight of the packaging" and the net weight of the
    fentanyl.
    Astrakhan testified, over defense counsel's objection,
    that the weight of the packaging was "about 100 grams," and that
    the   net   weight    of    the   fentanyl     was   "[a]pproximately    half   a
    - 22 -
    kilogram."    He later stated, however, that he was "not trained to
    estimate the weights."
    The   following    morning,    the    government     informed   the
    District Court that Task Force Officer Kyle Montagano, who was on
    the   government's   witness    list,     had    weighed   the   fentanyl   the
    previous evening, and had determined that its net weight was 480
    grams.   The government also informed the District Court that it
    had disclosed that new evidence to the defense.              Thereafter, the
    government called Montagano to testify, over defense counsel's
    objection, that the net weight of the drugs was 480 grams.
    2.
    Santiago argues that the District Court erred by not
    excluding    Astrakhan's      testimony    because    the    basis   for    his
    expertise in "estimat[ing]" the weight of the packaging was not
    disclosed to the defense in violation of the "expert disclosure
    provisions" of Federal Rule of Criminal Procedure 16(a)(1)(G).
    Santiago further contends that Montagano's testimony should have
    been excluded because it was disclosed too late under the same
    rule.
    We agree with the government that Santiago has waived
    his Rule 16 objection to Astrakhan's testimony because he made no
    such objection below, see United States v. Mercado, 
    412 F.3d 243
    ,
    247 (1st Cir. 2005), and on appeal has not attempted to satisfy
    his plain-error burden, see United States v. Pabon, 
    819 F.3d 26
    ,
    - 23 -
    33 (1st Cir. 2016).2   In any event, we can discern no Rule 16 error
    because Astrakhan's testimony that the weight was "approximately
    half a kilogram" was fully within the scope of the "499 grams"
    figure disclosed to Santiago prior to trial.        See United States v.
    Lipscomb, 
    539 F.3d 32
    , 38 (1st Cir. 2008) ("Given that the defense
    had full notice of the actual opinions to which the detectives
    intended   to   testify,   we   are   unpersuaded   by   the   defendant's
    criticism [based on Rule 16] of the lack of detail regarding the
    bases for those opinions.").
    As to Montagano's testimony, regardless of whether the
    timing of the government's disclosure of this evidence could be
    characterized as a Rule 16 violation, see Fed. R. Crim. P. 16(c)
    ("A party who discovers additional evidence or material before or
    during trial must promptly disclose its existence to the other
    party or the court . . . ."), Santiago has not shown how the
    allegedly late disclosure was prejudicial, see United States v.
    Melucci, 
    888 F.2d 200
    , 203 (1st Cir. 1989) ("Without a showing of
    prejudice[] due to the late disclosure, the relief requested cannot
    2 In his reply brief, Santiago recharacterizes his argument
    regarding Astrakhan's testimony as the one he made below relying
    on Federal Rule of Evidence 702: that the District Court failed in
    its "gatekeeping function" to evaluate whether Astrakhan's
    experience weighing drugs provided a sufficient basis for him to
    estimate the weight of the packaging. But, "arguments available
    at the outset but raised for the first time in a reply brief need
    not be considered." United States v. Tosi, 
    897 F.3d 12
    , 15 (1st
    Cir. 2018).
    - 24 -
    be granted.").    In arguing otherwise, Santiago contends that
    defense counsel "had no chance to prepare cross-examination for
    Montagano, unfairly hindering his ability to test the testimony."
    However, Montagano's estimate of "480 grams" was consistent with,
    and in fact lower than, the weight of "499 grams" already disclosed
    to Santiago before trial.    And Santiago does not explain how, if
    given more time, he might have challenged Montagano's testimony.
    See United States v. Bresil, 
    767 F.3d 124
    , 128 (1st Cir. 2014)
    ("[The defendant] makes no claim that any expert could have
    materially   challenged   (or,   indeed,   challenged   at   all)   the
    technical claims upon which the testimony of the government's
    expert was based.").
    We therefore conclude that Santiago is not entitled to
    a new trial based on these alleged errors regarding the testimony
    about the weight of the fentanyl.
    IV.
    For the reasons given above, the judgment of the District
    Court is affirmed.
    - 25 -