Luigi Mangione’s defense team discussed possible plea deal in federal case, sources say: Luigi Mangione’s attorneys discussed a potential plea agreement before negotiations fell apart, sources said. Mangione pleaded not guilty to state and federal charges after he was arrested for allegedly killing UnitedHealthcare CEO Brian Thompson in December 2024. CBS News’ Lilia Luciano has the details. #LuigiMangione #PleaDeal #FederalCase #CriminalDefense #LegalNews