United States v. William A. Goldstein ( 2021 )


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  •         USCA11 Case: 18-13321    Date Filed: 02/26/2021    Page: 1 of 51
    [PUBLISH]
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE ELEVENTH CIRCUIT
    ________________________
    No. 18-13321
    ________________________
    D.C. Docket No. 1:15-cr-00022-LMM-JFK-2
    UNITED STATES OF AMERICA,
    Plaintiff-Appellee,
    versus
    WILLIAM A. GOLDSTEIN,
    MARC BERCOON,
    Defendants-Appellants.
    ________________________
    Appeals from the United States District Court
    for the Northern District of Georgia
    ________________________
    (February 26, 2021)
    Before WILSON, BRANCH, and JULIE CARNES, Circuit Judges.
    JULIE CARNES, Circuit Judge:
    USCA11 Case: 18-13321       Date Filed: 02/26/2021    Page: 2 of 51
    Defendants William Goldstein and Marc Bercoon found themselves facing a
    19-count indictment for conspiracy, mail fraud, wire fraud, securities fraud, and
    money laundering after profiting handsomely from a market-manipulation scheme
    involving shares of MedCareers Group, Inc. (“MCGI”) and a scheme to defraud
    investors in Find.com Acquisition, Inc. (“Find.com”). The 19 counts were whittled
    down to 13 during the course of the proceedings. After a ten-day trial, a jury found
    Defendants guilty on 12 of the 13 counts, acquitting Defendants on the one
    remaining charge of money laundering but convicting them on two counts of
    conspiracy, two counts of mail fraud, seven counts of wire fraud, and one count of
    securities fraud.
    Defendants now appeal their convictions, arguing that the district court erred
    in (1) denying their motions to suppress evidence obtained from wiretaps,
    (2) denying an evidentiary hearing concerning alleged omissions from a wiretap
    affidavit, (3) ruling that the trial evidence did not materially vary from the
    indictment, and (4) entering a $1.9 million forfeiture order against both
    Defendants. Separately, Defendant Bercoon argues that the Government engaged
    in prosecutorial misconduct by mischaracterizing the evidence during closing
    arguments, as well as before the grand jury. And Defendant Goldstein argues that
    the district court erred (1) in denying his motion to suppress statements he made
    during an informal telephone interview with an attorney from the Securities and
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    Exchange Commission (“SEC”) and (2) in denying an evidentiary hearing as to
    whether the SEC’s civil investigation and the U.S. Attorney’s criminal
    investigation improperly merged. We find Defendants’ arguments unpersuasive
    and affirm the decisions below.
    I.    BACKGROUND
    Defendants’ convictions arise from two fraud schemes. The first was a
    “pump and dump” market-manipulation operation in March and May of 2010,
    which involved MCGI’s publicly traded stock. Defendants executed a plan to
    artificially inflate the price of MCGI stock (i.e., “pump” the stock) by obtaining
    control of shares, promoting the stock with mass emails and misleading press
    releases, and making numerous small trades to generate interest. Then, Defendants
    profited by selling the artificially inflated shares (i.e., by “dumping” the stock).
    The second scheme involved a plan to sell shares of the privately traded company
    Find.com via misleading and fraudulent representations. Defendants provided
    potential investors with written materials—including a “Confidential Investor
    Information” sheet and a “Confidential Private Placement Memorandum”—falsely
    stating that five million shares of Find.com were being offered at $1.00 per share
    and that the proceeds (minus a selling commission of 12.5 cents per share) would
    be reinvested in the business. In fact, however, shares of Find.com had been sold
    for less than $1.00 each, sales commissions were higher than 12.5 cents per share,
    3
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    and Defendants used the investment proceeds for their own benefit rather than
    investing them in the business.
    A.      The SEC’s Investigation and Interview of Goldstein
    The Atlanta SEC office started investigating Defendants’ manipulative
    trades of MCGI stock in the spring of 2010. On June 30, 2010, Atlanta SEC
    attorney Natalie Brunson called Goldstein for an informal interview in connection
    with the investigation. By the time of trial in this case, Brunson no longer recalled
    her discussion with Goldstein, but her notes regarding the conversation reflected
    that Goldstein said he had received no compensation or shares from MCGI and he
    did not know whether Peter Veugeler, a co-conspirator in the MCGI scheme, was
    associated with MCGI. 1 Testimony at trial showed that Goldstein’s statements
    were untrue.
    After the June 30 call, Brunson sent Goldstein a follow-up letter enclosing a
    copy of SEC Form 1662. The letter thanked Goldstein for “taking time today to
    speak . . . voluntarily, about [his] relationship with [MCGI]” and stated, “As I
    explained, this inquiry is nonpublic and confidential.” Form 1662 provided
    information about a witness’s rights, including the right to refuse to speak to the
    SEC, the right to contact an attorney, and the penalties for providing false
    1
    Veugeler was originally charged as a participant in the MCGI stock manipulation scheme, but
    he pled guilty and testified against Goldstein and Bercoon at trial.
    4
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    information. It also provided information about the routine uses of information
    gathered by the SEC during an informal investigation, stating that the SEC “often
    makes its files available to other governmental agencies, particularly United States
    Attorneys,” and that information supplied by a witness “will be made available to
    such agencies where appropriate.”
    B.     The FBI’s Investigation and Wiretap Affidavits
    Brunson shared her notes with the Atlanta U.S. Attorney’s Office, which
    began a criminal investigation into the MCGI scheme in August 2010. Two
    confidential sources, CS-1 (Marc Rosenberg) and CS-2 (Alan Weiner), provided
    the FBI information during the initial investigation. 2 Rosenberg was Goldstein’s
    personal assistant and worked for Goldstein and Bercoon for many years prior to
    the MCGI scheme. He told FBI agents that Bercoon had instructed him to open
    brokerage accounts to trade MCGI stock and to open a bank account in the name of
    HMRZ Consulting, LLC (“HMRZ”). Defendants controlled the trading in
    Rosenberg’s brokerage accounts, and they transferred proceeds from the sale of
    MCGI stock into the HMRZ bank account and their personal bank accounts.
    In July 2010, Rosenberg discovered that he had incurred a substantial tax
    liability as a result of Defendants using his brokerage accounts to execute MCGI
    trades. Shortly thereafter, he retained a lawyer and agreed to cooperate with the
    2
    Rosenberg and Weiner testified against Defendants at trial.
    5
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    FBI in the MCGI investigation. In recorded phone conversations in February,
    April, and May 2011, Rosenberg told Bercoon about his tax liability, and Bercoon
    tacitly acknowledged both that Defendants had used Rosenberg’s accounts to trade
    MCGI stock and that they were responsible for Rosenberg’s taxes.
    CS-2 (Weiner) began working for Goldstein in 2009. In the summer of
    2009, Weiner traveled to Florida with Goldstein to meet David and Donna Levy,
    two well-known stock promoters.3 Weiner reported that after this meeting, and on
    the advice of David Levy, Goldstein purchased a shell company that became
    MCGI. David Levy then introduced Goldstein to Peter Veugeler to promote
    MCGI’s launch and used third party Eric Cusimano 4 to send email blasts to
    thousands of potential investors.
    Weiner traveled with Goldstein to Florida to meet Veugeler in March 2010.
    During this trip, and with Weiner present, Goldstein and Veugeler spent several
    days trading MCGI stock, with Goldstein using Rosenberg’s brokerage accounts.
    Weiner again accompanied Goldstein to meet Veugeler in Florida in May 2010,
    when the two traded MCGI stock a second time. This time, Veugeler told Weiner
    and Goldstein that, earlier that day, he had been served with an SEC civil
    3
    Donna Levy was under indictment in New York for fraud and money laundering when she met
    with Goldstein and Weiner.
    4
    Cusimano is another co-conspirator who pled guilty and testified against Defendants at trial.
    6
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    complaint alleging market manipulation in a similar but unrelated scheme.
    Nevertheless, Goldstein and Veugeler proceeded to trade MCGI stock,
    coordinating their trades with Levy and Cusimano’s press releases and marketing
    emails.
    In addition to the information that Rosenberg and Weiner provided, the FBI
    obtained data from the SEC that showed the trading volume and price of MCGI
    shares between January 25, 2010 and April 8, 2011. The FBI’s analysis of the data
    corroborated the information provided by Rosenberg and Weiner concerning the
    March and May 2010 market manipulations.
    Finally, the FBI obtained information suggesting that Defendants engaged in
    another market manipulation of MCGI stock in late March 2011. On March 28,
    2011, Hotstocked.com, a Bulgarian website that reported on penny stock
    manipulations, announced that MCGI was starting a new promotional campaign.
    Trading data during the relevant timeframe corroborated this reporting, showing
    that on March 28, 2011 MCGI’s price increased by 108% and its trading volume
    increased by more than 8,000%. The reporting was further corroborated by
    telephone records showing a high volume of contacts between Goldstein, Bercoon,
    and Veugeler during the last week of March 2011, as well as numerous contacts
    around the same time between Goldstein and Gerard Adams, the target of another
    SEC “pump and dump” investigation.
