FBI reports increase of active shooter events, 2002-12
On April 20, 1999, two Columbine High School students killed twelve classmates and a teacher in Littleton, Colo. 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.
7701 Las Colinas Blvd., Ste. 800, Irving, TX 75063