Federal prosecutors are considering federal charges against Luigi Mangione, accused of murdering United Healthcare CEO Brian Thompson, sources told NBC News. Mangione was indicted Tuesday on first-degree murder and terrorism-related charges, and that case would take priority if federal charges are filed. Authorities say Mangione targeted Thompson because of United Healthcare’s prominence as the largest private health insurer in the U.S. Manhattan DA Alvin Bragg stated that Thompson's ambush killing was meant to incite shock and intimidation. Mangione’s attorney criticized the potential federal charges as overreach, citing double jeopardy concerns.