United States v. Antonio Fontana , 869 F.3d 464 ( 2017 )


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    Pursuant to Sixth Circuit I.O.P. 32.1(b)
    File Name: 17a0198p.06
    UNITED STATES COURT OF APPEALS
    FOR THE SIXTH CIRCUIT
    UNITED STATES OF AMERICA,                               ┐
    Plaintiff-Appellee,   │
    │
    >      No. 16-2208
    v.                                               │
    │
    │
    ANTONIO P. FONTANA,                                     │
    Defendant-Appellant.     │
    ┘
    Appeal from the United States District Court
    for the Eastern District of Michigan at Detroit.
    No. 2:14-cr-20141-1—David M. Lawson, District Judge.
    Decided and Filed: August 25, 2017
    Before: ROGERS, GRIFFIN, and KETHLEDGE, Circuit Judges.
    _________________
    COUNSEL
    ON BRIEF: Kenneth P. Tableman, KENNETH P. TABLEMAN, P.C., Grand Rapids,
    Michigan, for Appellant. Shane Cralle, UNITED STATES ATTORNEY’S OFFICE, Detroit,
    Michigan, for Appellee.
    _________________
    OPINION
    _________________
    ROGERS, Circuit Judge. Following extradition from Canada on twelve federal child-
    pornography-related charges, defendant Fontana pleaded guilty to four of those charges. He was
    then sentenced in a proceeding in which the sentencing judge took into account, in applying the
    applicable sentencing factors under 18 U.S.C. § 3553(a), the fact that after Fontana’s arrest,
    investigators discovered videos and images of up to fifty other women, including minors, whom
    No. 16-2208                         United States v. Fontana                               Page 2
    he had also victimized, none of whom were the basis for Fontana’s extradition. On appeal,
    Fontana challenges the district court’s consideration of the additional victims, as he did below, as
    a violation of the U.S.-Canada extradition treaty’s “specialty” requirement that he only be
    detained, tried, or punished for the crimes for which he was extradited. While an extradited
    person may defend his criminal prosecution as beyond the scope of the extradition under the
    “specialty” theory, Fontana’s challenge to his sentence fails here because the treaty does not
    preclude taking into account activity that is not the basis of the extradition in determining
    punishment for the crimes on which the extradition was based, at least as long as such
    consideration did not affect the statutory range of that punishment.
    In October 2013, Antonio Fontana lived in Pickering, Ontario. He was in his late 50s,
    married, with adult children. On the chat website Omegle.com, Fontana posed as a sixteen-year-
    old boy named “Jason,” and started talking with a fifteen-year-old minor female living in
    suburban Detroit (“Minor Victim One”). Fontana claimed that his computer’s camera was
    broken—so that Minor Victim One could not discern his age—and convinced his victim to take
    off her shirt. Without the victim’s knowledge, he recorded this act, and then used the threat of
    publishing this recording online to take over her life.         He forced her to perform more,
    increasingly invasive sexual acts, which he recorded and used as additional leverage. He forced
    her to be in front of her web camera at certain times, to sleep in a certain position so that she was
    visible to the web camera, and to ask for permission to attend social events. He forced her to
    convince a friend—a fourteen-year-old female (“Minor Victim Two”)—to perform sexual acts
    for him as well, which he also recorded and then began using to threaten the friend as well.
    Eventually, Minor Victim One began to suffer from severe depression and tried to cut off
    contact. In response, Fontana e-mailed Minor Victim One’s mother the explicit photos he had
    taken of her daughter and demanded that his victim get back in touch with him. After this threat
    was unsuccessful, Fontana e-mailed more explicit photos to the principal of Minor Victim One’s
    school and over eighty members of her church. The mother called the police, who were able to
    uncover Fontana’s true identity through the Internet.
    Ontario police arrested Fontana on February 23, 2014. By chance, at the time of his
    arrest, Fontana was online trying to coerce another minor female into performing sexual acts for
    No. 16-2208                         United States v. Fontana                               Page 3
    him. Fontana was detained in Canada pending extradition. In March 2014, a U.S. grand jury
    indicted Fontana on twelve counts arising out of his conduct towards Minor Victim One and
    Minor Victim Two. In June 2015, the Canadian government surrendered Fontana to the United
    States to stand trial for these crimes, pursuant to the extradition treaty between the two countries.
