Mass Shootings in the United States
Washington Navy Yard Shooting
Washington, D.C., U.S.
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 Alexis was killed by police around 9:25 a.m.