NEW YORK (AP) — Luigi Mangione’s guilty plea on Friday to federal stalking-to-kill charges raised immediate questions about why he decided to enter that plea, how it’ll affect his parallel state murder case and what his lawyers might do to prevent Mangione from spending the rest of his life in prison.In a stunning turn, Mangione pleaded guilty in Manhattan federal court to a pair of stalking charges and admitted that he targeted and killed UnitedHealthcare CEO Brian Thompson as the executive walked to his company’s investor conference at a Manhattan hotel in 2024.Neither Mangione nor his lawyers said why he pleaded guilty now, but they gave some clues.Immediately after his plea, Mangione’s lawyers filed paperwork seeking to have the state case thrown out on double jeopardy grounds. That trial is scheduled to begin next month, but could be pushed back or canceled altogether depending on what the judge decides.If it succeeds, Mangione’s defense team could concentrate on trying to convince the judge in his federal case, Margaret Garnett, to spare him from the life sentence that prosecutors say they intend to seek when he’s sentenced on Dec. 18.

Mangione was facing back-to-back trials and a pile of evidenceIn their double jeopardy filing Friday, Mangione’s lawyers described him as a “pawn in parallel prosecutions,” and defense lawyer Karen Friedman Agnifilo accused state and federal prosecutors of “trying to punish him twice for the exact conduct.”Indeed, Mangione remains scheduled to go to trial on state murder charges beginning Sept. 8. His federal trial — now moot because of his guilty plea — was set for January.