Columbine high school shootings fast facts April 5, 2017

CNN

(CNN)Here is some background information about the deaths of 13 people at Columbine High School in Littleton, Colorado, on April 20, 1999.

Facts: Twelve students and one teacher were killed by students Dylan Klebold, 17, and Eric Harris, 18. The pair made home videos prior to the attack making references to what they were going to do and apologizing to .. Source: