Hector Torres, 19, was still in high school when he was arrested. He has pleaded not guilty to all charges in Richmond County Superior Court. His trial is expected to take several days.
Torres; Hamlet H. Perdomo, 25; and Michael Rewis, 21; are accused of killing 56-year-old Carl Bush Sr. on Sept. 11, 2010, on Reynolds Street in downtown Augusta.
Additional charges including rape, assault and robbery were filed in connection with other crime victims.