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    After gathering the above information, the Government applied for and
    obtained four Title III wiretap orders authorizing agents to intercept calls on
    phones used by Bercoon and Veugeler. The orders were dated June 24, July 26,
    August 25, and October 3, 2011. Special Agent R. Wallace Taylor, Jr. submitted
    affidavits in support of the wiretap applications, and each application was granted
    by a different district court judge.
    Agent Taylor’s affidavit in support of the June 24, 2011 wiretap application
    explained that the FBI was investigating Bercoon, Goldstein, Veugeler, and others
    for participating in a market-manipulation conspiracy involving MCGI stock.
    Taylor disclosed in the affidavit that the facts asserted therein were based in part
    on the SEC’s ongoing civil investigation of the market manipulation, including
    trading data provided by the SEC, and that the FBI and the SEC had “participated
    in joint interviews with cooperating witnesses.” He also referenced a civil suit
    filed by the SEC against Bercoon and Goldstein in Los Angeles, which concerned
    a different stock fraud related to the company LADP Acquisitions, Inc. (“LADP”).
    Taylor asserted in the affidavit that there was probable cause to believe the
    wiretap requested by the Government would uncover critical facts concerning the
    MCGI market manipulation conspiracy, including information about its scope, its
    participants, and the distribution and location of proceeds. In support of that
    assertion, he described in detail the evidence set out above, including the
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    information provided by CS-1 (Rosenberg) and CS-2 (Weiner), the corroborating
    MCGI trading data and phone records, and the reporting by Hotstocked.com
    suggesting that the conspiracy was “still ongoing” and that another market
    manipulation had occurred in March 2011.
    In the necessity section of the affidavit, Taylor argued that a wiretap was
    necessary because other investigative techniques were not likely to succeed in
    accomplishing all the objectives of the investigation, including identifying all the
    co-conspirators and uncovering the contents of their conversations. Specifically,
    Taylor stated that surveillance was of limited value in revealing the substance of
    relevant conversations and that an undercover agent would not likely obtain any
    useful information because Defendants were hesitant to work with people they did
    not know. Taylor acknowledged that confidential informants and financial records
    had provided useful historical information, but he noted that CS-1 (Rosenberg) and
    CS-2 (Weiner) no longer worked with or were trusted by Defendants and that
    financial records could only provide information about past events. Taylor stated
    further that the use of interviews, grand jury subpoenas, and search warrants would
    not identify all the co-conspirators or reveal the full scope of their criminal activity
    and would likely hamper the investigation by alerting targets to the investigation.
    Based on the information provided in Taylor’s June 24 affidavit, the district
    court granted the Government’s Title III wiretap application. Different district
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    court judges granted the follow-on wiretap applications filed on July 26, August
    25, and October 3, which were supported by materially similar affidavits
    supplemented with new information about the content of incriminatory calls
    intercepted pursuant to the June 24 order. As evident from the July 26 and August
    25 affidavits, the wiretaps uncovered evidence of the MCGI manipulations that
    occurred in March and May 2010 and of additional planned manipulations. For
    example, in four calls between June 29 and July 19, 2011, Bercoon and an
    individual with the initials T.A. discussed bringing SEC filings current, issuing
    press releases, and raising money from another MCGI manipulation. And on
    August 16, 2011, Veugeler and Bercoon discussed a market manipulation of
    another stock, GNZR.
    C.      Indictment and Pretrial Motions
    Following the investigation, Defendants were indicted on 19 counts of
    conspiracy, mail fraud, wire fraud, securities fraud, and money laundering related
    to the MCGI and Find.com schemes. Six of the counts were dismissed before or
    during trial, leaving 13 counts against Defendants in the indictment. As to
    Find.com, the indictment alleged that Goldstein and Bercoon had conspired to
    defraud investors in the company by distributing written offering materials that
    contained misrepresentations concerning the share price, commission rates, and
    how investment proceeds would be used. With regard to MCGI, the indictment
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    alleged that Goldstein and Bercoon had engaged in a “pump and dump” scheme
    with co-conspirator Veugeler in March and May 2010, whereby Defendants gained
    control of MCGI shares, artificially inflated their prices, and then sold them for
    large profits.
    Prior to trial, Defendants moved to suppress the wiretap recordings, arguing
    that Agent Taylor’s affidavits failed to establish probable cause or necessity.
    Defendants also asked the district court for a hearing under Franks v. Delaware,
    
    438 U.S. 154
     (1978) to determine whether Taylor’s wiretap affidavit included
    statements that were deliberately false or made with reckless disregard for the
    truth, given that the affidavit did not discuss records obtained by the Los Angeles
    SEC office in connection with the pending LADP litigation. The Government
    opposed Defendant’s motions and argued that the good-faith exception to the
    exclusionary rule would apply even if the district court had erred in issuing the
    wiretap orders.
    The magistrate judge recommended denying the motion to suppress and the
    motion for a Franks hearing, concluding that Taylor’s wiretap affidavits
    established probable cause and necessity, that the good-faith exception to the
    exclusionary rule applied in any event, and that Defendants had not shown a
    Franks hearing was warranted. The district court agreed and adopted that
    recommendation.
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    In addition to the wiretap motions, Goldstein filed a motion requesting
    (1) the production of communications between the Atlanta SEC office and the U.S.
    Attorney and (2) an evidentiary hearing as to whether the SEC’s civil investigation
    and the U.S. Attorney’s criminal investigation had unfairly merged. The
    magistrate judge ordered the Government to produce the requested
    communications for in camera review, but she ultimately recommended denying
    Goldstein’s motion, concluding that he had failed to allege any facts that placed the
    legitimacy of the parallel civil and criminal investigations in question. The district
    court agreed after conducting its own in camera review of the communications
    requested by Goldstein.
    Finally, Goldstein filed a motion to suppress the statements he made to SEC
    attorney Brunson during her informal interview in June 2010. The magistrate
    judge held an evidentiary hearing on the motion, during which Brunson testified
    that it was her practice to recite the SEC’s “Privacy Act script” before interviewing
    any witness who is not under subpoena. Brunson stated further that it is SEC
    procedure and her practice to send a form letter along with a copy of Form 1662 to
    a witness after an initial call. As described above, the form letter in Brunson’s file
    on Goldstein stated, “Thank you for taking time to speak with me, voluntarily,
    about your relationship with [MCGI]. . . . As I explained this inquiry is nonpublic
    and confidential.” Brunson testified that she did not typically address what it
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    means for the inquiry to be “nonpublic and confidential” other than to explain, if
    asked, that she would appreciate it if the witness did not speak with anyone else
    about the discussion.
    Crediting Brunson’s testimony, the magistrate judge found that Brunson had
    read the Privacy Act script to Goldstein before speaking with him. The magistrate
    judge therefore concluded that, under the totality of the circumstances, Goldstein
    voluntarily agreed to the interview after being advised that the information could
    be used by the SEC and other authorities to determine if there had been legal
    violations. To the extent the phrase “nonpublic and confidential” was discussed,
    the magistrate judge found that Brunson might have asked Goldstein not to speak
    with anyone else about the investigation, but that she had not misled Goldstein or
    promised that the information he provided would not be used against him. The
    district court adopted the magistrate judge’s ruling.
    D.      Trial
    At trial, the Government presented overwhelming evidence that Defendants
    had orchestrated the MCGI market manipulation and misled investors in Find.com.
    Rosenberg explained that, following Defendants’ instructions, he had set up
    brokerage accounts and the HMRZ account to allow Defendants to trade MCGI
    stock and receive the proceeds. Weiner described traveling to Florida with
    Goldstein to meet Levy, who gave Goldstein step-by-step instructions for
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    conducting a market manipulation and introduced Goldstein to Veugeler. Veugeler
    testified that he had helped Goldstein purchase the shell company that eventually
    became MCGI and explained that he was responsible for acquiring the free-trading
    shares of MCGI stock, creating a demand for the shares via marketing, and selling
    the stock at an artificially inflated price in March and May 2010. Weiner described
    how Goldstein had used a throw-away phone to relay trading instructions to
    Bercoon and how Goldstein, Bercoon, and Levy had worked together to draft and
    time misleading press releases to coincide with the trading. Cusimano added that
    Veugeler had paid him $250,000 to promote MCGI in March and May 2010 via
    email blasts to subscribers of his website, bestdamnpennystocks.com. According
    to Veugeler, he and Goldstein raised approximately $1.6 million from the first
    transaction, $440,000 of which was paid back to investors with the rest split
    between Veugeler, Cusimano, Levy, and MCGI. Rosenberg also related that
    Bercoon had tacitly acknowledged that he and Goldstein were responsible for
    paying the tax liability Rosenberg incurred as a result of the MCGI trades in his
    brokerage accounts.
