Luigi Mangione was indicted on first-degree murder and other charges in the ambush killing of UnitedHealthcare CEO Brian Thompson this month, the Manhattan district attorney’s office announced Tuesday.

The indictment on first-murder degree in furtherance of terrorism elevates the case against Mangione, 26, in Thompson’s killing outside a Manhattan hotel on Dec. 4.

The New York state Supreme Court indictment also charges Mangione with two counts of second-degree murder, one of which is charged as a killing in the act of terrorism; two counts of second-degree criminal possession of a weapon; four counts of third-degree criminal possession of a weapon; one count of fourth-degree criminal possession of a weapon; and one count of second-degree criminal possession of a forged instrument, Manhattan District Attorney Alvin Bragg said in a statement.

Bragg called Thompson’s slaying a “brazen, targeted and premeditated shooting” at a news conference Tuesday afternoon.