United States v. Jorge Ramon Newball May ( 2021 )


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  •        USCA11 Case: 19-13114    Date Filed: 02/24/2021     Page: 1 of 29
    [DO NOT PUBLISH]
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE ELEVENTH CIRCUIT
    ________________________
    No. 19-13114
    Non-Argument Calendar
    ________________________
    D.C. Docket No. 8:18-cr-00594-SCB-JSS-3
    UNITED STATES OF AMERICA,
    Plaintiff - Appellee,
    versus
    JORGE RAMON NEWBALL MAY,
    CALBOT REID-DILBERT,
    RUDOLPH RANDOLPH MEIGHAN,
    Defendants - Appellants.
    ______________________
    Appeals from the United States District Court
    for the Middle District of Florida
    ________________________
    (February 24, 2021)
    Before WILSON, ROSENBAUM, and GRANT, Circuit Judges.
    PER CURIAM:
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    Jorge Ramon Newball May (“Newball May”), Calbot Reid-Dilbert (“Reid-
    Dilbert”), and Rudolph Randolph Meighan (“Meighan”) appeal their convictions
    and sentences for trafficking cocaine in international waters, in violation of the
    Maritime Drug Law Enforcement Act (“MDLEA”). See 
    46 U.S.C. § 70501
    –70508.
    The defendants were apprehended on a go-fast vessel in international waters after
    having jettisoned their cargo, which was not recovered. A jury concluded that they
    were guilty of trafficking cocaine based in part on “Ionscan” testing evidence
    showing the presence of trace amounts of cocaine on the vessel and the hands of all
    three defendants. Then, at sentencing, the district court determined a drug quantity
    in excess of 450 kilograms of cocaine, applied enhancements for obstruction of
    justice, and rejected the defendants’ requests for a minor-role reduction.
    Broadly speaking, the defendants raise four issues on appeal: (1) whether the
    admission of a certification of the U.S. State Department to establish extraterritorial
    jurisdiction under the MDLEA violated their rights under the Confrontation Clause;
    (2) whether the district court abused its discretion by admitting the Ionscan testing
    evidence at trial; (3) whether sufficient evidence supports their convictions; and
    (4) whether the district court properly calculated their guideline ranges. After
    careful review, we affirm. We address each issue in turn.
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    I. MDLEA Jurisdiction
    Newball May contends that the district court violated his rights under the
    Confrontation Clause by relying on a certification from the U.S. State Department
    to establish jurisdiction under the MDLEA. Reid-Dilbert and Meighan adopt this
    argument. We review constitutional objections de novo. United States v. Campbell,
    
    743 F.3d 802
    , 805 (11th Cir. 2014).
    The MDLEA broadly prohibits drug trafficking while on board any vessel
    “subject to the jurisdiction of the United States.” See 
    46 U.S.C. § 70503
    (a). A vessel
    subject to the jurisdiction of the United States includes a “vessel without
    nationality,” which, in turn, includes “a vessel aboard which the master or individual
    in charge makes a claim of registry and for which the claimed nation of registry does
    not affirmatively and unequivocally assert that the vessel is of its nationality.” 
    Id.
    § 70502(c)(1)(A), (d)(1)(C). A foreign nation’s consent or waiver of objection to
    United States jurisdiction is conclusively proven by a certification from the State
    Department. Id. § 70502(c)(2). Whether a vessel is subject to the jurisdiction of the
    United States “is not an element of an offense” but rather a “[j]urisdictional issue”
    that is a “preliminary question[] of law to be determined solely by the trial judge.”
    Id. § 70504(a).
    In support of its pretrial motion to establish that the defendants’ vessel was
    subject to the jurisdiction of the United States, the government introduced a
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    certification on behalf of the U.S. State Department stating that the vessel met the
    definition of a “vessel without nationality.” The district court found jurisdiction,
    overruling a defense objection based on the Confrontation Clause.
    Under binding precedent, the district court correctly found that the
    introduction of a State Department certification to establish MDLEA jurisdiction
    does not violate the Confrontation Clause. In Campbell, we held that “a pretrial
    determination of extraterritorial jurisdiction does not implicate the Confrontation
    Clause” because the MDLEA’s jurisdictional requirement is not an element of an
    offense. 743 F.3d at 806–09. Likewise, in United States v. Cruickshank, we held
    that “[a] United States Department of State certification of jurisdiction under the
    MDLEA does not implicate the Confrontation Clause because it does not affect the
    guilt or innocence of a defendant.” 
    837 F.3d 1182
    , 1192 (11th Cir. 2016).
    Defendants maintain that Campbell and Cruickshank were wrongly decided
    and that their rights to confrontation attached during the pretrial determination of
    MDLEA jurisdiction. Whatever the merits of these arguments, we must follow our
    prior precedent. See United States v. Vega-Castillo, 
    540 F.3d 1235
    , 1236 (11th Cir.
    2008) (“Under the prior precedent rule, we are bound to follow a prior binding
    precedent unless and until it is overruled by this court en banc or by the Supreme
    Court.” (quotation marks omitted)).        Accordingly, the district court properly
    determined that it had jurisdiction.
