The victim, a 22-year-old man, is a part-time employee but was simply visiting the restaurant at the time.
According to investigators, two men walked in the door and announced a robbery.
The men then hit the victim, and the manager, in the face with pepper spray.
One of the men struggled with the 22-year-old, who also works as a security guard, over his gun.
That gun went off and struck the victim.
The two suspects took the gun then fled in a white Chrysler with heavily tinted windows.
The victim was taken to the hospital in stable condition.
No money was taken.