Case Explained: United States v. Gigena

Court: United States Court of Appeals for the Tenth Circuit Filed: 2026-08-13 Docket: 2:24-CR-00228-TS-CMR-1) The tenth-circuit affirmed Gabriel Gigena’s conviction for assaulting a federal officer and his sentence of fifteen months’ imprisonment. The court applied de novo review to jurisdictional and sufficiency-of-evidence claims, plain error review to unpreserved procedural claims, and abuse of discretion review to the sentencing determination. Regarding the conviction, the court held that the government presented sufficient evidence under 18 U.S.C. §§ 111(a)(1) and 1114 that Officer Piekarczyk was a federal officer because he was deputized by the United States Marshals Service as part of a task force. The court further ruled that the government was not required to present evidence to rebut defenses, such as self-defense or excessive force, which Gigena did not raise at trial. Claims regarding prosecutorial misconduct, *Brady* violations, and speedy trial delays failed under plain error review because Gigena did not identify specific misconduct, material exculpatory evidence, or presumptively prejudicial delay. The court also rejected Gigena’s argument that tribal immunity deprived the district court of subject matter jurisdiction, citing 18 U.S.C. § 3231, and found no abuse of discretion in denying the motion to disqualify the trial judge under 28 U.S.C. § 144 due to a lack of sufficient affidavit and procedural compliance. Regarding the sentence, the court affirmed the below-guidelines term, noting that such sentences are presumptively reasonable. The court rejected Gigena’s challenge to his criminal history calculation, holding that he failed to meet his affirmative duty under Federal Rule of Criminal Procedure 32(i)(2)(B) to show the Presentence Investigation Report was unreliable. Additionally, the court found no substantive unreasonableness in the sentence, as the district court properly considered the factors set forth in 18 U.S.C. § 3553(a). The court also directed that Gigena’s ineffective assistance of counsel claim must be brought in collateral proceedings rather than on direct appeal. All pending motions were denied as meritless. Do It For The Case Law is a news reporting service. Nothing in this episode constitutes legal advice.