934 F.3d 1199
11th Cir.2019Background
- Stahlman posted a Craigslist “Daddy/daughter fantasy” ad and communicated via email/Kik with an undercover FBI agent (posing as a father) about a fictional 11‑year‑old; exchanges were explicit and spanned months. He traveled to a planned meeting and was arrested in a parking lot.
- Charged under 18 U.S.C. § 2422(b) for attempting to entice a minor to engage in sexual activity; convicted after a jury trial and sentenced to 292 months.
- Defense theory: Stahlman claimed the ads/conversations were fantasy role‑play with consenting adults (he portrayed a fictional persona in Craigslist encounters). He proffered Dr. Chris Carr as an expert to explain fantasy/role‑play behavior.
- District court excluded Dr. Carr’s testimony (methodology/704(b) concerns) and admitted substantial lay testimony from Agent Hyre about the communications.
- Post‑trial, government disclosed that Agent Hyre had a prior FBI disciplinary suspension (use of home computer in undercover investigations); Stahlman sought a new trial (Brady/Rule 16), which the district court denied.
Issues
| Issue | Plaintiff's Argument (Stahlman) | Defendant's Argument (Government) | Held |
|---|---|---|---|
| Exclusion of Dr. Carr (expert) | Dr. Carr would explain internet sexual fantasy/role‑play and show Stahlman lacked intent to have sex with an actual minor. | Expert testimony would improperly opine on defendant’s intent and was unreliable under Rule 702/Daubert; violates Rule 704(b). | Exclusion affirmed: testimony would violate Rule 704(b) by directly opining that Stahlman lacked requisite intent; district court did not abuse discretion. |
| Admission of Agent Hyre’s opinion testimony | Hyre’s interpretations required expert status; government failed to disclose him as an expert under Rule 16. | Hyre’s testimony was rationally based on his perception and helpful to the jury (permitted lay testimony under Rule 701); in any event harmless. | Admission affirmed as not reversible error. Court found much was proper lay testimony; any misapplication of Rule 701 was harmless. |
| Sufficiency of evidence / JMOL | Evidence equally supports innocent fantasy explanation; government failed to prove intent and substantial step beyond reasonable doubt. | Emails were explicit, showed intent to entice a minor, and Stahlman took a substantial step by traveling to the meeting. | Conviction affirmed: viewing evidence in government’s favor, jury reasonably found intent and substantial step. |
| Obstruction enhancement (perjury) at sentencing | Trial testimony was exercise of rights; alleged contradiction to proffered statements not perjury—insufficient findings. | Testimony that he never had sexual thoughts about children contradicted his proffered admission that he masturbated to stories about minors; PSR and court supported finding of willful false testimony. | Two‑level enhancement affirmed. District court adopted PSR findings; Dunnigan standard satisfied and credibility determination not clearly erroneous. |
| New trial (Brady / Rule 16) based on late disclosure of Hyre discipline | Hyre’s discipline was Brady material and would have impeached his credibility; nondisclosure prejudiced defense and strategy. | Discipline unrelated to truthfulness and at best impeachment; evidence against Stahlman was overwhelming so nondisclosure not material. | Denial affirmed. Even if disclosure error occurred, evidence was at most impeachment and not likely to change outcome; harmless. |
Key Cases Cited
- Daubert v. Merrell Dow Pharm., 509 U.S. 579 (1993) (district courts must assess reliability and relevance of proffered expert methodology)
- United States v. Dunnigan, 507 U.S. 87 (1993) (perjury for sentencing enhancement: false testimony on a material matter given willfully, not from confusion or mistake)
- United States v. Augustin, 661 F.3d 1105 (11th Cir. 2011) (expert may not opine on defendant’s ultimate intent under Rule 704(b))
- United States v. Hite, 769 F.3d 1154 (D.C. Cir. 2014) (expert testimony explaining online sexual fantasy generally admissible, but may not state ultimate intent)
- United States v. Lee, 603 F.3d 904 (11th Cir. 2010) (§ 2422(b) conviction possible even where the ‘minor’ is fictitious; elements: specific intent and substantial step)
- United States v. Murrell, 368 F.3d 1283 (11th Cir. 2004) (definition of substantial step corroborating intent)
- United States v. Frazier, 387 F.3d 1244 (11th Cir. 2004) (abuse‑of‑discretion review of expert admissibility)