Producer’s Intent Governs “Lascivious Exhibition” in Hidden-Camera Recordings; Curative Instructions Can Neutralize Incremental Rule 414 Surprise Testimony

1. Introduction

In United States v. Gray Rivera (11th Cir. July 22, 2026), the Eleventh Circuit affirmed the convictions of Gray Edward Rivera for two counts of production and one count of attempted production of child sexual abuse material (“CSAM”) under 18 U.S.C. §§ 2251(a) and (e). The evidence showed Rivera hid “spy cameras” in his girlfriend’s minor daughter’s bedroom and recorded her dressing and undressing, later curating and storing explicit still frames and short videos on his phone.

On appeal, Rivera raised three principal issues: (1) whether unexpected testimony from a Rule 414 witness (an adult stepdaughter describing prior abuse) warranted a mistrial; (2) whether the district court should have struck that witness’s testimony in full as unreliable; and (3) whether the recordings amounted to “sexually explicit conduct,” specifically a “lascivious exhibition,” rather than mere nudity.

2. Summary of the Opinion

The Eleventh Circuit affirmed across the board. It held:

  • The district court did not abuse its discretion in denying a mistrial after a Rule 414 witness unexpectedly added a brief allegation beyond the government’s notice; the court struck the line, instructed the jury to disregard it, and the remaining evidence of guilt was strong.
  • The court properly declined to strike the witness’s testimony in its entirety; corroboration is not required for admission of Rule 404(b)/414 acts, and the alleged inconsistencies did not establish perjury or unreliability requiring wholesale exclusion.
  • The evidence was sufficient to prove “lascivious exhibition” under 18 U.S.C. § 2256(2)(A)(v) because, under circuit precedent, “otherwise innocent” conduct can become “lascivious” based on the producer’s intent and actions—particularly in hidden-camera cases.

The panel emphasized that United States v. Holmes controls the “mere nudity” argument, and the court rejected Rivera’s invitation to realign Eleventh Circuit law with the D.C. Circuit’s narrower approach in United States v. Hillie, citing the circuit’s prior-panel-precedent rule.

3. Analysis

3.1. Precedents Cited

A. Mistrial, curative instructions, and harmlessness

  • United States v. Delgado — Provided the governing principle that mistrial determinations are discretionary and that reversal is rare when a curative instruction is given; the court will reverse “only if the evidence is so highly prejudicial as to be incurable.” Rivera uses Delgado’s framework to uphold the trial judge’s assessment of prejudice in context.
  • United States v. Newsome — Supplied the formulation that mistrial is warranted only when improper testimony prejudicially affects substantial rights. The Rivera court applies Newsome to conclude there was no substantial-rights prejudice.
  • United States v. Wilson — Gave the “reasonable probability” test: whether, but for the improper matter, the outcome would be different, evaluated in light of the entire trial and curative instructions. Rivera applies Wilson to find no reasonable probability of a different result.
  • United States v. Perez — Supported deference to trial judges (best position to gauge prejudice) and explained that improper testimony is less likely to require mistrial when other evidence of guilt is significant. Rivera uses Perez twice: (i) to justify deference and (ii) to emphasize the strength of independent evidence.
  • United States v. Adams — Reinforced harmless-error analysis: any error is harmless where there is sufficient independent evidence of guilt. Rivera leverages Adams to underscore that the spy-camera evidence, device purchases, and curated files would carry the verdict.
  • United States v. Calderon — Stands for the presumption that juries follow instructions. Rivera relies on this presumption to credit the trial court’s instruction to disregard the struck line.
  • United States v. Bailey — Cited via Wilson to support the conclusion that repeated instructions throughout trial can mitigate prejudice. Rivera treats Bailey as confirming that the instruction set (before testimony, immediate curative, final charge) matters.
  • United States v. Funt, United States v. Ruz-Salazar, and United States v. Benz — These cases supply the “spontaneous and singular” concept: isolated improper remarks generally do not justify a mistrial, especially with curative instructions. Rivera classifies the unexpected allegation as exactly that—one line amid extended testimony.
  • United States v. Blake and United States v. Hersh — Used for the insight that where properly admitted evidence is already highly inflammatory (child molestation and child pornography), incremental prejudice from additional inflammatory detail is less likely to be “compelling.” Rivera analogizes: the stricken line added little to already-admitted severe allegations.

B. Admission/striking of Rule 404(b)/414 testimony; reliability and perjury

  • United States v. Green — Sets the admission threshold for Rule 404(b) acts: the proponent need only present enough evidence for a jury to find the act by a preponderance (often satisfied through witness testimony alone). Rivera applies Green to reject a corroboration requirement.
  • United States v. McNair — Defines perjury as willful intent to lie, not confusion, mistake, or faulty memory. Rivera uses McNair to conclude that trauma, time, and language issues more plausibly explained any perceived inconsistency.

