On , high school senior students Eric Harris and Dylan Klebold murdered 13 students [c] and one teacher in a school shooting and attempted bombing at Columbine High School in Columbine, Colorado, United States.

The Columbine High School shooting occurred on , at Columbine High School in Littleton, Colorado, United States. Fourteen people, not including the two shooters, died in what was one of the worst mass shootings in U.S. history at the time.

Columbine was a major school shooting on at Columbine High School in Littleton, Colorado.

On , the Columbine High School Massacre in Littleton, Colorado shook America to its core. Though it was far from the first school shooting in U.S. history, it was the deadliest of its kind up until that point and the first to unfold in the era of round-the-clock news coverage.

Columbine timeline The Denver Post - A timeline of events: : Seniors Eric Harris and Dylan Klebold storm Columbine High School shooting four guns and carrying dozens of pipe bombs. They kill 12 classmates, one teacher and then themselves. They also wound 23 others in the worst school shooting in U.S. history. APRIL 21: Jefferson County schools Superintendent Jane Hammond closes ...

Columbine High School Massacre (1999) – A Full Documentary on the Tragedy That Changed America On , two students—Eric Harris and Dylan Klebold—carried out one of the deadliest...