    See Treaty on Extradition between the United States of America and Canada, Can.-U.S., 27 UST
    983, Dec. 3, 1971 (“U.S.-Can. Extradition Treaty”). During the indictment and extradition
    process, investigators seized and analyzed Fontana’s computer. The computer was found to have
    over 1,000 images and multiple videos of additional women and girls, from which investigators
    determined that Fontana had engaged in similar conduct with at least fifty victims. At the time
    of Fontana’s sentencing, only a handful of these uncharged victims had been identified, but all
    were minors, and most lived in the United States.
    Once in the United States, Fontana pleaded guilty to four of the twelve counts for which
    he had been indicted: one count of coercing and enticing a minor to engage in illegal sexual
    activity, in violation of 18 U.S.C. § 2422(b); one count of producing child pornography, in
    violation of 18 U.S.C. § 2251(a); and two counts of using the internet to extort a person, in
    violation of 18 U.S.C. § 875(d).
    During sentencing, however, the issue arose as to whether to take into account Fontana’s
    other, uncharged victims. Even without consideration of his uncharged victims, Fontana’s net
    offense level was above the maximum possible under the Sentencing Guidelines, such that the
    guidelines recommended incarceration for life. Nevertheless, the Government argued that the
    district court should consider the uncharged victims under the 18 U.S.C § 3553(a) factors,
    apparently in response to Fontana’s request for a downward variance outside his Guidelines
    range.
    Fontana objected, arguing that the district court’s consideration of the uncharged victims
    violated a provision of the U.S.-Canada extradition treaty providing that: “[a] person extradited
    under the present treaty shall not be detained, tried or punished in the territory of the requesting
    state for an offense other than that for which extradition has been granted.” U.S.-Can. Extradition
    Treaty art. 12(1) (emphasis added). This provision of the treaty incorporates what is known as
    the rule of specialty, which provides that “a person who has been brought within the jurisdiction
    No. 16-2208                         United States v. Fontana                                Page 4
    of the court by virtue of proceedings under an extradition treaty, can only be tried for one of the
    offences described in that treaty, and for the offence with which he is charged in the proceedings
    for his extradition.” United States v. Rauscher, 
    119 U.S. 407
    , 430 (1886).
    The district court, however, overruled Fontana’s objection and held that it could consider
    his uncharged victims in sentencing him. In reaching this conclusion, the district court relied
    primarily on an Eighth Circuit case, United States v. Lomeli, 
    596 F.3d 496
    , 502–03 (8th Cir.
    2010), which applied an extradition treaty with Mexico which, like the extradition treaty with
    Canada at issue in Fontana’s case, held that an extradited person could not be “detained, tried or
    punished” for a separate crime.      In particular, the district court found persuasive Lomeli’s
    reasoning that the traditions and procedures of the receiving nation’s courts were relevant for
    determining the intent of the treaty parties in drafting the extradition treaty, and that “[g]iven the
    long-standing practice of United States courts of considering relevant, uncharged evidence at
    sentencing,” 
    Lomeli, 596 F.3d at 502
    (quotation marks omitted), it would be difficult to conclude
    that Mexico did not intend for an extradited defendant to face sentencing enhancements for
    uncharged crimes. The district court also considered this circuit’s prior precedent in United
    States v. Garrido-Santana, 
    360 F.3d 565
    , 578 (6th Cir. 2004), but ultimately suggested that the
    case might be distinguishable based on the different treaty language: the U.S.-Dominican
    Republic treaty provision in Garrido-Santana held only that “no [extradited] person shall be
    tried” for a separate offense, while the U.S.-Canada treaty at issue in Fontana’s case held that
    “[a] person extradited . . . shall not be detained, tried, or punished.” After concluding that
    consideration of Fontana’s uncharged victims would not violate the rule of specialty, the court
    presumably considered these victims in Fontana’s sentence. Nevertheless, the court did grant
    Fontana a downward variance and sentenced him to 360 months’ incarceration rather than the
    guidelines recommendation of life. Fontana now appeals.
    The district court did not violate the rule of specialty by considering Fontana’s other
    victims in sentencing for the crimes for which he was extradited.
    As an initial matter, we reject the Government’s suggestion that Fontana lacks standing to
    make objections to his criminal prosecution on the basis of the treaty provisions incorporating
    the doctrine of specialty. The seminal case involving the specialty doctrine, the Supreme Court’s
    No. 16-2208                         United States v. Fontana                               Page 5
    case of United States v. Rauscher, 
    119 U.S. 407
    (1886), is flatly inconsistent with such a
    conclusion. In Rauscher, Great Britain surrendered a sailor to the United States pursuant to an
    extradition treaty with a specialty provision, so that the sailor could stand trial for murder on the
    high seas. 
