US v. Mangione (SDNY)

A four-count federal sealed complaint was filed in the Southern District of New York on December 9, 2024 charging Luigi Mangione with interstate stalking (18 U.S.C. §§ 2261A(1)(A), 2261(b)(1)), electronic-communications stalking (§§ 2261A(2)(A), 2261(b)(1)), murder through use of a firearm (§ 924(j)), and a related firearms offense involving a silencer (§ 924(c)). The complaint was sworn out by FBI Special Agent Gary W. Cobb. A federal grand-jury indictment followed. In January 2026, U.S. District Judge Margaret M. Garnett dismissed the death-penalty-eligible count, leaving Mangione facing a non-capital federal prosecution.

The federal prosecution and the parallel New York State prosecution arise from the same December 4, 2024 incident but charge distinct offenses. Their sequencing has affected each other: when the New York State trial was set for September 8, 2026, the federal trial was rescheduled to October 13, 2026. The federal case raises questions about parallel state-federal prosecution, the federal stalking statute's reach, and (until the January 2026 dismissal) the federal government's pursuit of capital punishment.