United States v. Jonathan Sebert, 899 F.3d 639

Defendant Jonathan Sebert pled guilty to receipt of child pornography and was sentenced in Aug. 2017 to 240 months imprisonment (the statutory maximum for his conviction) and 20 years supervised release.
The district court imposed the statutory maximum after considering aggravating facts including a plea deal that avoided a longer sentence for sexual exploitation of a 13‑year‑old and evidence of distribution of child pornography.
Sebert appealed, arguing (1) his within‑Guidelines sentence was substantively unreasonable and (2) a supervised‑release special condition banning him from viewing, possessing, producing, or using "erotica or pornographic materials" and from entering establishments where such materials can be obtained is unconstitutionally vague and overbroad.
The panel reviewed substantive reasonableness under the Guidelines presumption and 18 U.S.C. § 3553(a) factors and found no abuse of discretion in the district court’s weighing of aggravating factors.
On the special‑condition challenge, the panel relied on circuit precedent (notably Mefford and Bordman) holding that terms like "pornography" and "erotica" are not vague as applied and affirmed the condition.
Concurring opinion (Judge Grasz) agreed with the judgment but questioned the precedential basis for upholding "erotica," arguing Mefford relied improperly on Ristine; he warned the term may be overbroad in practice and urged clearer, tailored language for supervised‑release conditions.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether the 240‑month within‑Guidelines sentence was substantively unreasonable	Sebert: district court misweighed factors and imposed an excessive sentence	Gov: court properly considered aggravating facts and § 3553(a); Guidelines presumption applies	Affirmed; sentence not substantively unreasonable; no abuse of discretion
Whether the special condition banning "erotica" is unconstitutionally vague/overbroad	Sebert: "erotica" is vague/overbroad and could prohibit benign stores or art, thus unconstitutional	Gov: condition is valid and confined by circuit precedent; district court’s intent clarifies scope	Affirmed per precedent (Mefford/Bordman); terms not vague as applied, but concurrence flagged doctrinal concerns and urged clearer tailoring

United States v. Funke, 846 F.3d 998 (8th Cir. 2017) (review of sentence reasonableness and Guidelines presumption)
United States v. Miner, 544 F.3d 930 (8th Cir. 2008) (abuse‑of‑discretion standard for weighing sentencing factors)
United States v. Mefford, 711 F.3d 923 (8th Cir. 2013) (upholding supervised‑release condition prohibiting entry to locations where "erotica" or pornography can be viewed)
United States v. Bordman, 895 F.3d 1048 (8th Cir. 2018) (affirming that "pornography" and "erotica" are not vague as applied)
United States v. Ristine, 335 F.3d 692 (8th Cir. 2003) (addressing pornography restriction; did not challenge "erotica" portion)
United States v. Simons, 614 F.3d 475 (8th Cir. 2010) (vacating an overbroad condition encompassing "nudity")
United States v. Hobbs, 710 F.3d 850 (8th Cir. 2013) (examples of approved supervised‑release terminology to constrain prohibited materials)
United States v. Kelly, 625 F.3d 516 (8th Cir. 2010) (limitations on conditions and tailoring regarding nude depictions of minors)
United States v. Jackson, 866 F.3d 982 (8th Cir. 2017) (noting supervised release is a form of criminal sanction)