    Id. at 409.
    Once in the United States, however, the sailor was indicted not for murder,
    but for the separate crime of “cruel and unusual punishment.” 
    Id. In response,
    the defendant
    brought a plea to the jurisdiction of the court, arguing that he could not be indicted for cruel and
    unusual punishment when he had been extradited for murder. 
    Id. The trial
    court overruled the
    defendant’s plea, but the Supreme Court held that this was error, articulating the rule that “a
    person who has been brought within the jurisdiction of the court, by virtue of proceedings under
    an extradition treaty, can only be tried for one of the offences described in that treaty.” 
    Id. at 430.
    While Rauscher is an old case, it was described with approval in United States v.
    Alvarez-Machain, 
    504 U.S. 655
    , 659–60 (1992), and it is still good law: an extradited criminal
    defendant may not be tried for crimes not the basis for extradition, absent waiver by the treaty
    partner, when such is the intent of the treaty, and relief under such a treaty obligation can be
    obtained at the behest of counsel for the defendant in the criminal proceeding. This conclusion is
    supported by holdings of at least four of our sister circuits. See United States v. Puentes, 
    50 F.3d 1567
    , 1572 (11th Cir. 1995); United States v. Andonian, 
    29 F.3d 1432
    , 1435 (9th Cir. 1994);
    United States v. Levy, 
    905 F.2d 326
    , 328 n.1 (10th Cir. 1990); United States v. Thirion, 
    813 F.2d 146
    , 151 n.5 (8th Cir. 1987).
    The Eleventh Circuit’s reasoning in Puentes is particularly compelling:
    Of course, the rights conferred under the contract ultimately belong to the
    contracting parties, the signatory nations. This does not mean, however, that
    provisions of the contract may not confer certain rights under the contract on a
    non-party who is the object of the contract. See generally Rauscher. We believe
    that Rauscher clearly confers such a right on the extradited defendant.
    The extradited individual’s rights, however, need not be cast in stone; rather, the
    individual may enjoy these protections only at the sufferance of the requested
    nation. The individual’s rights are derivative of the rights of the requested nation.
    We believe that Rauscher demonstrates that even in the absence of a protest from
    the requested state, an individual extradited pursuant to a treaty has standing to
    challenge the court’s personal jurisdiction under the rule of specialty. The courts
    which have adopted the contrary holding, in effect, consider the requested state’s
    No. 16-2208                       United States v. Fontana                               Page 6
    objection to be a condition precedent to the individual’s ability to raise the claim.
    We believe the Supreme Court’s recent opinion in United States v. Alvarez-
    Machain, 
    504 U.S. 655
    , 
    112 S. Ct. 2188
    , 
    119 L. Ed. 2d 441
    (1992) seriously
    undermines any vitality that approach may have once possessed.
    A grand jury indicted Humberto Alvarez-Machain, a citizen and resident
    of Mexico, for participating in the kidnap and murder of United States Drug
    Enforcement Administration (DEA) special agent Enrique Camarena-Salazar.
    Following unsuccessful informal negotiations between the United States and
    Mexico to obtain Alvarez-Machain’s presence in this country, DEA successfully
    contracted with certain individuals for Alvarez-Machain’s forcible kidnap and
    delivery to the United States. Alvarez-Machain contested the district court’s
    personal jurisdiction over him on the grounds that his abduction violated the
    extradition treaty between the United States and Mexico. The district court
    granted his request and ordered his return to Mexico. The court of appeals
    affirmed the district court. The Supreme Court reversed.
    The actual holding of the case is that Alvarez-Machain could not contest
    the court’s jurisdiction over him under the extradition treaty because he was not
    extradited pursuant to treaty proceedings. See Ker v. Illinois, 
    119 U.S. 436
    , 7 S.
    Ct. 225, 
    30 L. Ed. 421
    (1886). The Court’s analysis, however, rejects the premise
    underlying the cases that require the requested nation to object as a condition
    precedent to the individual’s ability to claim the benefits of the rule of specialty.
    In Alvarez-Machain, the Court rejected the Court of Appeals’s reasoning
    that found that the extradition treaty prohibited forcible abduction, but that the
    abducted individual could only raise the issue if the offended government had
    formally protested. In rejecting the notion of conditionally self-executing treaty
    provisions, the Court explained that “if the [e]xtradition [t]reaty has the force of
    law . . . it would appear that a court must enforce it on behalf of an individual
    regardless of the offensiveness of the practice of one nation to the other nation.”
