Luigi Mangione is expected to plead guilty to federal charges, sources tell NBC News

Luigi Mangione is expected to plead guilty to federal charges in connection with the 2024 killing of UnitedHealthcare CEO Brian Thompson in Manhattan, according to sources familiar with the matter. NBC News legal analyst Misty Marris reports on what kind of prison time Mangione could potentially be looking at, as well as what charges he may plead guilty to.