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    II. Admission of Ionscan Evidence
    Next, Newball May contends that the district court abused its discretion in
    denying the defendants’ motion to exclude evidence of the Ionscan testing at trial.
    While he concedes that the government’s expert witness was qualified to testify as
    to the results of the Ionscan testing, he asserts that the government failed to present
    evidence establishing that the testing procedure itself was the product of reliable
    scientific principles and methods. Reid-Dilbert and Meighan join this argument.
    As part of its case, the government sought to qualify an expert, Coast Guard
    Senior Chief Maritime Enforcement Specialist Steven Bomentre, to testify about the
    results of Ionscan testing that the Coast Guard conducted upon boarding the
    defendants’ go-fast vessel. Ionscan technology is designed to detect trace amounts
    of illicit materials—often amounts so small as to be imperceptible to the human eye.
    Samples, or “swipes,” are taken of areas and objects thought to contain contraband
    and then run through the Ionscan machine (here, the Ionscan 500DT), which
    interprets the samples. Ionscan testing in this case revealed trace amounts of cocaine
    on both sides of the vessel, near the cargo hold of the vessel, and on all four of the
    vessel’s crew members, including the three defendants.
    The defendants moved to exclude all Ionscan evidence, including Bomentre’s
    testimony.   After holding a hearing to assess the admissibility of the expert
    testimony, see Daubert v. Merrell Dow Pharm., 
    509 U.S. 579
     (1993), the district
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    court concluded that the Ionscan technology was sufficiently reliable under Daubert
    and that the expert testimony and Ionscan evidence was admissible. The court
    therefore denied the defendants’ motion and permitted Bomentre to testify at trial.
    We review the district court’s decisions regarding the admissibility of expert
    testimony and the reliability of an expert opinion for an abuse of discretion. United
    States v. Barton, 
    909 F.3d 1323
    , 1330 (11th Cir. 2018). “This abuse-of-discretion
    standard recognizes the range of possible conclusions the trial judge may reach, and
    thus affords the district court considerable leeway in evidentiary rulings.” 
    Id.
    (citations and quotation marks omitted). We must affirm the district court unless it
    has applied the wrong legal standard or made a clear error of judgment that resulted
    in substantial prejudice to the defendant. 
    Id.
     at 1330–31.
    Rule 702 of the Federal Rules of Evidence governs the admission of expert
    testimony. 1 Fed. R. Evid. 702. The district court is the gatekeeper for expert
    testimony and is tasked with ensuring that it is sufficiently reliable and relevant to
    1
    Rule 702 states in full as follows:
    A witness who is qualified as an expert by knowledge, skill,
    experience, training, or education may testify in the form of an
    opinion or otherwise if: (a) the expert’s scientific, technical, or other
    specialized knowledge will help the trier of fact to understand the
    evidence or to determine a fact in issue; (b) the testimony is based
    on sufficient facts or data; (c) the testimony is the product of reliable
    principles and methods; and (d) the expert has reliably applied the
    principles and methods reliably to the facts of the case.
    Fed. R. Evid. 702.
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    be considered by the jury. Kumho Tire Co., Ltd. v. Carmichael, 
    526 U.S. 137
    , 147–
    48 (1999). The Supreme Court in Daubert listed four factors for determining
    whether expert testimony is sufficiently reliable for admission under Rule 702.
    Daubert, 
    509 U.S. at
    592–94. They include (1) whether it can be and has been
    tested; (2) whether it has been subjected to peer review and publication; (3) what its
    known or potential rate of error is, and whether standards controlling its operation
    exist; and (4) whether it is generally accepted in the field. 
    Id.
    Nevertheless, the inquiry is “flexible,” and Daubert’s list of specific factors
    neither necessarily nor exclusively applies to all experts or in every case. United
    States v. Brown, 
    415 F.3d 1257
    , 1267 (11th Cir. 2005). Whether the Daubert factors
    are relevant to “assessing reliability in a given case will depend[] on the nature of
    the issue, the expert’s particular expertise, and the subject of his testimony.” 
    Id. at 1268
     (quotation marks omitted). So expert testimony that does not meet all or most
    of the Daubert factors may sometimes be admissible. 
    Id.
     In Brown, for example,
    we upheld the admission of expert testimony that met only the “general acceptance”
    Daubert factor. 
    Id.
     (explaining that the experts’ “method and conclusions were not
    quantitative or testable by the scientific method” and that the government offered no
    supporting peer-review studies, but that the court reasonably credited the experts’
    testimony that their method was “generally accepted”).
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    The defendants’ sole argument is that the government failed to offer any
    evidence showing that the Ionscan technology itself is a reliable tool for identifying
    the presence of narcotics. 2 They do not dispute that Bomentre was otherwise
    qualified to testify as an expert about Ionscan technology or to interpret the results
    from the Ionscan machine used in this case.
