An employee at FedEx's Airport Road facility in Kennesaw, Ga., said the suspect who opened fire early Tuesday was carrying bullets strapped to his chest "like Rambo."

The 19-year-old suspect, who was reportedly a loader at the facility, carried a rifle and "looked like he was heading to war," the employee told the Atlanta Journal-Constitution.

At least six people were taken to WellStar Kennestone Hospital. Three of those people were listed in critical condition. The suspect, who has not been identified, is dead.