Columbine High School Massacre
![Columbine Students Exit](https://allthatsinteresting.com/wordpress/wp-content/uploads/2018/08/columbine-students-exit.jpg)
Steve Starr/Corbis via Getty ImagesStudents run out of the Columbine High School, where two gunmen went on a shooting spree and murdered 14 before killing themselves. April 20, 1999.
High school seniors Eric Harris and Dylan Klebold planned and executed a violent school attack on April 20, 1999, at Columbine High School in Jefferson County, Colorado. The pair killed 12 students and one teacher, and injured 21 more.
There was a flurry of activity between the time that Harris and Klebold entered the school and their subsequent suicides. Several students believed they saw a third shooter in the chaos, leading Truther.org to suggest a cover-up: the shooting was really orchestrated by U.S. governmental agencies.
The website reposted a forum discussion in which one author insisted that Harris and Klebold “were long-term subjects of a variety of mind control and indoctrination experiments and projects” by the government.
![Columbine Shooters Cctv](https://allthatsinteresting.com/wordpress/wp-content/uploads/2018/08/columbine-shooters-cctv.jpg)
Jefferson County Sheriff’s Department via Getty ImagesColumbine High School shooters Eric Harris and Dylan Klebold in a surveillance tape in the cafeteria at Columbine High School. April 20, 1999.
“Investigators still don’t have any evidence to show a third gunman,” said Jefferson County Sheriff’s Department spokesperson Steve Davis. Of the students who believed they saw another boy shooting, most recanted after seeing evidence that both gunmen had taken off their trench coats during the shooting. It turns out, witnesses assumed the trench-coated perpetrators and the t-shirted perpetrators were different people — but they were one and the same.