"1979-05-09"^^ . . . . "New York, New York, U.S."@en . . . . . . . . . . "On September 16, 2013, Aaron Alexis, a lone gunman armed initially with a shotgun, fatally shot twelve people and injured three others in a mass shooting at the headquarters of the Naval Sea Systems Command (NAVSEA) inside the Washington Navy Yard in Southeast Washington, D.C. The attack began around 8:20 a.m. EDT in Building 197. Alexis was killed by police around 9:20 a.m. EDT. It was the second-deadliest mass murder on a U.S. military base after the Fort Hood shooting in November 2009."@en . . "8"^^ . . "2013-09-16"^^ . . "Aaron Alexis"@en . . "CCTV footage of Aaron Alexis in building 197 holding a Remington 870 shotgun."@en . . "CCTV footage of Aaron Alexis in building 197 holding a Remington 870 shotgun."@en . "Mass murder, shooting"@en . . ""@en . "Civilian contractor, U.S. Navy sailor"@en . "NAVSEA Building 197, Washington Navy Yard, Washington, D.C., U.S."@en . "c. 8:20 a.m.-c. 9:20 a.m."@en . "*"@en . "Washington Navy Yard shooting"@en . "2013-09-16"^^ . "Aaron Alexis"@en . "13"^^ . "Washington Navy Yard shooting"@en . "American"@en . "Washington, D.C., U.S."@en . . "220"^^ . "On September 16, 2013, Aaron Alexis, a lone gunman armed initially with a shotgun, fatally shot twelve people and injured three others in a mass shooting at the headquarters of the Naval Sea Systems Command (NAVSEA) inside the Washington Navy Yard in Southeast Washington, D.C. The attack began around 8:20 a.m. EDT in Building 197. Alexis was killed by police around 9:20 a.m. EDT. It was the second-deadliest mass murder on a U.S. military base after the Fort Hood shooting in November 2009."@en . . . . . . "Gunshot wound to the head"@en .