Luigi Mangione pleaded not guilty Friday to a federal murder charge in the killing of UnitedHealthcare CEO Brian Thompson.

Luigi Mangione pleaded not guilty Friday to stalking -- travel interstate commerce, stalking -- use of interstate facilities, ...

Luigi Mangione pleaded not guilty to federal charges of stalking, a firearms offense and murder in the killing of ...

Mangione, 26, has been held in a federal jail in New York since his arrest in December. He faces separate federal and state ...

Luigi Mangione pleaded not guilty in New York federal court to the murder of UnitedHealthcare CEO Brian Thompson. Mangione ...

Prosecutors told the judge this week they intend to seek the death penalty in shooting death of UnitedHealthcare executive ...

Months after Luigi Mangione was charged in the shooting of UnitedHealthcare CEO Brian Thompson, the 26-year-old pleaded not guilty to all federal charges April 25.