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.