    
    Alvarez-Machain, 504 U.S. at 667
    , 112 S. Ct. at 
    2195–96, 119 L. Ed. 2d at 454
         (emphasis added). Importantly, the Court cited Rauscher in support of this
    proposition:
    In Rauscher, the Court noted that Great Britain had taken the
    position in other cases that the Webster-Ashburton Treaty included the
    doctrine of specialty, but no importance was attached to whether or not
    Great Britain had protested the prosecution of Rauscher for the crime of
    cruel and unusual punishment as opposed to murder.
    
    Alvarez-Machain, 504 U.S. at 667
    , 112 S. Ct. at 
    2195, 119 L. Ed. 2d at 454
         (emphasis added). Alvarez-Machain demonstrates the infirmity in the reasoning of
    those cases which require an affirmative protest by the requested nation in order
    for the extradited individual to contest personal jurisdiction under the rule of
    specialty.
    No. 16-2208                          United States v. Fontana                              Page 7
    We, therefore, hold that an individual extradited pursuant to an extradition
    treaty has standing under the doctrine of specialty to raise any objections which
    the requested nation might have asserted. The extradited individual, however,
    enjoys this right at the sufferance of the requested nation. As a sovereign, the
    requested nation may waive its right to object to a treaty violation and thereby
    deny the defendant standing to object to such an action.
    
    Puentes, 50 F.3d at 1574
    –75 (footnote omitted). This analysis is correct.
    To be sure, a Third Circuit case, on the other hand, has stated that “[h]ad [the habeas
    petitioner] brought suit invoking . . . the Rule of Specialty, she would lack standing.” United
    States ex rel. Saroop v. Garcia, 
    109 F.3d 165
    , 168 (3d Cir. 1997). This was pure dictum, as the
    court made clear that the petitioner in that case did not invoke the specialty principle. 
    Id. at n.6.
    Cases cited by the Saroop court in this connection moreover involved foreign government
    consent to limit the international specialty obligation, e.g., United States v. Riviere, 
    924 F.2d 1289
    , 1298–1301 (3d Cir. 1991), Leighnor v. Turner, 
    884 F.2d 385
    , 390 (8th Cir. 1989), or did
    not involve the principle of specialty at all.
    Two other cases sometimes cited for the presence of a circuit split on the issue involved
    extradition proceedings in the United States and assertions that a foreign state might not comply
    with its specialty obligations to the United States, not whether a defendant who had been
    extradited to the United States can rely on United States—like Rauscher and Fontana—
    obligations under the specialty principle. Shapiro v. Ferrandina, 
    478 F.2d 894
    , 906 (2d Cir.
    1973); Demjanjuk v. Petrovsky, 
    776 F.2d 571
    , 584 (6th Cir. 1985), vacated on other grounds, 
    10 F.3d 338
    (6th Cir. 1993). Shapiro, for instance, noted that Rauscher need not necessarily apply
    in that “converse 
    situation.” 478 F.2d at 906
    . Similarly, our decision in Demjanjuk also
    involved such a converse situation and included language regarding specialty which was in any
    event clearly 
    dictum. 776 F.2d at 584
    .
    The Government’s brief in this case appears to be fishing for a holding that the principle
    of specialty cannot be raised by criminal defendants, without actually making the argument for
    our consideration, and without instilling any confidence that the Government would defend such
    a holding should certiorari be granted. The Government moreover points to no court of appeals
    that squarely holds that criminal defendants in the United States are without standing to assert
    No. 16-2208                        United States v. Fontana                               Page 8
    the specialty principle. With such a wispy basis for deciding contrary to iconic Supreme Court
    precedent, there is no reason for this court to continue to preserve the possibility of such an
    argument.
    Accordingly, we proceed to the merits of Fontana’s specialty argument. His argument
    fails because Fontana is being “punished” quite literally for crimes for which he was extradited.
    The fact that other crimes he has committed may affect the extent of the punishment for the
    extradition-based crimes does not in ordinary English mean that he is being punished for the
    other crimes.
    This conclusion is supported by our decision in United States v. Garrido-Santana,
    
    360 F.3d 565
    , 578 (6th Cir. 2004). In Garrido-Santana, the Dominican Republic surrendered a
    defendant for possession of cocaine with intent to distribute. 