    The Government entered 17 wiretap recordings into evidence in connection
    with testimony from FBI Special Agent Cromer. On August 15, 2011, Cromer
    visited Goldstein’s house, where he informed Goldstein that the FBI was
    investigating unusual trading activity in MCGI stock and that there was an
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    opportunity for Goldstein to cooperate against bigger targets. After Agent
    Cromer’s visit, several recorded calls between Goldstein and Bercoon captured
    them discussing the FBI’s attempt to have them “roll over” on the “bigger fish.”
    On the recordings, Defendants acknowledged their role in the MCGI market
    manipulation, referring to the scheme as a “victimless crime” and stating that they
    “stole . . . from the market.”
    To prove the misrepresentations made in connection with the Find.com
    scheme, the Government introduced the offering documents used to solicit
    investors, which represented that the price was $1.00 per share, that the company
    would pay sales commissions of 12.5%, and that the proceeds would be reinvested
    into the business. Weiner testified that these representations were false, as
    Defendants sold Find.com stock at less than $1.00 per share, paid sales personnel
    30–40% commissions, and did not reinvest the investment proceeds into the
    business.
    The offering documents also contained false information about a woman
    named Cynthia White, who was affiliated with the company Scientigo, Inc., which
    had sold the Find.com URL to Goldstein and Bercoon. White testified that the
    description of Scientigo in the Find.com offering documents inaccurately listed her
    as a member of the board of managers for Find.com and that the documents were
    otherwise outdated and misleading. In addition, the offering documents contained
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    false statements about the technology Find.com hoped to develop or acquire,
    including an anti-spyware program and a mobile search engine. Weiner testified
    that Find.com did not have anti-spyware technology, and Konstantin Derenstein,
    one of the main technology developers at Find.com, testified that he was never
    asked to develop anti-spyware software or a mobile search engine. Although
    Defendants objected to the testimony of White, Derenstein, and Weiner, arguing
    that it created a material variance between the misrepresentations alleged in the
    indictment and the evidence presented at trial, the court overruled their objections.
    SEC attorney Brunson testified that, during her June 2010 call with
    Goldstein, he had told her that he did not receive any shares or compensation from
    MCGI, and that he did not know whether Veugeler was associated with MCGI.
    According to Veugeler’s testimony, however, those statements were untrue.
    Addressing the Privacy Act script issue, Brunson testified that SEC personnel are
    required to read the script before speaking to a witness. She acknowledged that
    attorneys do not read the script word for word in every instance but said they
    always “hit the high notes,” addressing the witness’s rights and how the SEC might
    use any information provided. Brunson said she always told the witness that it was
    a voluntary decision to speak with her, that the witness could consult an attorney,
    and that the information provided by the witness might be shared with other
    agencies.
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    Brunson further testified that she had notified the U.S. Attorney’s Office and
    paused the civil investigation to allow the criminal investigation to proceed after an
    attorney for Rosenberg and Weiner had contacted her to report the MCGI market
    manipulations in the summer of 2010. Weiner clarified that he and Rosenberg had
    hired attorneys and contacted law enforcement after witnessing the market
    manipulations in March and May 2010. By contrast, Weiner and Veugeler
    testified that Goldstein had continued working with Veugeler even after being
    informed that the SEC had sued Veugeler for securities fraud based on a prior
    market manipulation. And the wiretap showed that Bercoon had continued
    conspiring with Veugeler to commit another market manipulation even after being
    informed that the FBI was investigating them for securities fraud.
    The Government’s financial evidence showed that Defendants’ schemes
    generated millions of dollars in proceeds. Trading data showed that Veugeler’s
    and Rosenberg’s accounts owned 100% of the MCGI free-trading shares before the
    March and May 2010 manipulations, that the conspirators executed a series of
    small trades during the relevant timeframe to give the stock an appearance of
    activity, and that price and trading-volume spikes in MCGI stock followed.
    Financial records established that numerous accounts controlled by Veugeler and
    Rosenberg raised net proceeds of over $2.5 million from the MCGI manipulations.
    As to the Find.com scheme, an FBI forensic analysis revealed that 84 individuals
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    had invested about $1.5 million in Find.com, and that Defendants had withdrawn
    over $550,000 of the proceeds in cash and transferred another $500,000 to the
    HMRZ account.
    E.      Conviction and Sentencing
    The jury convicted Defendants on 12 of the 13 remaining counts, including
    two counts of conspiracy, two counts of mail fraud, seven counts of wire fraud, and
    one count of securities fraud.5 The district court sentenced Defendants to ten years
    and ordered each to pay restitution in the amount of approximately $1.5 million.
    Finding that Defendants both had access to and control over all the accounts
    containing the fraud proceeds, the court imposed a forfeiture order against each
    defendant for the total amount of the proceeds: approximately $1.9 million. The
    court specified, however, that the Government could not recover more than the
    total of $1.9 million from Defendants under the forfeiture order.
    II.      DISCUSSION
    On appeal, Defendants jointly challenge the district court’s admission of
    wiretap evidence, its denial of a Franks hearing, its ruling that the trial evidence
    did not materially vary from the indictment, and its imposition of a $1.9 million
    forfeiture order against both Defendants. Defendant Bercoon also argues that the
    Government engaged in prosecutorial misconduct by mischaracterizing the
    5
    The jury acquitted Goldstein and Bercoon of money laundering.
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    evidence during closing arguments, as well as before the grand jury. Defendant
    Goldstein separately challenges the court’s denial of his motion to suppress his
    statements to SEC attorney Brunson during the preliminary interview and the
    denial of an evidentiary hearing regarding whether the civil and criminal
    investigations improperly merged. We conclude that none of these arguments
    warrant reversal.
    A.      Suppression of Wiretap Evidence
    Evidence obtained by wiretap is subject to the Fourth Amendment’s
    prohibition against unreasonable searches. See Vista Mktg., LLC v. Burkett, 
    812 F.3d 954
    , 970 (11th Cir. 2016) (noting that the Government must show “all that the
    Fourth Amendment itself requires” to obtain a wiretap). As such, a wiretap must
    be supported by the same probable cause necessary to obtain a search warrant. See
    
    id.
     Furthermore, a wiretap is statutorily required to be justified by a showing of
    necessity—a showing that “normal investigative procedures have been tried and
    have failed or reasonably appear to be unlikely to succeed if tried or to be too
    dangerous.” 
    18 U.S.C. § 2518
    (3)(c). The necessity requirement ensures that
    “electronic surveillance is neither routinely employed nor used when less intrusive
    techniques will succeed.” United States v. Maxi, 
    886 F.3d 1318
    , 1331 (11th Cir.
    2018) (quotation marks omitted). “In evaluating whether the Government met its
    burden, courts must read supporting affidavits in a practical and commonsense
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    fashion, and the district court is clothed with broad discretion in its consideration
    of the application.” United States v. Hawkins, 
    934 F.3d 1251
    , 1258 (11th Cir.
    2019) (quotation marks omitted).
    Defendants argue that Agent Taylor’s affidavit submitted in support of the
    Government’s June 24, 2011 wiretap application did not establish probable cause
    or satisfy the necessity requirement. 6 We apply a mixed standard of review to a
    district court’s denial of a motion to suppress evidence obtained from a wiretap,
    reviewing findings of fact for clear error and conclusions of law de novo. United
    States v. Emmanuel, 
    565 F.3d 1324
    , 1330 (11th Cir. 2009). Under this standard,
    we review de novo whether a wiretap is supported by probable cause, cf. United
    States v. Jiminez, 
    224 F.3d 1243
    , 1248 (11th Cir. 2000), and we review the district
    court’s necessity determination for clear error, Maxi, 886 F.3d at 1331.
    1.     Probable Cause
    The Government can establish probable cause for a wiretap with facts
    showing that (1) a crime is being, has been, or is about to be committed and
    (2) communications about the crime will be intercepted by the requested wiretap.
    See 
    18 U.S.C. § 2518
    (3)(a)–(b). Pertinent here, the facts must be “sufficiently
    close in time to the issuance [of the wiretap] . . . that probable cause can be said to
    6
    Defendants do not separately address the subsequent wiretap affidavits submitted in July,
    August, and October 2011, but they argue that those affidavits rely on conversations recorded
    pursuant to the June 24 wiretap order to establish probable cause, and that evidence gathered
    under the later orders should thus be suppressed under the fruit-of-the-poisonous-tree doctrine.
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    exist as of the time of [the wiretap] and not simply as of some time in the past.”
    See United States v. Grubbs, 
    547 U.S. 90
    , 95 n.2 (2006) (quoting with approval
    United States v. Wagner, 
    989 F.2d 69
    , 75 (2d Cir. 1993)); see also United States v.
    Bervaldi, 
    226 F.3d 1256
    , 1264–65 (11th Cir. 2000) (explaining that the staleness
    doctrine requires that probable cause exists when a wiretap is authorized).