C. “Lascivious exhibition” and hidden-camera recordings

  • United States v. Grzybowicz — Provides the Eleventh Circuit’s definition that “lascivious exhibition” is a display that “potentially excites sexual desires or is salacious,” and notes the circuit has declined to adopt the Dost multi-factor test. Rivera relies on Grzybowicz both for the definition and to again decline Dost.
  • United States v. Williams (Eleventh Circuit) — Quoted for the proposition that material need not always be “dirty” to qualify as lascivious exhibition. Rivera uses this to resist a narrow “only overt sex acts” approach.
  • United States v. Holmes — The controlling precedent. Holmes held that “otherwise innocent conduct” can constitute “lascivious exhibition” depending on the producer/editor’s actions (camera placement, angles, focus, editing). Rivera treats Holmes as dispositive: the “exhibition must be lascivious—not the child.”
  • United States v. Horn, United States v. Wiegand, United States v. Wolf, and United States v. Johnson — Cited within Holmes’s reasoning for the producer-intent approach and for examples like “freeze-framing,” zooming, and arrangement to focus attention on the pubic area. Rivera uses these authorities (through Holmes) to validate looking to Rivera’s curation, framing, and remote pivoting.
  • United States v. Dost — Mentioned only to note Rivera’s request that the Eleventh Circuit adopt Dost’s factors; the court again declines as unnecessary.
  • United States v. Hillie — A contrary D.C. Circuit approach requiring a “lustful manner that connotes the commission of a sexual act.” The panel acknowledges Hillie but rejects Rivera’s invitation to follow it because Holmes controls.
  • United States v. Williams (Supreme Court) — Rivera invoked it (via Hillie) to argue “sexually explicit conduct” connotes depiction of a sex act, but the panel notes that the relevant statutory phrase here is “lascivious exhibition,” and also that circuit precedent binds regardless.

D. Prior-panel-precedent rule

  • Smith v. GTE Corp. — Establishes that later panels cannot depart from earlier published panel decisions due to disagreement with their reasoning or perceived conflict with existing law at the time.
  • United States v. Fritts — Reinforces that there is no exception for “overlooked or misinterpreted Supreme Court precedent” absent a directly on-point overruling.
  • Scott v. United States — Restates that only the en banc court or the Supreme Court can overrule the first panel’s holding on an issue. Rivera uses these cases to foreclose reconsideration of Holmes in light of Hillie.

3.2. Legal Reasoning

A. Why the mistrial was properly denied

The court’s mistrial analysis is methodical and cumulative:

  1. Strength of the independent case: Rivera’s purchase records, device registration emails, apps enabling remote control/encryption, camera placement, and curated explicit frames formed a robust evidentiary base. Under United States v. Perez and United States v. Adams, this reduces the likelihood that an isolated improper statement drove the verdict.
  2. Layered limiting/curative instructions: The court emphasized (i) a pre-testimony limiting instruction on similar-acts evidence, (ii) an immediate instruction to disregard the struck line, and (iii) final instructions reiterating that similar-acts evidence alone cannot prove the charged crimes. Under United States v. Calderon, juries are presumed to follow these directions.
  3. Incremental nature and isolation of the improper detail: The testimony was “spontaneous and singular” under United States v. Funt and United States v. Benz. The panel also reasoned that the new allegation was, in context, not clearly more inflammatory than the properly-noticed and admitted sexual-abuse incident.
  4. No government bad faith: The government represented it lacked prior knowledge of the additional allegation. That mattered implicitly because it framed the episode as an unforeseen witness expansion, not a disclosure violation designed to gain unfair advantage.

The result is a pragmatic appellate holding: where (1) the improper detail is brief, (2) promptly struck, (3) met with tailored instructions, and (4) surrounded by strong proof of the charged conduct, the district court acts within its discretion in refusing to abort the trial.

B. Why striking the entire Rule 414 witness testimony was unnecessary

Rivera’s “unreliability” and “lack of corroboration” argument failed for two distinct doctrinal reasons:

  • No corroboration requirement: Relying on United States v. Green, the panel reiterated that prior-act evidence can be supported by witness testimony alone so long as the trial court could conclude the jury could find the act proved by a preponderance.
  • Inconsistency ≠ perjury: Under United States v. McNair, perjury demands willful falsity. The court treated the challenged testimony as potentially arising from trauma, passage of time, and language/translation complexity—insufficient to justify striking all testimony.