    Id. at 568.
    After the extradition,
    the defendant was also indicted on a charge arising out of his failure to appear at a pre-
    extradition arraignment, but this charge was later dropped because it was not an offense for
    which the defendant had been extradited. 
    Id. at 568,
    577. Nevertheless, the district court relied
    on this failure to appear at his arraignment to enhance the defendant’s Guidelines calculation,
    which was the basis of the defendant’s specialty challenge. 
    Id. at 568.
    Garrido claimed that his
    sentencing enhancement for an uncharged failure-to-appear offense violated the relevant
    extradition treaty’s “implicit promise that [the United States] would . . . not punish [the]
    defendant for the failure-to-appear offense.” 
    Id. at 577.
    However, we determined that the
    district court’s use of the uncharged offense “did not constitute ‘punishment’ for that conduct so
    as to violate any implicit proscription against such punishment in the extradition treaty.” 
    Id. at 578.
    In reaching this determination, we relied in part on Witte v. United States, in which the
    Supreme Court held “that use of evidence of related criminal conduct to enhance a defendant’s
    sentence for a separate crime within the authorized statutory limits does not constitute
    punishment for that conduct within the meaning of the Double Jeopardy Clause.” See 
    id. at 577–
    78 (citing Witte v. United States, 
    515 U.S. 389
    , 399 (1995)). While we recognized that Witte was
    a double jeopardy case, we noted that “its underlying analytical foundation and, in particular, its
    conception of ‘punishment’ is nevertheless instructive.” 
    Id. at 578.
    Applying this reasoning and
    holding from Garrido-Santana, it is clear that the district court’s consideration of Fontana’s
    No. 16-2208                        United States v. Fontana                                Page 9
    uncharged but related conduct did not constitute “punish[ment]” within the meaning of the U.S.-
    Canada extradition treaty, but only an appropriate consideration in determining the sentence for
    the crimes for which Fontana was properly extradited. Therefore, as in Garrido-Santana, the
    consideration of Fontana’s uncharged victims in determining his sentence does not violate the
    rule of specialty.
    Also relevant here is the Eighth Circuit’s analysis of similar questions of punishment and
    sentencing in 
    Lomeli, 596 F.3d at 503
    , and 
    Leighnor, 884 F.2d at 390
    . As the district court
    noted, the Lomeli court reasoned that a sentencing enhancement for uncharged crimes did not
    violate the rule of specialty in that case because traditions and procedures of the receiving
    nation’s courts were relevant for determining the intent of the treaty parties in drafting the
    extradition treaty, and that “[g]iven the long-standing practice of United States courts of
    considering relevant, uncharged evidence at sentencing,” 
    Lomeli, 596 F.3d at 502
    (quotation
    marks omitted), it would be difficult to conclude that Mexico did not intend for an extradited
    defendant to face sentencing enhancements for uncharged crimes. Similarly, the Leighnor court
    reasoned that “the specialty principle generally prohibits indiscriminate prosecution by the
    receiving government,” such that specialty was not violated when the United States convicted a
    defendant for only the crimes that were the subject of his indictment but took into account other
    conduct in making parole decisions. 
    Leighnor, 884 F.2d at 390
    (quotation marks and emphasis
    omitted). The analysis in both cases is correct.
    Fontana makes two arguments to resist this conclusion, but neither is persuasive.
    First, Fontana argues that this court should not follow Garrido-Santana because Witte,
    the Supreme Court case upon which it relied, was limited by subsequent Supreme Court
    decisions.   Fontana points to two cases in particular that affected courts’ consideration of
    uncharged facts to enhance a sentence: Apprendi v. New Jersey, 
    530 U.S. 466
    (2000) and Alleyne
    v. United States, 
    133 S. Ct. 2151
    (2013). In Apprendi, the Court held that a jury must find
    beyond a reasonable doubt a fact that increases the penalty for a crime beyond the statutory
    
    maximum. 530 U.S. at 490
    . Similarly, in Alleyne v. United States, the court held that a jury
    must find beyond a reasonable doubt any fact that triggers a statutory mandatory minimum
    
    sentence. 133 S. Ct. at 2158
    . Fontana also points to two cases that affected the Guidelines:
    No. 16-2208                        United States v. Fontana                              Page 10
    United States v. Booker, 
    543 U.S. 220
    , 245 (2005) and Peugh v. United States, 
    133 S. Ct. 2072
    ,
    2078 (2012). Booker rendered the Guidelines advisory rather than 
    mandatory, 543 U.S. at 245
    ;
    Peugh held that an ex post facto violation occurs “when a defendant is sentenced under
    Guidelines promulgated after he committed his criminal acts and the new version provides a
    higher applicable Guidelines sentencing range than the version in place at the time of the
    
    offense,” 133 S. Ct. at 2078
    .