    Here, the district court did not abuse its discretion in denying the defendants’
    motion to exclude the Ionscan evidence at trial because it reasonably concluded that
    the Ionscan technology was sufficiently reliable for admission. At the Daubert
    hearing, the government’s expert, Bomentre, who had extensive training and
    experience with Ionscan testing, testified in relevant part that Ionscan testing was
    “generally accepted as a method of detecting trace amounts of narcotic substances
    on surfaces”; was widely used by the Coast Guard and other federal agencies,
    including at airports, the border, and the U.S. Capitol; had a published error or false-
    alarm rate of less than one percent, with false negatives more likely than false
    positives; and was supported by peer-reviewed studies showing that ion mobility
    spectrometry, the technology used by the Ionscan machine, was “highly reliable in
    detecting specifical molecules that it’s looking for.” Based on this testimony, which
    2
    We recently upheld the admission of expert testimony regarding Ionscan testing in United
    States v. Williams, 
    865 F.3d 1328
    , 1338–41 (11th Cir. 2017), which likewise involved defendants
    accused of drug trafficking on a vessel on which no drugs were recovered. But Williams is not
    controlling here because the defendants in that case, unlike the defendants here, “concede[d] that
    Ionscan technology is, in general, a reliable tool for identifying the presence of narcotics—and
    cocaine specifically—in a given location. 
    Id.
     at 1338–39.
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    suggests that the Ionscan technology has been tested, peer reviewed, has a low error
    rate, and is generally accepted, see Daubert, 
    509 U.S. at
    592–94, the district court
    reasonably concluded that the expert testimony and evidence was sufficiently
    reliable for admission under Rule 702.
    The defendants respond that Bomentre simply “regurgitate[d] the
    manufacturer’s claim that the machine had an error rate of less than 1%” but could
    not explain how that error rate was derived. But even assuming Bomentre’s
    testimony on this point could not be credited, the defendants offer no response to
    other aspects of his testimony, including that Ionscan testing and its underlying
    methodology are generally accepted in the scientific community and widely used for
    the detection of trace amounts of narcotics. See Brown, 
    415 F.3d 1267
    –68 (relying
    solely on the “general acceptance” Daubert factor to uphold the admission expert
    testimony). Given the flexible nature of the gatekeeping inquiry, the district court
    acted well within its discretion in concluding that the government met its burden of
    proving the reliability of the Ionscan testing used in this case.
    III. Sufficiency of the Evidence
    Newball May next argues that insufficient evidence supports his convictions,
    asserting that the government failed to prove that the go-fast vessel contained
    cocaine. Reid-Dilbert and Meighan adopt this argument.
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    We review de novo whether sufficient evidence in the record supports the
    jury’s verdict in a criminal trial. United States v. Wilchcombe, 
    838 F.3d 1179
    , 1188
    (11th Cir. 2016). The evidence, which we view in the light most favorable to the
    government, “must be such that a reasonable trier of fact could find that the evidence
    established guilt beyond a reasonable doubt.” 
    Id.
     (quotation marks omitted). But it
    need not exclude every reasonable hypothesis of innocence or be wholly inconsistent
    with every conclusion except guilt. United States v. Williams, 
    865 F.3d 1328
    , 1344
    (11th Cir. 2017). In reviewing the evidence, we assume that the jury made all
    credibility choices in support of the verdict, and we accept all reasonable inferences
    that tend to support the government’s case. 
    Id.
    A. Trial Evidence
    In the light most favorable to the government, the evidence offered at trial
    established as follows. On December 1, 2018, a Coast Guard airplane conducting
    counter-narcotics surveillance observed four persons on a tarp-covered go-fast
    vessel that was floating in a known drug-trafficking area about 100 miles southwest
    of Jamaica. After relaying information about the vessel to a command center, which
    contacted a nearby Canadian vessel, the HMCS Moncton, to intercept, the Coast
    Guard plane continued to surveil the go-fast vessel for approximately three hours
    from an altitude of 6,500 to 7,000 feet.
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    When the Coast Guard plane arrived in the area, the go-fast vessel began to
    move erratically, though it made no sign of distress, and Coast Guard air personnel
    saw multiple crew members on the go-fast vessel tying together and jettisoning
    groups of white, rectangular packages. None of these packages were recovered,
    although multiple Coast Guard witnesses testified that they were consistent with 20-
    kilogram packages of cocaine that they had personally recovered and handled during
    prior interdictions of similar go-fast vessels. Video footage from the Coast Guard
    plane, which depicted the crew jettisoning the packages, was played for the jury.
    Eventually, the Moncton intercepted the go-fast vessel and sent out Coast
    Guard boarding teams, which had been stationed aboard the Moncton to conduct law
    enforcement and counter-drug operations. The boarding teams found a black, 30-
    foot by 7-foot vessel that had no engines, no navigation lights, no electronic
    equipment except a cellphone, lines or ropes hanging over the side that had been cut,
    and about a dozen 55-gallon fuel drums set up so the crew could switch quickly
    between them. The two outboard engines had been removed and jettisoned along
    with the packages.
