Luigi Mangione has been indicted on murder charges for gunning down UnitedHealthcare CEO Brian Thompson earlier this month, Manhattan District Attorney Alvin Bragg announced on Dec. 17. A New York grand jury has charged Mangione, 26, with first- and second-degree murder charges and other related charges for the cold-blooded slaying of the 50-year-old CEO outside a Midtown hotel on Dec. 4, prosecutors said.