Luigi Mangione Prosecutions

This dossier collects the records of three parallel prosecutions of Luigi Mangione arising from the December 4, 2024 fatal shooting of UnitedHealthcare CEO Brian Thompson in Midtown Manhattan: a New York State prosecution in Manhattan Supreme Court (People v. Mangione, IND-75657-24/001), a federal prosecution in the Southern District of New York (United States v. Mangione), and a Pennsylvania state prosecution in Blair County (Commonwealth v. Mangione). Mangione has pleaded not guilty in all three cases.

The three prosecutions raise distinct sets of legal issues. The New York State case originally included a first-degree murder count alleging that the killing was in furtherance of an act of terrorism — a charge invoked only rarely in New York — but on September 16, 2025 Justice Carro dismissed both terrorism counts (including that first-degree murder count) as legally insufficient, leaving second-degree murder as the top charge among nine remaining counts. The federal prosecution includes counts under the federal stalking statute (18 U.S.C. § 2261A) and a murder-through-use-of-a-firearm count (§ 924(j)) which originally carried potential capital exposure; that capital-eligible count was dismissed by Judge Garnett in January 2026. The Pennsylvania case concerns the conduct attendant to Mangione's December 9, 2024 arrest in Altoona — primarily forgery and firearm-possession charges — and has remained procedural while the larger cases proceed.

Trial dates currently stand: New York State trial September 8, 2026 (Justice Gregory Carro); federal trial October 13, 2026 (Judge Margaret M. Garnett); Pennsylvania pretrial schedule pending. The cases have visibly interacted: the federal court rescheduled trial to follow the state court, and on June 18, 2026 the defense withdrew an extreme-emotional-disturbance notice in the state case after the prosecution moved to unseal supporting materials whose disclosure, the defense argued, would prejudice the parallel federal case (where EED is not available as a defense).