The massacre at Columbine High School on Aug. 20, 1999, became the largest school shooting in U.S. history at the time. It left 12 students, one teacher and both gunmen dead.
This story is part ofColorado at 150. Each Fifty for 150 story focuses on an event that helped define Colorado over 150 years of statehood. Newsline is publishing one Fifty for 150 story every weekday in reverse chronological order until the sesquicentennial, Aug. 1, when the final of 50 stories, about the declaration of statehood, will appear.
The shooting in Littleton was one of the first school shootings to be broadcast live on national television, making Columbine infamous across the U.S…