Summary: troubled civilian contractor and U.S. Navy veteran who had been named as the lone gunman involved in a deadly Navy Yard mass shooting when he allegedly opened fire and fatally shot at least 12 civilian employees and critically wounded three others including a police officer at the headquarters of the Naval Sea Systems Command (NAVSEA) inside the Washington Navy Yard in Southeast Washington, D.C., in which it became the second-deadliest mass murder on a U.S. military base after the Fort Hood shooting in November 2009.
Cause of Death: Shot and killed by police during a shootout
Born: May 9, 1979
Died: September 16, 2013
Location: Washington, D.C.