The man accused of shooting a Tulsa Police officer last month now faces a federal indictment.
Police body cameras show John Chatman pulling out a gun and shooting Sergeant Mike Parsons, who was hit in the leg.
A federal grand jury indicted Chatman Thursday for obstruction of justice by attempting to kill a witness.
If convicted, Chatman faces a maximum penalty of 10 years in prison and a $250,000 fine for the felon in possession of a firearm and ammunition charge; a maximum penalty of 30 years in prison and a $250,000 fine for the obstruction of justice by attempting to kill a witness charge; and a mandatory minimum penalty of 10 years in prison, consecutive to any other term of imprisonment, and a $250,000 fine for the carrying, using, and discharging a firearm during and in relation to a crime of violence charge, a news release says.
Chatman also faces charges of shooting with intent to kill in state court.