"When he was found we know that he had a shotgun. It was the only weapon he had at that time... He deceased from what we believe was a self-inflicted gunshot wound," the sergeant said.
http://abcnews.go.com/US/fedex-shooting-results-multiple-injuries/story?id=23511924
The six injured were taken to WellStar Kennestone Hospital.
Two of the injured, a 28-year-old man and a 52-year-old woman were in surgery and their injuries were called life threatening, by a hospital spokesman. The man was on a ventilator, the hospital said.
A third person, a 22-year-old man, was also listed as critical condition.
The other victims included a man, 38, who was in stable condition, a woman, 42, who was treated and released, and a man, 19, who about to be released.
A doctor from the facility said the wounds "appear to be (the result of) shotgun blast projectiles."
It looks like the initial reports of him carrying an assault rifle and looking like Rambo were incorrect. Early reports are usually full of errors.