Demetrius Birt, 32, was the suspect who was shot and killed last Thursday during a robbery attempt at Miller Auto Sales, 4314 Rossville Blvd. around 1:50 p.m.
The robbery victim shot the suspect. The suspect was taken to the hospital for treatment of injuries, where he later died.
Police said the shooting has been ruled a "justifiable homicide" and no charges will be brought against the victim, Alan Miller, 27.
Chattanooga Police ask anyone with information regarding this crime to call 423 698-2525.