The Washington Navy Yard shooter — identified as Aaron Alexis, 34, a former Navy aeronautics electrician from Fort Worth, Texas. Alexis apparently entered the yard using a stolen ID that belonged to Rollie Chance, a civilian Navy employee placed on administrative leave nearly a year ago.
For reasons not yet explained, Chance’s ID was still valid and allowed Alexis to enter a building and open fire on the victims.
Police originally said they were looking for two additional gunmen but said later that one potential suspect had been located and cleared. A second person is still being sought.