On April 20, 1999, two heavily armed teenage boys entered Columbine High School in Littleton, Colorado, and murdered 12 students and one teacher. The shooting led law enforcement nationwide to reassess response tactics to active shooter events, moving from a strategy of containment to one of Immediate Action Rapid Deployment.
When responding to an active shooter incident, you need the right stuff, you need to take out the right target and you need to address the threat right now
One of the officer's most vivid memories – and one that led him to his biggest lesson learned – occurred while standing over the bodies of the killers in the library
Minn. teen accused of planning to massacre his family and high school classmates mocked the attacks on the Boston Marathon and Sandy Hook Elementary School as "pretty lame"
Unlike Adam Lanza at Sandy Hook Elementary School in Connecticut, or James Holmes at a movie theater in Colorado, or Jared Loughner outside an Arizona shopping center, Eric Harris and Dylan Klebold did not have discernable psychiatric diagnoses