    Defendants concede that Agent Taylor’s affidavit established probable cause
    to believe unlawful market manipulations involving MCGI had occurred in March
    and May of 2010. But according to Defendants, Taylor’s affidavit failed to
    establish probable cause to believe the market manipulations were continuing or
    that any information about the past manipulations would be obtained via a wiretap
    issued more than a year after the 2010 manipulations were completed. Thus,
    Defendants argue, the probable cause established by Taylor’s affidavit was stale by
    the time the Government submitted its first wiretap application on June 24, 2011.
    There is no arbitrary time limit after which information offered to support a
    wiretap becomes stale. See Bervaldi, 
    226 F.3d at 1265
    . Rather, evaluating
    staleness requires a fact-intensive inquiry based on the totality of the
    circumstances, including the “nature of the suspected crime (discrete crimes or
    ongoing conspiracy), habits of the accused, [and] character of the [information]
    sought.” 
    Id.
     (quotation marks omitted). Depending on the circumstances, a valid
    21
    USCA11 Case: 18-13321      Date Filed: 02/26/2021   Page: 22 of 51
    wiretap may issue after a crime is complete so long as there is probable cause that
    evidence of the completed crime will be found. See 
    id.
    Here, the magistrate judge did not err in concluding that the probable cause
    contained in Taylor’s June 24, 2011 wiretap affidavit was not stale. First, Taylor’s
    affidavit showed that Bercoon had used the phone targeted by the June 24 wiretap
    application to discuss the 2010 MCGI market-manipulation conspiracy as late as
    May 2011. In February, April, and May of 2011, Rosenberg recorded phone calls
    with Bercoon while cooperating with the FBI. In a February call, Rosenberg
    informed Bercoon that he was facing $83,000 in tax liability for the stock trades
    Bercoon and Goldstein had executed through Rosenberg’s account in March and
    May 2010. Rather than denying his involvement in and responsibility for the
    MCGI trades that had generated Rosenberg’s tax liability, Bercoon responded, “I’ll
    have to meet you and sit down and take a look at it and I’ll go through it with you.”
    Bercoon further offered that “I have a legitimate way to deal with it.” Nor did
    Bercoon deny his responsibility for the tax liability when Rosenberg expressed that
    he was “worried about this $83,000 y’all owe.” Instead, Bercoon said “I
    understand.” Bercoon continued to tacitly accept responsibility for Rosenberg’s
    tax liability in an April call, where he advised Rosenberg to seek an extension of
    the tax filing deadline while he made necessary arrangements. In a May 2011
    follow-up call, Rosenberg stressed the need for Bercoon to complete Rosenberg’s
    22
    USCA11 Case: 18-13321       Date Filed: 02/26/2021   Page: 23 of 51
    tax return, and Bercoon confirmed that he would do so, stating, “I’ll work on it this
    morning” and “get on it this week.” When Rosenberg expressed his “regret[]” for
    “letting [his] account be used,” Bercoon tellingly replied, “I know, I know all this
    shit. I’m in the same fucking boat. . . . I’m trying to do what I can.” Given
    Bercoon’s implicit agreement as late as May 2011 that he was responsible for the
    tax liability generated by trades from Rosenberg’s accounts, the magistrate judge
    reasonably concluded that fresh probable cause existed to believe evidence of the
    2010 MCGI market manipulations would be obtained by wiretapping Bercoon’s
    phone in June 2011, despite the remoteness in time from the manipulations
    themselves.
    Further, Taylor’s affidavit showed that another market manipulation
    involving MCGI had occurred in March 2011, indicating that the conspiracy was
    ongoing. As Taylor described, a report on the website Hotstocked.com announced
    that MCGI was the subject of an “internet promotional campaign” on March 27
    and 28, 2011. The FBI verified that a few days prior to March 27, Goldstein called
    Gerard Adams, a stock promoter known for market manipulation and pump-and-
    dump conduct, and then immediately called Bercoon. Taylor identified 27
    additional contacts between Goldstein and Adams during the last week of March
    2011, as well as an unusually large number of contacts between Goldstein and
    Bercoon the same week. Further, SEC trading data showed that on March 28,
    23
    USCA11 Case: 18-13321       Date Filed: 02/26/2021   Page: 24 of 51
    2011, MCGI’s price increased 108% while its trading volume increased over
    8,000%. Relying on Taylor’s interpretation of this information based on his
    training and experience, the magistrate judge reasonably found that these facts
    supplied probable cause to believe the MCGI market manipulation conspiracy was
    ongoing until at least March 2011, further bolstering the likelihood that a June
    2011 wiretap on Bercoon’s phone would capture evidence of the conspiracy.
    Defendants characterize the information concerning the March 2011
    manipulation as mere speculation, noting that the FBI was not able to verify the
    Hotstocked.com website. Defendants also point out that internet promotion of a
    stock and corresponding increased trading could reflect lawful advertising rather
    than an illegal market manipulation. The same is true, Defendants argue, about the
    frequency of Goldstein’s communications with Adams and Bercoon in March
    2011, which Defendants contend could just as likely have pertained to a lawful
    internet promotion as to a market manipulation. These arguments, however, ignore
    the history and established pattern of the MCGI conspiracy, Adams’s status as a
    known market manipulator, the timing of the Hotstocked.com reporting, and the
    suspicious trading data and contacts.
    In short, the magistrate judge correctly found that the probable cause
    asserted in Taylor’s June 24, 2011 wiretap affidavit was not stale under the totality
    of the circumstances, given Bercoon’s recorded calls with Rosenberg in April and
    24
    USCA11 Case: 18-13321        Date Filed: 02/26/2021     Page: 25 of 51
    May 2011 and the evidence suggesting that another MCGI manipulation had
    occurred in March 2011. This conclusion stands in contrast with the cases cited by
    Defendants, which found the information supporting probable cause stale because
    it concerned temporally remote, discrete crimes. See United States v. Raymonda,
    
    780 F.3d 105
    , 116–17 (2d Cir. 2015) (holding that nine-month-old evidence of “a
    single incident of access” to child pornography did not provide probable cause for
    a warrant to search the suspect’s home “absent any indicia that the suspect was a
    collector of child pornography”); see also United States v. Wagner, 
    989 F.2d 69
    ,
    74–75 (2d Cir. 1993) (invalidating a search warrant that depended on six-week-old
    evidence of a single purchase of marijuana in the absence of evidence suggesting
    an “ongoing drug-selling operation”). Unlike Raymonda and Wagner, the facts
    asserted in Taylor’s June 24 affidavit suggested a conspiracy involving multiple
    episodes of criminal activity that continued over a period of time, with the latest
    incident occurring only a few months prior to the wiretap application. See
    Bervaldi, 
    226 F.3d at 1265
     (noting that probable cause might “quickly dwindle[]”
    if “an affidavit recites a mere isolated violation,” but that “time is of less
    significance” when “an affidavit recites activity indicating protracted or continuous
    conduct” (quotation marks omitted)).
    25
    USCA11 Case: 18-13321       Date Filed: 02/26/2021   Page: 26 of 51
    2.    Necessity
    In addition to being supported by probable cause, a wiretap application must
    satisfy the necessity requirement by including a “full and complete statement”
    describing other investigative techniques that have been tried and failed or
    explaining why such other techniques are unlikely to succeed. See 
    18 U.S.C. § 2518
    (1)(c), (3)(c). A wiretap affidavit need not “show a comprehensive
    exhaustion of all possible techniques” to satisfy the necessity requirement. United
    States v. Van Horn, 
    789 F.2d 1492
    , 1496 (11th Cir. 1986). Instead, it simply must
    show why “investigative techniques that reasonably suggest themselves” have
    failed or would fail. 
    Id.
     Furthermore, the “partial success of alternative
    investigative measures” does not foreclose the use of a wiretap. United States v.
    Perez, 
    661 F.3d 568
    , 581–82 (11th Cir. 2011).
    Agent Taylor’s June 24 affidavit clearly satisfied the necessity requirement.
    The affidavit included an 11-page section explaining in detail why the wiretap was
    needed to accomplish the investigation’s objectives. It exhaustively described
    numerous investigative techniques that had been tried with only partial success or
    that would not likely succeed, including analyzing phone records, using
    confidential informants, surveillance, interviews, grand jury subpoenas, financial
    records, and search warrants. As Taylor explained, although some of these
    26
    USCA11 Case: 18-13321       Date Filed: 02/26/2021    Page: 27 of 51
    techniques had uncovered useful historical information, a wiretap was needed to
    identify all the co-conspirators and reveal the full scope of the conspiracy.
    Defendants argue that the wiretap was unnecessary because the Government
    had already obtained enough information from the SEC’s investigation of MCGI,
    surveillance, phone records, and two confidential sources to convict Defendants.
    This is a somewhat odd position for Defendants to take, given that they
    aggressively challenged the sufficiency of the Government’s evidence at trial,
    questioning the bias and veracity of the informants and arguing that the trading
    data was not consistent with market manipulations. In any event, the
    Government’s showing of necessity was not defeated based on the mere possibility
    that the Government might have otherwise had enough evidence to sustain a
    conviction against Defendants for their past market manipulations of MCGI.