    When the boarding teams reached the go-fast vessel, Emiro Hinestroza-
    Newbbooll, whose trial was severed from the three defendants in this case, identified
    himself as the captain. He stated that the crew had departed Colombia and had been
    fishing for mahi-mahi. When questioned about their fishing gear, which was
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    nowhere in sight, the captain changed the story and stated that they had been scuba
    diving for conch shells. But they had no scuba gear, either, and produced just one
    snorkeling mask. The captain advised that they had been fishing in the area, but the
    depth of the water was roughly 1,300 feet, making conch fishing without scuba gear
    somewhat impractical. The captain further stated that the crew had jettisoned the
    conch shells when they saw the Coast Guard plane because it was illegal to fish for
    them in Colombia. The captain stated that they had been out of fuel for six days and
    had used the engines as anchors, though the lines broke. The captain also claimed
    Colombian registry, but the crew lacked required Colombian documentation
    regarding the vessel and trip.
    No quantity of drugs was found aboard the go-fast vessel, nor were any of the
    jettisoned packages recovered, as they apparently sank. In an attempt to detect the
    presence of contraband aboard the vessel, Coast Guard personnel used an Ionscan
    machine, which as we have noted, analyzes samples or “swipes” of areas or objects
    to detect tract amounts of illicit materials. Coast Guard personnel took samples from
    various parts of the vessel and from its crew and ran them through the Ionscan
    machine. Of the eighteen samples analyzed, nine tested positive for cocaine,
    including the vessel’s left and right rails and center hold and the hands of all four of
    the go-fast’s crew.
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    Following their arrests, the defendants spoke with authorities. Meighan stated
    that, before the trip, he had traveled from Belize to Colombia at the expense of
    Mexican nationals who he believed were the intended recipients of cocaine from the
    venture. He also stated that he likely tested positive for cocaine because he helped
    jettison bales from the go-fast vessel, though he denied seeing the bales before that
    time. Reid-Dilbert stated that he was offered approximately $1,500 to go on a conch-
    fishing trip. According to Reid-Dilbert, the go-fast vessel had mechanical problems
    during the trip, and they eventually used the engines as anchors. Reid-Dilbert
    recognized the jettisoned packages as cocaine bales, though he too denied knowing
    about the bales or the presence of drugs before the crew began jettisoning the
    packages. Newball May reported that the crew had dived for conch near the Serrana
    Bank, an atoll in the western Caribbean sea, before running out of fuel on the way
    to its next destination. Upon seeing what he believed to be a Colombian Coast Guard
    airplane, Newball May jettisoned the bags of conch by tying them to the two engines
    so they would sink. He said there were approximately fifteen to seventeen bags of
    conch tied to each engine.
    B. Analysis
    All three defendants were convicted of conspiracy to distribute and to possess
    with intent to distribute at least five kilograms of a substance containing cocaine
    while on board a vessel subject to the jurisdiction of the United States, in violation
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    of 
    46 U.S.C. §§ 70503
    (a)(1) and 70506(b), and of possession with intent to distribute
    at least five kilograms of a substance containing cocaine while on board a vessel
    subject to the jurisdiction of the United States, in violation of 
    46 U.S.C. §§ 70503
    (a)(1) and 70506(a).
    To convict a defendant for conspiracy, the government must prove that two
    or more persons entered into an unlawful agreement to commit an offense and that
    the defendant knowingly and voluntarily joined the conspiracy. Williams, 865 F.3d
    at 1344.     In maritime drug-trafficking cases, a jury may infer a defendant’s
    “knowledgeable, voluntary participation from presence when the presence is such
    that it would be unreasonable for anyone other than a knowledgeable participant to
    be present.” Wilchcombe, 838 F.3d at 1188 (quotation marks omitted). In making
    this determination, the jury may consider several factors, including the probable
    length of the voyage, the amount and location of the contraband, the relationship
    between captain and crew, suspicious or evasive behavior before and after
    apprehension, post-apprehension statements, and the absence of supplies or
    equipment necessary to the vessel’s intended use. Id. at 1188–89. “The government
    bears a heavier burden where the quantity of drugs is smaller; if the quantity of drugs
    is ‘large,’ the government need only prove any one of the additional factors listed
    above.” Id. at 1189.
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    To convict a defendant for possession with intent to distribute a controlled
    substance, the government must prove knowing possession and an intent to
    distribute. Williams, 865 F.3d at 1344. Possession may be actual or constructive.
    United States v. Tinoco, 
    304 F.3d 1088
    , 1123 (11th Cir. 2002). If a defendant had
    some measure of dominion or control over the contraband, either exclusively or
    together with others, he constructively possessed it. 
    Id.
    For either offense, the government must prove the identity of the drug through
    direct or circumstantial evidence. Williams, 865 F.3d at 1344. Generally, drug
    identity can be established by evidence of “lay experience based on familiarity
    through prior use, trading, or law enforcement; a high sales price; on-the-scene
    remarks by a conspirator identifying the substance as a drug; and behavior
    characteristic of sales and use, such as testing, weighing, cutting and peculiar
    ingestion.” Id. (quotation marks omitted).
