A soldier stands guard at the front gate of the Washington Naval Yard in Washington, D.C.
A soldier stands guard at the front gate of the Washington Naval Yard in Washington, D.C. Abaca Press/MCT
A soldier stands guard at the front gate of the Washington Naval Yard in Washington, D.C. Abaca Press/MCT

Alleged D.C. gunman reportedly heard voices, had checkered past

September 17, 2013 7:25 PM