Importantly, the district court chose a targeted remedy—striking only the final line—rather than the blunt instrument of total exclusion. The panel endorsed that proportionality as consistent with trial-court discretion.

C. Why the “mere nudity” sufficiency challenge failed

Rivera’s core sufficiency argument was that the images showed only a minor changing clothes. The panel rejected that framing by applying the Eleventh Circuit’s producer-intent doctrine for “lascivious exhibition,” anchored in United States v. Holmes.

The court identified multiple facts from which a jury could infer lasciviousness based on Rivera’s actions:

  • hidden-camera placement where nudity was foreseeable (bedroom/vanity oriented toward underwear storage);
  • use of devices (including a portable speaker camera used in the bathroom) that increased opportunities to record nudity;
  • curation and retention of the “most prurient” portions via still frames and short clips (i.e., selection/editing);
  • evidence suggesting remote camera manipulation (pivoting in recordings; remote-control apps);
  • sexualized communications and grooming context supporting prurient motive.

That combination tracks Holmes’s hallmarks—camera placement, angles, focus, and editing—making the statutory element a question the jury could resolve against Rivera beyond a reasonable doubt.

3.3. Impact

A. Hidden-camera CSAM cases: Rivera reinforces Holmes’s breadth

Rivera strengthens the practical reach of United States v. Holmes in the Eleventh Circuit: prosecutors need not prove that the minor posed sexually or engaged in overtly sexual behavior. Instead, they can prove “lascivious exhibition” by showing the defendant’s exploitative production choices (placement, framing, selection, editing, retention, and—here—remote control).

B. Rule 414 management: incremental surprise testimony is not automatically trial-fatal

The opinion signals that when a Rule 414 witness unexpectedly adds detail beyond the government’s notice, the default appellate lens is not automatic reversal. Rather, courts will examine (i) whether the statement was isolated, (ii) the immediacy and specificity of the cure, (iii) the closeness of the case, and (iv) the presence or absence of government foreknowledge. This provides trial courts confidence to use tailored remedies—striking and instructions—over mistrial.

C. Circuit lock-in: Hillie-like arguments must go en banc or to the Supreme Court

By invoking Smith v. GTE Corp., United States v. Fritts, and Scott v. United States, the panel underscores that defendants challenging Holmes’s producer-intent standard (especially with reliance on United States v. Hillie or Supreme Court dicta) face a structural obstacle: a panel cannot change the rule. Any doctrinal shift in the Eleventh Circuit must come from en banc review or the Supreme Court.

4. Complex Concepts Simplified

Rule 414 (Federal Rules of Evidence)
Allows the government, in child-molestation cases (including prosecutions under 18 U.S.C. § 2251), to introduce evidence that the defendant committed other child molestation. Unlike ordinary propensity limits, Rule 414 permits jurors to consider such evidence “on any matter to which it is relevant,” subject to Rule 403.
Rule 404(b)
Generally bars propensity evidence but allows “other acts” for non-propensity purposes (e.g., intent, motive, absence of mistake). Rivera’s case involved both 404(b) and 414, but Rule 414 is the more permissive route when applicable.
Rule 403
Lets a court exclude relevant evidence if its probative value is substantially outweighed by unfair prejudice, confusion, or waste of time. Rivera’s mistrial request was effectively a claim that surprise testimony created unfair prejudice that could not be cured.
Curative instruction
A judge’s directive telling jurors to disregard evidence. Appellate courts usually presume jurors follow it (United States v. Calderon), making reversal uncommon unless the prejudice is truly incurable.
“Lascivious exhibition”
A form of “sexually explicit conduct” under 18 U.S.C. § 2256(2)(A)(v). In the Eleventh Circuit, following United States v. Holmes, the focus is often on the producer’s intent and manipulation of the depiction—especially in covert recordings—rather than on whether the minor acted sexually.
Prior-panel-precedent rule
A later three-judge panel must follow earlier published panel decisions unless overruled en banc or by the Supreme Court (Scott v. United States). Even claims that an earlier panel misread Supreme Court authority generally do not create an exception (United States v. Fritts).

5. Conclusion

United States v. Gray Rivera is a consolidating decision with two key doctrinal messages. First, in the Eleventh Circuit, covert recordings of a minor’s otherwise nonsexual nudity can satisfy “lascivious exhibition” when the producer’s conduct—camera placement, framing, selection, editing, and retention—shows a prurient design, as established in United States v. Holmes. Second, unexpected incremental testimony from a Rule 414 witness does not automatically require a mistrial when it is isolated, promptly struck, and cured by instructions, especially where independent evidence of guilt is strong.