    Here, the district court properly denied the defendants’ motions for judgment
    of acquittal because sufficient evidence supports their convictions. The evidence
    shows that the defendants were on board a tarp-covered go-fast vessel, outfitted with
    a dozen 55-gallon fuel drums set up so the crew could switch quickly between them,
    in a known drug-trafficking area. When the Coast Guard plane encountered the go-
    fast vessel, it began to move erratically, and Coast Guard witnesses saw the vessel’s
    crew tying together and jettisoning groups of white, rectangular packages, which
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    then apparently sank along with the vessel’s engines. While none of these packages
    were recovered, a reasonable jury could conclude from the evidence as a whole that
    the packages contained cocaine and that each of the three defendants knew of the
    cocaine and voluntarily trafficked it.
    To begin with, that no cocaine was recovered does not preclude conviction for
    cocaine trafficking. In Williams, we held that sufficient evidence supported the
    jury’s determination that jettisoned packages contained cocaine, even though no
    witness identified the jettisoned contraband as cocaine and no cocaine was
    recovered. 865 F.3d at 1344–46. We explained that the question was “whether all
    of the evidence presented by the government, taken together, permitted any
    reasonable jury to arrive at that conclusion,” not whether any single piece of
    evidence on its own sufficed. Id. at 1346. The evidence in Williams showed that
    Coast Guard witnesses had been involved in previous drug interdictions in the area
    and only cocaine had been recovered, that the packages they saw jettisoned from the
    go-fast vessel were the same size and shape as bales of cocaine seized previously,
    and that Ionscan testing revealed traces of cocaine on the vessel and on the person
    of four of the five defendants. Id. “The cumulative effect of this evidence,” we
    stated, “was enough to permit a reasonable jury to determine, beyond a reasonable
    doubt, that the substance jettisoned from the vessel was cocaine, notwithstanding the
    fact that no visible amount of cocaine was recovered by the Coast Guard.” Id.
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    The same is true here. As in Williams, multiple Coast Guard witnesses
    testified that the packages jettisoned from the go-fast vessel were consistent with 20-
    kilogram cocaine bales they had personally recovered and handled during prior
    interdictions. Likewise, Ionscan samples of the vessel and its four crew members
    tested positive for cocaine. In particular, nine Ionscan samples tested positive for
    cocaine, including from the vessel’s left and right rails and center hold and the hands
    of the crew. Along with this evidence, the jury heard testimony about post-arrest
    statements made by Meighan and Reid-Dilbert in which they admitted or did not
    dispute that there was cocaine aboard the go-fast vessel, even though they denied
    knowing about the cocaine or the packages until after the Coast Guard arrived. Reid-
    Dilbert stated that he recognized the jettisoned packages as cocaine bales, and
    Meighan stated that he likely tested positive for cocaine because he helped jettison
    bales from the go-fast vessel. Viewing this evidence as a whole, a reasonable jury
    could find beyond a reasonable doubt that the jettisoned packages contained cocaine
    in excess of five kilograms.
    The defendants claim that they presented a reasonable, alternative
    explanation—that the packages contained conch, which was considered contraband
    in Colombia—that the government failed to rebut. So in their view, the lack of
    evidence of actual cocaine dooms the case against them. They are mistaken on the
    evidence and on the law.
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    To the extent the defendants’ proffered explanation was “supported by some
    modicum of evidence, the jury was not required to return a verdict of acquittal” but
    was instead “free to choose between or among the reasonable conclusions to be
    drawn from the evidence presented at trial.” Williams, 865 F.3d at 1345–46
    (quotation marks omitted). In any event, the government’s evidence gave the jury
    good reason to discredit the defendants’ explanation. Apart from a single snorkeling
    mask, there was nothing on board the go-fast vessel to corroborate the defendants’
    claim that they had been fishing for conch or anything else. The evidence also
    tended to contradict the defendants’ post-arrest claims of experiencing engine
    problems and drifting for six days. For instance, the Coast Guard plane observed
    the go-fast vessel’s engines in operation, and the go-fast vessel’s crew gave no sign
    of distress when it saw the plane. Combined with the evidence supporting the
    presence of cocaine in the jettisoned packages, this was more than sufficient for a
    reasonable jury to reject the defendants’ explanation.
    Beyond the issue of whether the government proved the existence of cocaine
    on the go-fast vessel, the defendants compare this case to United States v. Garate-
    Vergara, 
    942 F.2d 1543
    , 1549 (11th Cir. 1991), where we vacated the convictions
    of certain defendants because the evidence did not link them to the cocaine jettisoned
    from the subject vessel. But the circumstances of that case were very different. The
    vessel in Garate-Vergara was approximately 330 feet in length with a crew of
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    thirteen, and the contraband had been thoroughly hidden, weakening the inferences
    that could be drawn about the crew’s knowledge from its presence onboard the
    vessel. See 
    id.
     (describing the large size of the vessel as the “[m]ost important” fact
    supporting acquittal).