    Again, the Government’s stated objective in the investigation here was to identify
    all the co-conspirators involved in the market-manipulation scheme and to
    determine the full scope of the conspiracy. Taylor’s affidavit shows that the
    wiretap was necessary to meet this objective. See Perez, 
    661 F.3d at 582
     (holding
    that, while the Government had enough evidence to prosecute one defendant
    before the wiretap, it need not end the investigation before learning the full extent
    of the defendant’s criminal activities and identifying his co-conspirators); United
    States v. Hyde, 
    574 F.2d 856
    , 869 (5th Cir. 1978) (affirming necessity of wiretap,
    27
    USCA11 Case: 18-13321        Date Filed: 02/26/2021    Page: 28 of 51
    noting that “[a]lthough the government has actual knowledge of a conspiracy and
    evidence sufficient to prosecute one of the conspirators, it is unrealistic to require
    the termination of an investigation before the entire scope of the [conspiracy] is
    uncovered and the identity of the participants learned” (quoting United States v.
    Armocida, 
    515 F.2d 29
    , 38 (3d Cir. 1975))). And in fact, the Government
    identified new investigation targets from calls intercepted pursuant to the June 24,
    2011 wiretap.
    Finally, Defendants argue that the Government should have tried to obtain
    evidence from the LADP litigation pending in Los Angeles before seeking a
    wiretap. According to Defendants, this evidence would have made the June 24,
    2011 wiretap unnecessary. Yet, Defendants have not shown that the magistrate
    judge clearly erred in rejecting this argument. Indeed, Defendants do not even
    attempt to explain how the information produced in the LADP litigation would
    have uncovered the evidence the Government sought via the wiretap issued in this
    case, which involved a different company and a different fraud scheme. See
    United States v. Alonso, 
    740 F.2d 862
    , 869 (11th Cir. 1984) (“The order will not be
    overturned simply because defense lawyers are able to suggest post factum some
    investigative technique that might have been used and was not.” (quotation marks
    omitted)).
    28
    USCA11 Case: 18-13321        Date Filed: 02/26/2021    Page: 29 of 51
    3.     Good Faith
    Even assuming there was some deficiency in Taylor’s June 24 affidavit, the
    district court held that the good-faith exception to the exclusionary rule applied to
    the wiretap evidence. The good-faith exception applies when “an officer has in
    good faith obtained a search warrant from a judge or magistrate and acted within
    its scope.” United States v. Travers, 
    233 F.3d 1327
    , 1329 (11th Cir. 2000) (citing
    United States v. Leon, 
    468 U.S. 897
    , 920–21 (1984)). The exclusionary rule is
    designed to deter unlawful police conduct. See United States v. Malekzadeh, 
    855 F.2d 1492
    , 1497 (11th Cir. 1988). When law enforcement officers act in good
    faith and in reasonable reliance upon a judge’s order, exclusion is not warranted
    because there is no unlawful conduct to deter. Travers, 233 F.3d at 1329.
    There are four situations in which the good-faith exception does not apply:
    (1) where the issuing judge “was misled by information in an affidavit that the
    affiant knew was false or would have known was false except for his reckless
    disregard of the truth”; (2) “where the issuing magistrate wholly abandoned his
    judicial role”; (3) “where the affidavit supporting the warrant is so lacking in
    indicia of probable cause as to render official belief in its existence entirely
    unreasonable”; and (4) where “a warrant is so facially deficient . . . that the
    executing officers cannot reasonably presume it to be valid.” United States v.
    29
    USCA11 Case: 18-13321    Date Filed: 02/26/2021   Page: 30 of 
    51 Martin, 297
     F.3d 1308, 1313 (11th Cir. 2002) (quotation marks omitted). None of
    these exceptions apply here.
    Repackaging their probable-cause argument, Defendants contend that the
    wiretap affidavit and the resulting wiretap order were facially deficient because
    Agent Taylor’s affidavit lacked fresh probable cause. We have already rejected
    Defendants’ staleness challenge on the merits. Their contention that no reasonable
    officer could believe that probable cause supported the wiretap is less compelling
    still.
    Defendants’ only other argument is that the good-faith exception does not
    apply because they raised a Franks issue. As discussed below, however, Franks is
    inapplicable because Defendants failed to make the required preliminary showing
    that Taylor’s wiretap affidavit was deliberately or recklessly misleading.
    Accordingly, Defendants have not shown that the district court erred in concluding
    that the wiretap evidence was admissible under the good-faith exception to the
    exclusionary rule, even assuming there was some deficiency in the necessity or
    probable cause showing.
    B.      Franks Hearing
    Defendants challenge the validity of the wiretap orders issued in this case
    under the Supreme Court’s decision in Franks v. Delaware, which requires an
    evidentiary hearing when a defendant makes a substantial preliminary showing that
    30
    USCA11 Case: 18-13321       Date Filed: 02/26/2021   Page: 31 of 51
    statements or omissions made in an affidavit supporting a wiretap are deliberately
    false or made with reckless disregard for the truth. 
    438 U.S. 154
    , 155–56, 171–72
    (1978); United States v. Capers, 
    708 F.3d 1286
    , 1296 n.6 (11th Cir. 2013)
    (explaining that Franks had been extended to affidavits submitted in support of a
    wiretap); United States v. Kapordelis, 
    569 F.3d 1291
    , 1309 (11th Cir. 2009)
    (applying Franks to information omitted from a warrant affidavit). To obtain a
    Franks hearing, a defendant must not only show that the affiant made false
    statements or omissions “intentionally or with reckless disregard for the truth,” but
    also that the false statements or omissions were “necessary to the finding of
    probable cause.” Kapordelis, 
    569 F.3d at 1309
    . Neither negligent mistakes nor
    immaterial omissions implicate Franks. See Maxi, 886 F.3d at 1331–32. If a
    wiretap order would be supported by probable cause even after setting aside the
    alleged misrepresentations or considering the information allegedly omitted, no
    hearing is required. See United States v. Sarras, 
    575 F.3d 1191
    , 1218 (11th Cir.
    2009). We review a district court’s denial of a Franks hearing for an abuse of
    discretion. United States v. Barsoum, 
    763 F.3d 1321
    , 1328 (11th Cir. 2014).
    Defendants challenge the district court’s refusal to conduct a Franks hearing
    to determine if Agent Taylor deliberately or recklessly omitted from his wiretap
    affidavit information concerning (1) the Government’s access to information
    produced by Defendants in the LADP litigation pending in Los Angeles and (2) the
    31
    USCA11 Case: 18-13321       Date Filed: 02/26/2021    Page: 32 of 51
    fact that Defendants had divested themselves of their interest in MCGI by
    November 2010. According to Defendants, the first category of information would
    have negated the Government’s necessity showing and the second category of
    information would have undermined the Government’s attempt to refresh probable
    cause based on a purported new manipulation of MCGI stock in March 2011.
    As to the first category, Defendants have not pointed to any information
    uncovered in the LADP litigation that would have rendered a wiretap unnecessary
    in this case, which involved a different fraud scheme and a different corporate
    entity. The fact that the Los Angeles SEC office collected “voluminous” materials
    from Defendants in connection with the LADP litigation is irrelevant without some
    indication as to how those materials would shed light on the MCGI scheme that
    was the subject of the wiretap at issue here. As stated in Taylor’s affidavit, the
    object of the MCGI investigation was to determine the scope of the MCGI
    conspiracy and all its participants. Defendants have not identified any materials
    generated in the LADP litigation that would have achieved this objective.
    Further, Defendants failed to make a preliminary showing that Taylor
    possessed any of the LADP litigation materials when he submitted the June 24
    affidavit. To the contrary, the district court found there was no “serious dispute”
    that the Government did not obtain the information from the LADP litigation until
    July 2015, well after the affidavit was filed. Defendants contend that the
    32
    USCA11 Case: 18-13321     Date Filed: 02/26/2021    Page: 33 of 51
    Government should have tried to get the materials earlier, but at best that
    constitutes negligence, not deliberate or reckless conduct.
    Nor did Defendants’ decision to divest interest in MCGI in November 2010
    negate the possibility that they were conspiring to manipulate MCGI stock in
    March 2011, given that their modus operandi was to manipulate stocks held in
    others’ names. Defendants did not own a controlling share of MCGI stock in the
    months leading up to the March and May 2010 MCGI market manipulations, and
    acquiring control of the stock was one of the last steps necessary to accomplish the
    scheme.
    In short, because Defendants did not make a substantial preliminary showing
    that Agent Taylor deliberately or recklessly omitted material information from his
    wiretap affidavit, the court did not abuse its discretion in denying their motions for
    a Franks hearing.
    C.      Material Variance
    “The Fifth Amendment guarantees that a defendant can be convicted only of
    crimes charged in the indictment.” United States v. Holt, 
    777 F.3d 1234
    , 1261
    (11th Cir. 2015). This principle ensures that the defendant receives proper notice
    of the charges against him and has an opportunity to present a defense. 
