Watch Massacre at Columbine High

Massacre At Columbine High chronicles the final hour that saw the worst high school massacre in American history. On the morning of April 20, 1999, in the affluent suburban town of Littleton, Colorado, Columbine High students Eric Harris and Dylan Klebold shot and killed 12 students and one teacher, injured 23 others and then turned the guns on themselves.

Massacre at Columbine High is a series that is currently running and has 1 seasons (1 episodes). The series first aired on September 12, 2004.