Manhattan DA argues Luigi Mangione's federal guilty plea covered a 'different evil' to state murder charge

From the Newshound archive · first published 10 October 2026.

Manhattan prosecutors filed a 49-page brief arguing that Luigi Mangione's August federal guilty plea to stalking charges does not shield him from state murder prosecution over the December 2024 killing of UnitedHealthcare CEO Brian Thompson. The DA's office insists the federal stalking counts and the state murder charge address entirely separate harms, with prosecutors writing that 'the essence of federal stalking has nothing to do with murder, and the essence of state murder has nothing to do with stalking.' Judge Gregory Carro postponed the state trial after Mangione's plea and has set December 10 as the next court date, with the defence given until October 30 to reply.

Mangione's lawyers filed their dismissal bid within minutes of his August federal plea, calling him a 'pawn in parallel prosecutions.'

Prosecutors say the murder charge requires intent to kill and proof of causation — elements absent from the federal stalking counts he admitted to.

Mangione's state-level second-degree murder, weapons and forgery charges all survive, prosecutors argue, as he faces no federal weapons conviction at all.