Active Shooter Events from 2000 to 2012


On April 20, 1999, two Columbine High School students killed twelve classmates and a teacher in Littleton, Colorado. The shooters committed suicide before officers entered the school to intervene. Outrage on the part of the public and deep introspection by the police produced massive changes in law enforcement response to ongoing acts of violence.[1] Unfortunately, active shooter events (ASEs) have continued to occur. Recent tragedies have happened at the Century 21 Movie Theater in Aurora, Colorado, and Sandy Hook Elementary School in Newtown, Connecticut. Out of 70 people shot in Aurora, Colorado, 12 eventually died. Twenty first graders, six staff members, and the shooter’s mother were murdered in Newtown. Even more recently, employees at the Washington Navy Yard in the District of Columbia were attacked. Twelve people were killed in this attack. All four of these events drew national attention.

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