    Id.
    Accordingly, a material variance requiring reversal occurs “when the facts proved
    33
    USCA11 Case: 18-13321       Date Filed: 02/26/2021    Page: 34 of 51
    at trial deviate[d] from the facts contained in the indictment” and the defendant
    suffered substantial prejudice as a result. 
    Id.
     (quotation marks omitted).
    Defendants argue that there was a material variance between the
    indictment’s allegations concerning the Find.com scheme and the evidence the
    Government presented at trial to prove the scheme. Defendants note that the
    indictment alleged only three misrepresentations supporting the Find.com scheme,
    including statements related to share price, commissions, and the use of investment
    proceeds, but that the Government introduced evidence at trial about
    misrepresentations related to the technology possessed by Find.com, Cynthia
    White’s role in the company, and the description of Scientigo, a shareholder in the
    company. We review de novo whether a material variance warranting relief
    occurred. See United States v. Lander, 
    668 F.3d 1289
    , 1295–96 (11th Cir. 2012).
    Here, Defendants have not established a material variance, much less that
    any deviation between the facts alleged in the indictment and those proved at trial
    warrants reversal. For starters, the specific allegations in the indictment
    encompass many of the misrepresentations that Defendants contend created a
    material variance. The indictment repeatedly alleged that Defendants defrauded
    Find.com investors “by means of materially false and fraudulent pretenses,
    representations, and promises,” including by making misleading statements about
    “the way in which” investment proceeds “would be used.” Statements falsely
    34
    USCA11 Case: 18-13321      Date Filed: 02/26/2021    Page: 35 of 51
    suggesting that Find.com would devote resources to procuring or developing
    certain technologies—which, based on the testimony presented at trial, were never
    in the pipeline at Find.com—fall squarely within the scope of this allegation, as
    they are misrepresentations concerning the use of investment proceeds.
    Moreover, the technology, White, and Scientigo misrepresentations were
    consistent with the general Find.com scheme alleged in the indictment. A fatal
    variance exists only “where the evidence at trial proves facts different from those
    alleged in the indictment, as opposed to facts which, although not specifically
    mentioned in the indictment, are entirely consistent with its allegations.” United
    States v. Champion, 
    813 F.2d 1154
    , 1168 (11th Cir. 1987) (emphasis in original)
    (quotation marks omitted). Here, the scheme as described in the indictment was
    exemplified by, but not strictly limited to, misrepresentations involving share
    prices, commissions, and use of proceeds. That the evidence at trial proved
    additional misrepresentations consistent with the exemplary categories of
    misrepresentations charged in the indictment did not cause a material variance.
    Compare 
    id.
     (holding that, where the defendants were charged with conspiracy to
    import multiple loads of marijuana, consistent trial evidence regarding additional
    “uncharged loads during the time period of the indicted conspiracy” did not cause a
    material variance), with Lander, 
    668 F.3d at 1296
     (finding a material variance
    where the central misrepresentation alleged in the indictment was specifically
    35
    USCA11 Case: 18-13321     Date Filed: 02/26/2021    Page: 36 of 51
    disproved at trial, prompting the government to shift its trial strategy and rely on a
    different misrepresentation).
    Finally, even assuming a variance occurred, Defendants have not shown
    substantial prejudice. To assess prejudice, we consider “whether the proof at trial
    differed so greatly from the charges that [the defendant] was unfairly surprised and
    was unable to prepare an adequate defense.” See Lander, 
    668 F.3d at 1295
    (quotation marks omitted). Here, Defendants could not have been surprised by the
    Government’s reliance on misleading statements about Find.com technology,
    Cynthia White, and Scientigo because those misrepresentations were contained
    within one of the two written offering documents identified by the indictment as
    the core of the Find.com scheme. By identifying these documents and describing
    in detail how they were used to defraud Find.com investors, the indictment gave
    Defendants adequate notice to prepare a defense. Accordingly, any variance did
    not cause Defendants prejudice warranting relief.
    D.      Prosecutorial Misconduct
    Defendant Bercoon argues that the Government engaged in prosecutorial
    misconduct during its closing argument. Bercoon did not object to the prosecutor’s
    closing remarks at trial. We therefore review his claim of prosecutorial
    misconduct for plain error. United States v. Frank, 
    599 F.3d 1221
    , 1238 (11th Cir.
    2010). Under the plain error standard, we will only reverse a conviction if (1) an
    36
    USCA11 Case: 18-13321       Date Filed: 02/26/2021    Page: 37 of 51
    error occurred, (2) the error was plain or obvious, (3) the error affected the
    substantial rights of the defendant, and (4) a “miscarriage of justice would
    otherwise result.” 
    Id.
     (quotation marks omitted). Bercoon has not satisfied these
    requirements.
    To establish prosecutorial misconduct based on closing remarks, a defendant
    must show that the remarks were both improper and prejudicial to the defendant’s
    substantial rights. 
    Id. at 1237
    . A prosecutor’s closing remarks can be improper if
    they materially misstate the facts shown by the evidence. See United States v.
    Hands, 
    184 F.3d 1322
    , 1333 (11th Cir. 1999) (“It is a fundamental tenet of the law
    that attorneys may not make material misstatements of fact in summation.”
    (quotation marks omitted)). Determining whether a defendant suffered prejudice
    requires the court to consider the closing remarks “in the context of the trial as a
    whole and assess their probable impact on the jury.” Frank, 
    599 F.3d at 1237
    (quotation marks omitted). “A defendant’s substantial rights are prejudicially
    affected when a reasonable probability arises that, but for the remarks, the outcome
    of the trial would have been different.” United States v. Reeves, 
    742 F.3d 487
    , 505
    (11th Cir. 2014) (quotation marks omitted).
    Here, Bercoon argues that the prosecutor acted improperly by suggesting in
    closing remarks that the jury could infer his intent to commit fraud from the fact
    that, rather than contacting law enforcement, he had pursued another pump-and-
    37
    USCA11 Case: 18-13321      Date Filed: 02/26/2021   Page: 38 of 51
    dump scheme with Veugeler the day after learning that the FBI was investigating
    Defendants for market manipulations. The prosecutor pointed out that Bercoon’s
    conduct contrasted with that of Rosenberg and Weiner, who had contacted law
    enforcement as soon as they became aware of the fraud. Bercoon argues that the
    prosecutor’s characterization of the evidence was inaccurate, as he had contacted
    the FBI, hired an attorney, and eventually began cooperating with the Government
    after the FBI visited Goldstein.
    Contrary to Bercoon’s suggestion, the prosecutor’s closing remarks were not
    false or misleading. Unlike Rosenberg and Weiner, who contacted law
    enforcement when they learned that the MCGI trading activity was fraudulent,
    Bercoon did not immediately and proactively contact law enforcement after being
    advised that the FBI was investigating the MCGI market manipulation scheme.
    Instead, the wiretap evidence showed that Bercoon continued to conspire with
    Goldstein and to plan other market manipulations with Veugeler as late as August
    2011. Further, three of the four remarks Bercoon challenges were made during the
    prosecutor’s rebuttal to Bercoon’s argument that Weiner was the bad guy “in
    charge” of the operation, while Defendants were merely well-intentioned
    businessmen. Contrasting Bercoon’s conduct with that of Weiner was a fair
    rebuttal to this argument. See Reeves, 742 F.3d at 505 (noting that “issues raised
    38
    USCA11 Case: 18-13321     Date Filed: 02/26/2021   Page: 39 of 51
    by a defendant in closing argument are fair game for the prosecution on rebuttal”
    (quotation marks omitted)).
    Even assuming the prosecutor’s closing remarks were improper, Bercoon
    has not shown that his rights were substantially prejudiced, much less that a
    “miscarriage of justice” would result if his conviction stands. The district court
    instructed the jury that it should only consider the evidence admitted in the case
    and that “anything the lawyers say is not evidence,” thereby curing any potential
    prejudice. United States v. Bobal, 
    981 F.3d 971
    , 976 (11th Cir. 2020) (holding
    that, even if the prosecutor’s statements in closing were improper, the court “cured
    the problem” by “instruct[ing] the jury that the lawyers’ statements were not
    evidence”). Moreover, given the overwhelming evidence of Bercoon’s guilt, the
    prosecutor’s closing remarks, viewed in context, did not “undermine the
    fundamental fairness of the trial” or constitute “a miscarriage of justice.” United
    States v. Mueller, 
    74 F.3d 1152
    , 1157 (11th Cir. 1996) (quotation marks omitted);
    see Reeves, 742 F.3d at 505–06 (holding that “the strength of the competent proof
    establishing the guilt of the defendant” weighed against concluding that improper
    closing remarks substantially prejudiced the defendant).
