felony murder, for shooting brooks in the back. officer devin brosnan facing three charges, including aggravated assault for stepping on brooks' shoulder as he lay on the ground. and the d.a. saying today that that second officer, devin brosnan, has agreed to turn state's witness, to testify against garrett rolfe. but that officer's attorney late today denying this, saying there is no deal. abc's steve osunsami leading us off again tonight from atlanta. >> reporter: it's what the streets wanted. a murder charge in atlanta tonight for the officer seen here shooting rayshard brooks in the parking lot of this wendy's restaurant last friday night. >> the first charge is felony murder. >> reporter: garrett rolfe, who lost his job a day later, is accused tonight of felony murder and ten other charges that could cost him his life if he's convicted. officer devin brosnan, who was first to arrive on the scene, is charged with aggravated assault. the county prosecutor who made the decisions said that these photos steered his thinking. pictures of former officer rolfe kicking brooks as he's dying,