United States v. Cates, 897 F.3d 349

Darrin Cates pleaded guilty to possession of child pornography after investigators found 826 images and 298 videos of children (ages 2–11) on his drives; he admitted downloading child pornography via BitTorrent for ~3 years.
PSI recommended base offense level 18 with enhancements: +5 for a pattern of sexual abuse/exploitation of a minor (USSG §2G2.2(b)(5)), +2 for knowing distribution (USSG §2G2.2(b)(3)(F)), and -3 for acceptance of responsibility, yielding an adjusted offense level of 35 and Guidelines range 168–210 months.
The district court applied both enhancements based largely on: (1) Jane Doe’s allegations of two separate sexual incidents from 1997 (then age 7–8) and consistent statements across interviews; and (2) evidence that Cates used BitTorrent with a sharing folder and technical sophistication, so his downloads were accessible to others.
Cates did not contest Doe’s allegations at sentencing and the court found her credible; the court imposed a below-Guidelines 120-month sentence.
On appeal, Cates challenged the pattern-of-activity enhancement (arguing a Due Process ‘catch-22’, that there was only one incident, and that Doe’s allegations lacked corroboration) and the knowing-distribution enhancement (arguing no proof he knew BitTorrent’s file‑sharing properties).

Issue	Plaintiff's Argument	Defendant's Argument	Held
Applicability of §2G2.2(b)(5) pattern-of-activity enhancement	Government: two or more separate instances of sexual abuse (Doe’s accounts) satisfy the guideline; district court credited Doe’s testimony	Cates: Due Process violated because contesting allegations risked losing acceptance reduction; incidents collapse into one; allegations uncorroborated and too old	Affirmed: No Due Process violation (court’s warnings were lawful); two discrete incidents existed; credibility finding not clearly erroneous — enhancement proper
Applicability of §2G2.2(b)(3)(F) knowing-distribution enhancement	Government: circumstantial evidence (BitTorrent use, created sharing folder, technical sophistication, statements) show he knew files were accessible	Cates: No direct evidence he knew BitTorrent’s sharing properties	Affirmed: Circumstantial evidence supported an inference he knew BitTorrent made files accessible; no clear error

Stinson v. United States, 508 U.S. 36 (1993) (guideline commentary generally authoritative)
United States v. Woodward, 277 F.3d 87 (1st Cir. 2002) (older sexual-abuse allegations can support §2G2.2 pattern enhancement)
United States v. Clark, 685 F.3d 72 (1st Cir. 2012) (pattern-of-abuse enhancement can rely on long-ago allegations)
United States v. Amirault, 224 F.3d 9 (1st Cir. 2000) (credibility of long-ago abuse allegations for pattern enhancement)
United States v. Nuñez, 852 F.3d 141 (1st Cir. 2017) (review standard: factual findings at sentencing for clear error)
United States v. Baldwin, 743 F.3d 357 (2d Cir. 2014) (knowledge for distribution enhancement satisfied by awareness of peer-to-peer properties)
United States v. Robinson, 714 F.3d 466 (7th Cir. 2013) (peer-to-peer use can satisfy knowing-distribution mens rea)
United States v. Layton, 564 F.3d 330 (4th Cir. 2009) (same principle for peer-to-peer networks)