    Here, in contrast to the situation in Garate-Vergara, the go-fast vessel was
    approximately thirty feet in length with a crew of four, it appears to have contained
    a substantial amount of cocaine and little else, and there is no evidence that the
    contraband was hidden. Plus, the defendants’ post-arrest statements indicated that
    they helped jettison the cargo, and the hands of all four crew members tested positive
    for cocaine. Given the small vessel and crew, large amount of cocaine, absence of
    fishing gear, and evidence of direct participation in jettisoning the contraband, a
    reasonable jury could infer the defendants’ knowing and voluntary participation in
    the cocaine-trafficking conspiracy, as well as their constructive possession with
    intent to distribute. See Williams, 865 F.3d at 1344; Wilchcombe, 838 F.3d at 1188;
    Tinoco, 
    304 F.3d at 1123
    .
    For these reasons, we affirm the defendants’ cocaine-trafficking convictions
    under the MDLEA.
    IV. Sentencing
    Finally, the defendants present three sentencing challenges. First, Meighan
    argues that the district court clearly erred in calculating a drug weight of 450
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    kilograms or more of cocaine. Second, Newball May contends that the court
    committed clear error by applying the U.S.S.G. § 3C1.1 enhancement for obstruction
    of justice. Finally, Reid-Dilbert challenges the court’s denial of a minor-role
    reduction.   Each defendant purports to adopt the arguments made by his
    codefendants.
    A. Drug Quantity
    We begin with drug quantity. At the defendants’ joint sentencing, the district
    court held each of the defendants responsible for 450 kilograms or more of cocaine,
    which triggered the highest base offense level of 38. See U.S.S.G. § 2D1.1(c)(1).
    Based on testimony presented at trial and at the sentencing hearing, the court found
    that the offense involved more than thirty bales of cocaine that each weighed twenty
    kilograms. The defendants maintain the court should have adopted the jury’s finding
    that the offense involved five kilograms or more of cocaine, for a base offense level
    of 30. See U.S.S.G. § 2D1.1(c)(5).
    We review for clear error the district court’s determination of the quantity of
    drugs used to establish a base offense level for sentencing purposes. United States
    v. Ruan, 
    966 F.3d 1101
    , 1171 (11th Cir. 2020). The government must establish the
    drug quantity by a preponderance of the evidence. 
    Id. at 1172
    . The district court
    must ensure the government carries this burden by presenting “reliable and specific
    evidence.” 
    Id.
     When the drug amount seized does not reflect the scale of the offense,
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    the court must approximate the drug quantity. 
    Id.
     This determination may be based
    on “fair, accurate, and conservative estimates” of the quantity attributable to a
    defendant but cannot be based on “merely speculative” calculations. 
    Id.
     (quotation
    marks omitted).
    Here, the district court did not clearly err in finding a drug quantity of 450
    kilograms or more of cocaine. The court had to approximate the amount of cocaine
    because none of it was recovered. Based on the evidence presented at trial and at
    sentencing, at least 450 kilograms was a reasonable and conservative estimate.
    A government agent testified at sentencing that the captain of the go-fast
    vessel, Hinestroza-Newbboll, stated in a post-arrest interview that there were thirty-
    eight bales of cocaine on the vessel. 3 That number was broadly consistent with
    Newball May’s statement to authorities that the go-fast crew jettisoned at least thirty
    packages (though he claimed the packages were filled with conch, not cocaine), and
    with the number of packages indicated by the surveillance footage, which the court
    viewed the day before sentencing. In addition, Coast Guard witnesses testified at
    3
    The district court properly relied on hearsay statements made by Hinestroza-Newbboll.
    Hearsay is admissible in a sentencing hearing provided it is sufficiently reliable. United States v.
    Baptiste, 
    935 F.3d 1304
    , 1315–16 (11th Cir. 2019). Here, Hinestroza-Newbboll’s hearsay
    statements about the quantity of cocaine on the go-fast vessel have sufficient “indicia of reliability”
    because they were consistent with the government’s other evidence, and the defendants provide
    no reason to discount their reliability. See 
    id.
     at 1316–17. As for the defendants’ own statements,
    these were evidence at trial and therefore properly before the court at sentencing. See United States
    v. White, 
    663 F.3d 1207
    , 1216 (11th Cir. 2011) (“The district court may base its findings of fact at
    sentencing on evidence presented at trial, undisputed statements in the PSR, and evidence
    presented at the sentence hearing.”).
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    USCA11 Case: 19-13114        Date Filed: 02/24/2021   Page: 22 of 29
    trial based on personal experience that the packages observed in the surveillance
    video were consistent with twenty-kilogram cocaine bales, which was a standard
    size in maritime cocaine trafficking.
    The record therefore supports a finding that the go-fast vessel contained at
    least thirty cocaine bales that each weighed twenty kilograms, for a total drug
    quantity of 600 kilograms, well in excess of the 450-kilogram quantity necessary to
    trigger the highest base offense level.
    B. Obstruction of Justice
    For each defendant, the district court applied a two-level enhancement for
    obstruction of justice, U.S.S.G. § 3C1.1, based on the defendants’ jettisoning of
    cocaine from the go-fast vessel upon seeing the Coast Guard plane. The defendants
    contend that this conduct could not support the enhancement because no official
    investigation or prosecution existed at that time, and because the Coast Guard had
    not yet determined that the vessel was subject to the jurisdiction of the United States.
