Washington Navy Yard shooting | |
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![]() Freeze-frame shot of CCTV footage of Aaron Alexis in building 197 holding a Remington 870 shotgun | |
Location | NAVSEA Building 197, Washington Navy Yard, Washington, D.C., U.S. |
Coordinates | 38°52′28.7″N 76°59′54.7″W / 38.874639°N 76.998528°W |
Date | September 16, 2013 8:16 – 9:25 a.m.[1][2] (EDT) |
Attack type | Mass shooting, mass murder, shootout |
Weapons |
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Deaths | 13 (including the perpetrator)[6] |
Injured | 8 (3 from gunfire)[7] |
Perpetrator | Aaron Alexis |
Motive | Unknown |
The Washington Navy Yard shooting occurred on September 16, 2013, when 34-year-old Aaron Alexis fatally shot 12 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 took place in the Navy Yard's Building 197; it began around 8:16 a.m. EDT and ended when police killed Alexis around 9:25 a.m. It is the deadliest mass shooting in Washington, D.C. history, as well as the second deadliest mass murder on a U.S. military base, behind the 2009 Fort Hood shooting.