A Cookeville police officer is expected to make a full recovery from a concussion he suffered in a motorcycle accident on Tuesday. Authorities say Lt. Randy Brown, a 20-year veteran of the department, was operating a police motorcycle westbound on Neal Street when he hit a patch of black ice near Maple Avenue, causing the cycle to skid and then strike a curb. Brown was thrown from the cycle and -- as a result -- suffered a concussion. He was transported to Cookeville Regional Medical Center for treatment, where he was listed in guarded condition. Police say Brown was taking the motorcycle to have a video camera installed on the unit.