A Federal Guilty Plea Could Cancel Luigi Mangione's Separate Murder Trial

Luigi Mangione is expected to plead guilty August 14 in federal court to stalking charges tied to the killing of UnitedHealthcare CEO Brian Thompson. His lawyers may then argue double jeopardy — the legal rule that you cannot be tried twice for the same crime — to dismiss his separate New York murder trial, set for September 8, 2026. NBC analyst Danny Cevallos says state law may agree.