|Critical Incident Debriefings
Sheriff's Office Communications Center
Critical Issues -- First Response
Radio Frequencies Used During Columbine High School Incident
The Columbine High School Shootings Timeline
Fire Agencies and Support Provided
Law Enforcement Agencies and Support Provided
Managing the Incident
Shootings At Columbine High School Transcript
Shootings At Columbine High School Radio Transcript
On a sunny spring day in April 1999, a suburban high school in Jefferson County, Colorado, found itself under attack by two of its own. In less than fifteen minutes of the first-lunch period on that Tuesday, two student gunmen killed 13 and wounded 21 before they turned the guns on themselves – the most devastating school shooting in U.S. history.
Columbine High School is one of three in the unincorporated southeast portion of Jefferson County. The county itself lies on the west side of the Denver metropolitan area and is the most populated county in the state. The large unincorporated region along the county’s southern plains and foothills has a population of nearly 100,000 residents - 1,945 of who attended Columbine High School.
But it wasn’t a prank. Not when two hate-filled students, heavily armed
with firearms and bombs, chose April 20, 1999, as the day to attack and kill
students and faculty at their school.