    Contrary to Fontana’s argument, none of the cases he cites affects the reasoning from
    Witte upon which Garrido-Santana relied. Witte held that using related criminal conduct to
    enhance a defendant’s sentence “within the authorized statutory limits” does not constitute
    “punishment” for double jeopardy 
    purposes. 515 U.S. at 399
    (emphasis added). Fontana’s
    sentence was within the authorized statutory limits for his crimes; in fact, his sentence of
    360 months in prison was below his guidelines range of life. This alone means that neither
    Apprendi nor Alleyne affects the relevance of Witte’s reasoning as applied to Fontana’s case via
    Garrido-Santana. Booker and Peugh are even less on point.
    Fontana also seeks to distinguish the treaty provision at issue in Garrido-Santana from
    the one in his case. In Garrido-Santana, we considered a provision from the U.S.-Dominican
    Republic extradition treaty holding that “[n]o person shall be tried for any crime or offence other
    than that for which he was 
    surrendered.” 360 F.3d at 577
    (citing Convention for the Mutual
    Extradition of Fugitives from Justice, U.S-Dom. Rep., June 19, 1909, 36 Stat. 2468). Here, the
    relevant provision from the U.S.-Canada extradition treaty holds that “[a] person extradited
    under the present treaty shall not be detained, tried or punished in the territory of the requesting
    state for an offense other than that for which extradition has been granted.”            U.S.-Can.
    Extradition Treaty art. 12(1) (emphasis added). According to Fontana, the language in these
    treaties makes them distinguishable, because the U.S.-Dominican Republic treaty “lacked an
    express agreement not to punish the defendant for conduct other than the conduct for which he
    was extradited.”
    However, the reasoning of Garrido-Santana forecloses this argument. Although the
    extradition treaty in Garrido-Santana did not contain the word “punishment,” the court assumed
    without deciding that the treaty did contain an “implicit promise” not to punish the extradited
    No. 16-2208                         United States v. Fontana                           Page 11
    individual for his uncharged 
    crimes. 360 F.3d at 577
    . We still concluded that the district court’s
    consideration of the defendant’s uncharged crime did not constitute “punishment” under the
    treaty. 
    Id. Fontana thus
    cannot distinguish Garrido-Santana, because it addressed the very issue
    he raises. Furthermore, as noted above, we also find persuasive the Eighth Circuit’s analysis in
    Lomeli, which considered an extradition treaty that does contain the punishment language at
    issue here, but nevertheless concluded that the doctrine of specialty does not prohibit a district
    court from considering a defendant’s criminal history to determine his advisory Sentencing
    Guidelines range. See 
    Lomeli, 596 F.3d at 503
    .
    Finally, Fontana moves to file a supplemental pro se brief arguing that his conviction
    should be reversed and remanded to allow him to present a defense to the jury that one of the
    victims told him that she was nineteen years old, which he alleges he reasonably believed. We
    deny Fontana’s motion. A defendant must present a single brief, not two. Fed. R. App. P. 31(a);
    United States v. Montgomery, 592 F. App’x 411, 415 (6th Cir. 2014). This means that we may
    properly decline to consider pro se claims brought by a defendant represented by counsel on
    appeal.     United States v. Williams, 
    641 F.3d 758
    , 770 (6th Cir. 2011).          There are no
    circumstances justifying consideration of Fontana’s supplemental brief here.        Among other
    things, Fontana’s reasonable-mistake-of-age defense attacks his conviction and not his sentence,
    and he unequivocally waived “any right to appeal his conviction” in his plea agreement. Such a
    waiver is enforceable so long as it was made knowingly and voluntarily, United States v. Toth,
    
    668 F.3d 374
    , 377 (6th Cir. 2012), as was the case here. At Fontana’s plea colloquy, the district
    court explained the waiver, and Fontana acknowledged that he understood.            Furthermore,
    Fontana’s pro se brief does not address why this waiver was not made knowingly and
    voluntarily, or even address the issue of waiver at all.
    For the reasons set forth above, the judgment of the district court is affirmed and
    Fontana’s motion to file a supplemental pro se brief is denied.