    In evaluating the imposition of an obstruction-of-justice enhancement, we
    review de novo the district court’s interpretation and application of the Guidelines,
    and we review for clear error its underlying factual findings. United States v. Doe,
    
    661 F.3d 550
    , 565 (11th Cir. 2011).
    Under U.S.S.G. § 3C1.1, a defendant’s offense level is increased by two levels
    if the defendant willfully obstructed or impeded, or attempted to obstruct or impede,
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    USCA11 Case: 19-13114           Date Filed: 02/24/2021       Page: 23 of 29
    the administration of justice with respect to the investigation, prosecution, or
    sentencing of the instant offense and the obstructive conduct related to, among other
    things, the defendant’s offenses of conviction. U.S.S.G. § 3C1.1. According to
    § 3C1.1’s commentary, this guideline may cover obstructive conduct that occurred
    before the start of the investigation if the conduct was purposefully calculated and
    likely to thwart the investigation or prosecution of the offense. Id., cmt. n.1.
    Conduct covered by this enhancement includes “destroying or concealing or
    directing or procuring another person to destroy or conceal evidence that is material
    to an official investigation or judicial proceeding.” Id., cmt. n.4(D).4
    Here, the district court did not clearly err in finding that the defendants
    obstructed justice within the meaning of U.S.S.C. § 3C1.1. The fact that no “official
    investigation or prosecution” existed at the time the packages were jettisoned does
    not, as the defendants claim, defeat application of the enhancement.                       Rather,
    according to the commentary, the enhancement still applies “if the conduct was
    purposefully calculated, and likely, to thwart the investigation or prosecution of the
    offense of conviction.” U.S.S.G. § 3C1.1, cmt. n.1. That standard was met here.
    4
    The defendants do not claim that their destruction of evidence occurred
    “contemporaneously with arrest.” See U.S.S.G. § 3C1.1, cmt. n.4(D) (explaining that destruction
    of evidence that occurs “contemporaneously with arrest (e.g., attempting to swallow or throw away
    a controlled substance)” does not count “unless it results in a material hindrance to the official
    investigation or prosecution of the instant offense or the sentencing of the offender.”). Even if we
    assume the destruction of evidence was sufficiently contemporaneous, however, the enhancement
    for obstruction of justice would still be appropriate because the failure to recover the cocaine as
    evidence materially hindered the official investigation and prosecution. See id.
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    USCA11 Case: 19-13114       Date Filed: 02/24/2021    Page: 24 of 29
    The record reflects that, after seeing the Coast Guard plane, the defendants
    jettisoned and sank the cocaine they were transporting. The time-consuming and
    involved procedure of tying the bales to the engines and sinking them was
    purposefully calculated to thwart the investigation and prosecution by attempting to
    destroy all evidence of the crime. See United States v. Wayerski, 
    624 F.3d 1342
    ,
    1352 (11th Cir. 2010) (“The defendants’ affirmative steps to prevent law
    enforcement from detecting their illicit activity and to impede any investigation
    show that they consciously acted with the purpose of obstructing justice.”). Given
    this willfully obstructive conduct, the district court properly applied the
    enhancement.
    As for the defendants’ jurisdictional argument, they offer no legal support for
    their claim that the alleged obstructive acts are not properly before the district court
    at sentencing because they occurred before the Coast Guard determined that the
    vessel was subject to the jurisdiction of the United States. Nor do we find their
    argument persuasive. The alleged acts of obstruction are clearly relevant conduct to
    the instant offenses of conviction, over which the district court properly found
    jurisdiction. See U.S.S.G. § 1B1.3(a)(1)(A); cf. United States v. Behr, 
    93 F.3d 764
    ,
    765–66 (11th Cir. 1996) (“[D]istrict court[s] may consider criminal conduct that
    occurred outside of the statute of limitations period as relevant conduct for
    sentencing purposes.”).
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    USCA11 Case: 19-13114       Date Filed: 02/24/2021    Page: 25 of 29
    For these reasons, we affirm the § 3C1.1 enhancement for all three defendants.
    C. Minor Role Reduction
    Finally, the defendants claim that they were simply “pawn[s]” in the transport
    of the cocaine and should be granted role adjustments as minor participants. We
    review a district court’s denial of a role reduction for clear error. Cruickshank, 837
    F.3d at 1192. “Clear error review is deferential, and we will not disturb a district
    court’s findings unless we are left with a definite and firm conviction that a mistake
    has been committed.” Id. (quotation marks omitted). The defendant must prove his
    minor role in the offense by a preponderance of the evidence. Id.
    Section 3B1.2 provides for a two-level decrease to the defendant’s offense
    level if he was a “minor participant” in the criminal activity. A “minor participant”
    is someone “who is less culpable than most other participants in the criminal activity,
    but whose role could not be described as minimal.” U.S.S.G. § 3B1.2, cmt. n.5.