    E.      Statements to the SEC
    Goldstein challenges the district court’s denial of his motion to suppress
    statements he made to SEC attorney Brunson during a preliminary, informal
    39
    USCA11 Case: 18-13321       Date Filed: 02/26/2021    Page: 40 of 51
    telephone interview in June 2011, when Brunson was beginning her investigation
    into the 2010 MCGI market manipulations. Those statements—that Goldstein had
    not received compensation or shares from MCGI and did not know whether co-
    conspirator Veugeler was associated with MCGI—were shown to be false at trial.
    According to Goldstein, Brunson’s promise of confidentiality rendered his
    statements involuntary. The magistrate judge rejected this argument, as did the
    district court. In reviewing a denial of a suppression motion, the district court’s
    ultimate determination that the defendant’s statements were voluntary is subject to
    de novo review, but we review the court’s underlying findings of fact only for clear
    error. United States v. Farley, 
    607 F.3d 1294
    , 1325–26 (11th Cir. 2010). We
    discern no error here.
    The magistrate judge held a hearing on Goldstein’s motion to suppress,
    during which Brunson testified that she had no recollection of the telephone
    conversation with Goldstein, but that her file contained notes recording the
    substance of Goldstein’s answers to her questions and a copy of a follow-up letter
    she sent to Goldstein after they spoke. The letter stated, “As I explained, this
    inquiry is nonpublic and confidential.” Enclosed with the letter is a copy of the
    SEC’s Form 1662, which explained in detail (1) a witness’s rights during an SEC
    interview, including the right to have an attorney and the right to refuse to speak
    40
    USCA11 Case: 18-13321        Date Filed: 02/26/2021    Page: 41 of 51
    and (2) how the SEC typically uses witness interviews, including sharing the
    information with law enforcement and other agencies where appropriate.
    Brunson testified at the suppression hearing that, although she did not have a
    specific recollection of the conversation with Goldstein, her practice was to read
    the SEC’s “Privacy Act script” at the beginning of every informal interview she
    conducted with a witness. The script informed the witness that (1) the interview
    relates to the investigation of a potential securities violation, (2) the witness has the
    right to have an attorney present while speaking to the SEC, (3) the witness has the
    right to refuse to speak with the SEC, but is subject to criminal penalties if he
    provides false information, and (4) the SEC routinely shares information obtained
    from witnesses with other authorities for investigation and enforcement purposes.
    Crediting Brunson’s testimony, the magistrate judge found that, prior to
    interviewing Goldstein, Brunson had advised him of his basic rights and how his
    statements could be shared and otherwise used by the SEC. As such, the
    magistrate judge concluded that Goldstein’s statements were voluntary. The
    district court adopted that ruling.
    The court did not err, clearly or otherwise. Goldstein relies on Brunson’s
    purported instruction before the interview that her inquiry was “nonpublic and
    confidential,” arguing that this instruction led him to falsely believe he could speak
    freely to Brunson without fearing self-incrimination. But this argument is
    41
    USCA11 Case: 18-13321       Date Filed: 02/26/2021    Page: 42 of 51
    untenable, given the magistrate judge’s finding that Brunson also read the Privacy
    Act script to Goldstein. Crediting Brunson’s testimony, the magistrate judge
    reasonably found that, as per her ordinary practice, Brunson had followed the
    script, warning Goldstein before the interview that any information Goldstein
    provided could be shared with law enforcement and other agencies for
    investigation and enforcement purposes. That factual finding, which was not
    clearly erroneous, establishes that Brunson did not coerce Goldstein’s statements
    by deceptively promising to keep his statements confidential.
    In a last-ditch effort, Goldstein challenges the magistrate judge’s finding that
    Brunson read the Privacy Act script based on an alleged inconsistency between
    Brunson’s testimony at the suppression hearing and at trial. According to
    Goldstein, Brunson testified at the suppression hearing that she typically read the
    script “word for word,” but she acknowledged during trial that SEC practice was to
    “hit the high notes” of the script, including the witness’s rights and the routine uses
    of information gathered during an interview. To the extent there is any
    inconsistency here, however, it is immaterial. On both occasions, Brunson testified
    that she “always” told witnesses the four most essential aspects of the Privacy Act
    script, including the fact that she “might share this information with other
    agencies.”
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    In short, because Brunson specifically warned Goldstein that information
    gathered during an informal witness interview could be shared with other
    government agencies, Goldstein has not shown that deceptive promises regarding
    confidentiality rendered his statements involuntarily. Accordingly, the court did
    not err in denying Goldstein’s motion to suppress his statements to Brunson.
    F.      Merged Civil and Criminal Investigations
    Next, Goldstein challenges the district court’s denial of his request for an
    evidentiary hearing to determine whether the SEC’s civil investigation and the U.S.
    Attorney’s criminal investigations improperly merged, depriving him of his due
    process rights. We review this issue for an abuse of discretion. See United States
    v. Arbolaez, 
    450 F.3d 1283
    , 1293 (11th Cir. 2006) (“Generally, a court’s decision
    about whether to hold an evidentiary hearing lies within that court’s sound
    discretion and will be reviewed only for an abuse of discretion.”). Here, the
    district court did not abuse its discretion.
    Goldstein’s allegation that the SEC’s civil investigation unfairly merged
    with the U.S. Attorney’s criminal investigation is based on two facts: (1) that the
    SEC and FBI jointly interviewed cooperating witnesses and (2) that the agencies
    conducted their investigations at roughly the same time and shared information.
    Those facts are typical of parallel governmental investigations, which are common
    and generally proper. See United States v. Edwards, 
    526 F.3d 747
    , 759 (11th Cir.
    43
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    2008). Indeed, the SEC is statutorily authorized to share information with the U.S.
    Attorney’s Office. 
    Id.
     (citing 15 U.S.C. §§ 77t(b), 78u(d)(1)).7
    A due process problem might arise in the context of parallel investigations if
    the two government arms collude in bad faith to deprive the defendant of his
    constitutional rights. See id.; see also United States v. Stringer, 
    535 F.3d 929
    , 940
    (9th Cir. 2008) (collecting cases recognizing that dual investigations can implicate
    due process limitations). Such bad faith collusion generally involves “affirmative
    misrepresentations” or “trickery or deceit” by the investigating authority to get the
    defendant to voluntarily turn over documentary or physical evidence relevant to the
    criminal investigation. See Stringer, 
    535 F.3d at 940
    . But Goldstein’s allegation
    that the investigations overlapped failed to establish even a prima facie case of
    misconduct by either the civil or the criminal arm of the investigation against him.
    As such, the district court did not abuse its discretion in denying his request for an
    evidentiary hearing challenging the legitimacy of the investigations.
    G.      Forfeiture
    Defendants argue that the district court’s $1,953,974 forfeiture order
    improperly held them jointly and severally liable, in violation of the Supreme
    Court’s decision in Honeycutt v. United States, 
    137 S. Ct. 1626
    , 1632 (2017). In
    7
    Goldstein also argues that SEC attorney Brunson induced him to make incriminating
    statements by promising to keep what he said confidential. As discussed above, however, the
    district court did not clearly err in finding that Brunson expressly warned Goldstein that his
    statements could be shared with other government agencies.
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    reviewing forfeiture orders, we review findings of fact for clear error and legal
    conclusions de novo. United States v. Waked Hatum, 
    969 F.3d 1156
    , 1161–62
    (11th Cir. 2020).
    In Honeycutt, the Supreme Court held that the language and structure of 
    21 U.S.C. § 853
    , a statute mandating forfeiture of proceeds obtained from certain drug
    crimes, limited forfeiture to “property the defendant himself actually acquired as a
    result of the crime.” Honeycutt, 137 S. Ct. at 1630, 1635. Thus, when a court
    orders forfeiture under § 853, it may not hold a defendant “jointly and severally
    liable for property that his co-conspirator derived from the crime but that the
    defendant himself did not acquire.” Id.
    Here, we need not decide whether Honeycutt’s reasoning applies to the
    forfeiture statute at issue here, 
    18 U.S.C. § 981
    (a)(1)(C), because even assuming it
    does, Defendants have not shown that the district court erred in imposing joint and
    several liability.8 As an initial matter, Defendants’ argument that Honeycutt per se
    8
    We have held that Honeycutt’s reasoning applies to 
    18 U.S.C. § 982
    (a)(7), a forfeiture statute
    for healthcare fraud, United States v. Elbeblawy, 
    899 F.3d 925
    , 941–42 (11th Cir. 2018), cert.
    denied, 
    139 S. Ct. 1322
     (2019), but have expressed doubt that it equally applies to 
    18 U.S.C. § 981
    (a)(1)(C). See United States v. Cingari, 
    952 F.3d 1301
    , 1305–06 (11th Cir. 2020) (holding
    that Honeycutt did not establish that imposing joint and several liability under 
    18 U.S.C. § 981
    (a)(1)(C) was plain error because “Honeycutt was highly dependent on language found
    in 
    21 U.S.C. § 853
     but absent from 
    18 U.S.C. § 981
    ” (quotation marks omitted)), cert. denied,
    No. 20-5937 (U.S. Nov. 9, 2020); see also United States v. Stein, 
    964 F.3d 1313
    , 1325 (11th Cir.
