20 Apr 1999 Jahr - Columbine High School Massacre

Beschreibung:

The Columbine High School massacre was a school shooting and attempted bombing that happened on April 20, 1999, at Columbine High School in Columbine, Colorado, United States. The shooters, two senior students Eric Harris and Dylan Klebold, murdered 12 students and one teacher.

Added by Myra

Needs an editor and more description of the signficance of this event in US History