Two teens were shot in the parking lot outside a crowded Hamilton Place Mall on Friday afternoon in a gang-related incident.
Injuries to Malik Beavers, 18, and Adam Bulloch, 19, were not life-threatening.
Potential suspects who were detained were later released due to review of video provided by the mall management and extensive interviews.
Police said it was determined through the interviews and video that there was a single shooter.
It happened at 3:55 p.m. in the parking lot by the Sears end of the mall.
Each of the victims was shot once and they were transported by ambulance to the hospital.
Chattanooga Police ask anyone with information to call 698-2525.