    2020) (holding that, because the statutory language of 
    21 U.S.C. § 853
     and 
    18 U.S.C. § 981
    (a)(1)(C) differed, Honeycutt did not justify applying the intervening-change-in-law
    exception to the law-of-the-case doctrine); cf. United States v. Waked Hatum, 
    969 F.3d 1156
    ,
    1165 (11th Cir. 2020) (holding that, due to differences in statutory language, Honeycutt’s
    45
    USCA11 Case: 18-13321           Date Filed: 02/26/2021       Page: 46 of 51
    prohibits ordering joint and several forfeiture has no basis in the Supreme Court’s
    decision. Honeycutt did not purport to address joint and several forfeiture
    generally but instead narrowly addressed whether a defendant could be ordered to
    forfeit property that his co-conspirator alone acquired. 
    Id.
     That scenario does not
    describe this case, which involved jointly acquired property. Here, the district
    court found that, as a result of the MCGI and Find.com schemes, $1,953,974 in
    fraud proceeds were deposited into bank accounts that “both Defendants had
    access [to] and [the] ability to control” and that were therefore “under the
    Defendants’ joint control.” Based on this finding, which Defendants do not
    challenge on appeal, the court reasonably determined in accordance with
    Honeycutt that each defendant personally acquired the total amount of the fraud
    proceeds deposited into their jointly controlled accounts. See United States v.
    Cingari, 
    952 F.3d 1301
    , 1306 (11th Cir. 2020) (holding that the defendants had
    “failed to establish that they did not mutually obtain, possess, and benefit from
    their criminal proceeds” where “no evidence show[ed] that the married couple split
    their co-earned criminal proceeds”).
    Further, consistent with Honeycutt, the district court limited the forfeiture to
    the total amount of proceeds Defendants personally acquired, ordering that the
    requirement that forfeiture under 
    21 U.S.C. § 853
     be limited to “tainted property” did not apply
    to forfeiture under 
    18 U.S.C. § 982
    (a)(1)).
    46
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    Government may not receive more than a total of $1,953,974 in funds from
    Defendants. See Honeycutt, 137 S. Ct. at 1635. Thus, to the extent that Honeycutt
    applies to forfeiture under 
    18 U.S.C. § 981
    (a)(1)(C), Defendants have not shown
    that the district court ran afoul of the Supreme Court’s holding by imposing joint
    and several liability.
    H.     Bercoon’s Motion to Dismiss Indictment
    Finally, Defendant Bercoon has filed a pro se motion to dismiss his
    indictment, alleging prosecutorial misconduct based on what he characterizes as
    numerous instances of Agent Cromer allegedly offering “perjured, false, and
    improper opinion testimony” before the grand jury. After thoroughly reviewing
    Bercoon’s motion and the grand jury transcript, we find no merit in Bercoon’s
    arguments. “[D]ismissal of an indictment for prosecutorial misconduct is an
    extreme sanction which should be infrequently utilized.” United States v. Jordan,
    
    316 F.3d 1215
    , 1249 n.68 (11th Cir. 2003) (quotation marks omitted). Where, as
    here, a defendant seeks to dismiss his indictment for the first time on appeal, we
    review only for plain error. United States v. Vallejo, 
    297 F.3d 1154
    , 1164–65
    (11th Cir. 2002). Further, “[w]hen the alleged prosecutorial misconduct occurs in
    the context of a grand jury proceeding, we dismiss the indictment only when the
    misconduct ‘substantially influenced the grand jury’s decision to indict’ or when
    there is ‘grave doubt that the decision to indict was free from the substantial
    47
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    influence of such violations.’” United States v. Cavallo, 
    790 F.3d 1202
    , 1219–20
    (11th Cir. 2015) (quoting Bank of Nova Scotia v. United States, 
    487 U.S. 250
    , 256
    (1988)).
    Here, many of Bercoon’s arguments rely upon an unfair reading of the grand
    jury transcript. See id. at 1220 (holding that the defendants had not shown that an
    agent intentionally lied before the grand jury because the defendants’ interpretation
    of the agent’s testimony was not “a fair reading” in context). For example,
    Bercoon contends that the prosecutor must have known that Weiner’s story was
    false based on evidence contradicting aspects of his account, and thus that Agent
    Cromer testified falsely when he related to the grand jury what Weiner had told
    law enforcement. But Bercoon ignores the fact that the prosecutor elicited
    testimony from Cromer about parts of Weiner’s testimony “that sound not quite
    right,” highlighting certain inconsistencies in Weiner’s description of the scheme.
    Similarly, Bercoon’s argument that Cromer falsely testified that he had personally
    observed Goldstein trading out of one of Rosenberg’s accounts unfairly reads
    Cromer’s response to a compound question, which, given the context, any
    reasonable person would interpret as a statement about what Weiner had seen.
    Other arguments that Bercoon makes lack any legal basis that could support
    a finding of plain error. For example, Bercoon cites no authority suggesting that
    the prosecutor acted improperly when, after numerous interruptions, she requested
    48
    USCA11 Case: 18-13321       Date Filed: 02/26/2021    Page: 49 of 51
    that jurors hold questions until the end to facilitate the presentation of evidence.
    Notably, the request was not unreasonable under the circumstances, and, as
    Bercoon acknowledges, the prosecutor later solicited and received juror questions.
    Further, the “opinion” testimony that Bercoon challenges was clearly not
    prejudicial in context. For example, despite acknowledging that MCGI “was
    known to be a start-up,” Bercoon argues that Cromer testified improperly when, in
    response to a grand juror’s question about whether MCGI was a real company, he
    opined that it was never a fully functional business. Even assuming this statement
    constituted improper opinion testimony, the prosecutor elicited foundational
    testimony about MCGI’s limited business dealings that fully supported Cromer’s
    generalization, rendering it harmless. Bercoon also focuses on Cromer’s allegedly
    false testimony that the Levys had already been convicted for “participating in
    numerous stock manipulations over many years, including the activities related to
    this MedCareers’ stock.” But even assuming Bercoon is right that the Levys were
    not convicted for manipulating MCGI stock in particular, this incidental comment
    was harmless. Cromer’s testimony was not part of the Government’s affirmative
    case and was instead prompted by a juror question about who the Levys were and
    why Weiner and Goldstein had met with them. Further, Cromer couched his
    response in uncertainty, stating “I’m not sure exactly,” which provided the grand
    jury with enough information to weigh Cromer’s stated belief about the Levys. Cf.
    49
    USCA11 Case: 18-13321      Date Filed: 02/26/2021      Page: 50 of 51
    United States v. Garate-Vergara, 
    942 F.2d 1543
    , 1550 (11th Cir. 1991), amended
    sub nom. United States v. Lastra, 
    991 F.2d 662
     (11th Cir. 1993) (holding that an
    agent’s false statement to a grand jury that “Coast Guard officers saw crew
    members throwing bags overboard” was “neither intentionally false nor
    sufficiently prejudicial to warrant dismissal of the indictment,” where the agent
    had “incorrectly assumed that [the Coast Guard] had seen the act of disposal rather
    than deduced it from the location of the bags in the water”).
    In short, the transcript reveals that the grand jury proceeding was a miniature
    version of the real trial, with Agent Cromer presenting the core evidence that the
    Government ultimately offered at trial. We discern no misconduct by the
    Government at either proceeding. Moreover, given the overwhelming evidence
    presented against Defendants both during the grand jury proceedings and at trial—
    including, among other things, Weiner’s and Rosenberg’s detailed description of
    the scheme, the wiretap recordings, the SEC’s analyses of MCGI trading activity,
    and the financial analysis of bank accounts under Defendants’ control—we are
    convinced that the grand jury’s decision to indict was not substantially influenced
    by any improper testimony. See United States v. Jennings, 
    991 F.2d 725
    , 729
    (11th Cir. 1993) (holding that a grand juror’s friendship with one of the victims
    was harmless because “[t]he government presented overwhelming evidence to the
    grand jury for it to find probable cause to believe that [the defendant] committed
    50
    USCA11 Case: 18-13321      Date Filed: 02/26/2021   Page: 51 of 51
    the offenses”); see also United States v. Flanders, 
    752 F.3d 1317
    , 1333 (11th Cir.
    2014) (holding that, where a false allegation allegedly made before the grand jury
    was not repeated to the petit jury, any misconduct was harmless because “the petit
    jury’s guilty verdicts demonstrate that there was probable cause to charge
    Defendants with the offenses for which they were convicted”). Accordingly, we
    find no basis to dismiss the indictment, and we deny Bercoon’s motion to that
    effect.
    III.      CONCLUSION
    Because Defendants have identified no error warranting reversal, we affirm
    Defendants’ convictions and the district court’s forfeiture order.
    AFFIRMED.
    51