    In United States v. De Varon, we instructed that, in assessing a defendant’s
    role in the criminal activity, the district court should consider two principles: first,
    the defendant’s role in the relevant conduct for which he has been held accountable
    at sentencing, and second, his role as compared to that of other identifiable or
    discernible participants in the relevant conduct. 
    175 F.3d 930
    , 940 (11th Cir. 1999)
    (en banc).    Nevertheless, the fact that a defendant’s role is less than other
    25
    USCA11 Case: 19-13114       Date Filed: 02/24/2021   Page: 26 of 29
    participants’ roles in the relevant conduct may not be dispositive because it is
    possible that none of them are minor or minimal participants. 
    Id.
    The decision whether to apply a mitigating-role reduction is “based on the
    totality of the circumstances and involves a determination that is heavily dependent
    upon the facts of the particular case.” U.S.S.G. § 3B1.2, cmt. n.3(C). Section
    3B1.2’s commentary outlines a non-exhaustive list of factors relevant to determining
    the defendant’s role. See id.; see also Cruickshank, 837 F.3d at 1193 (explaining
    that the purpose of this commentary was to “further clarify the factors for a court to
    consider for a minor-role adjustment” in a way that “still continue[s] to embrace the
    approach we took in De Varon”). These factors include (a) “the degree to which the
    defendant understood the scope and structure of the criminal activity”; (b) “the
    degree to which the defendant participated in planning or organizing the criminal
    activity”; (c) “the degree to which the defendant exercised decision-making
    authority”; (d) “the nature and extent of the defendant’s participation in the
    commission of the criminal activity”; and (e) “the degree to which the defendant
    stood to benefit from the criminal activity.” Id.
    Here, based on the totality of the circumstances, the district court did not
    clearly err in denying the defendants’ request for a minor-role reduction. Under De
    Varon’s first principle, the inquiry is whether the defendant “played a relatively
    minor role in the conduct for which [he] has already been held accountable—not a
    26
    USCA11 Case: 19-13114       Date Filed: 02/24/2021    Page: 27 of 29
    minor role in any larger criminal conspiracy.” De Varon, 
    175 F.3d at 944
    . As the
    record shows, all three defendants knowingly participated in the illegal
    transportation of a large quantity of cocaine, they and their transportation roles were
    important to that scheme, and they were held accountable for that conduct only. See
    United States v. Cabezas-Montano, 
    949 F.3d 567
    , 607 (11th Cir. 2020) (considering
    these same factors in affirming the denial of a minor-role reduction).
    In addition, under De Varon’s second principle, the record supports the district
    court’s finding that none of the defendant were “less culpable than most other
    participants in the criminal activity.” U.S.S.G. § 3B1.2, cmt. n.5. While the three
    defendants appear to have had less of a role than codefendant Hinestroza-Newbboll,
    the captain of the vessel, that fact alone does not make them minor participants
    because “it is possible that none are minor or minimal participants.” De Varon, 
    175 F.3d at 944
    . The evidence supports that all three defendants helped jettison and sink
    the cocaine when the Coast Guard began surveillance. And none of the defendants
    presented evidence “to show how they were less culpable than ‘most other
    participants’ in the criminal activity,” although it was their burden to do so. See
    Cabezas-Montano, 949 F.3d at 607.
    The defendants stress that they were simply couriers in an international
    criminal organization. But under De Varon, “[t]he conduct of participants in any
    larger criminal conspiracy is irrelevant.” 
    175 F.3d at 944
    . Nor did the defendants
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    USCA11 Case: 19-13114       Date Filed: 02/24/2021     Page: 28 of 29
    submit evidence “at trial or at sentencing regarding any other co-conspirators, let
    alone anyone who recruited or trained the defendants, plotted the offense, or owned
    the drugs.” Cabezas-Montano, 949 F.3d at 607.
    We agree with the defendants to the extent that none of the foregoing facts
    made them ineligible for a minor-role reduction. See U.S.S.G. § 3B1.2, cmt. n.3(A)
    (“[A] defendant who is convicted of a drug trafficking offense, whose participation
    in that offense was limited to transporting or storing drugs and who is accountable
    under § 1B1.3 only for the quantity of drugs the defendant personally transported or
    stored may receive an adjustment under this guideline.”). And there is no evidence
    that the defendants participated in planning the criminal activity, exercised decision-
    making authority, or had much discretion in performing their courier role, which are
    relevant factors under the commentary. See id., cmt. n.3(C)(ii)–(iv).
    Nevertheless, under the totality of the circumstances, and in light of De Varon,
    we are not left with a definite and firm conviction that the district court made a
    mistake in finding that the defendants did not have a minor role in the offense. The
    court did not misapply a rule of law, and its decision was supported by the record as
    a whole. See Cruickshank, 837 F.3d at 1192. We therefore affirm the district court’s
    denial of the defendants’ request for a minor-role reduction.
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    V. Conclusion
    In sum, and for the foregoing reasons, we affirm the defendants’ convictions
    and sentences for trafficking cocaine in international waters.
    AFFIRMED.
    29