Luigi Mangione pleaded guilty Friday in Manhattan federal court to a charge involving stalking that led to the December 2024 killing of UnitedHealthcare CEO Brian Thompson.
Mangione’s attorneys are expected to argue that the federal guilty plea prevents a second prosecution under New York’s double jeopardy protections. Those rules generally prohibit trying someone twice for the same conduct.
However, Manhattan prosecutors could argue that the state murder case involves different conduct from the federal charges and therefore remains legally valid.
The report said prosecutors, Thompson’s family and UnitedHealthcare executives attended Friday’s hearing.
Mangione had previously invoked double jeopardy during a February court appearance, suggesting his defense has been preparing the argument for months.
Related Tweet:
NEW: Luigi Mangione pleads guilty to federal stalking charges in 2024 killing of UnitedHealthcare CEO Brian Thompson; ‘I shot Mr. Thompson’ pic.twitter.com/vbUcPGsRMO
— Rapid Report (@RapidReport2025) August 14, 2026
Also Read:

