What was the columbine high school shooting?

April 20. 1999 in Colorado Erik Harris & Dylan Klebold went into the school at 11:19am, they'd set up a bomb to go off at 11:14 to distract law enforcement so as they could carry out the massacre, and began to shoot people in the cafeteria. At 11:22 the police responded to the 911 call. 11:29-11:36 they went to the library and began shooting people. At 11:35 the massacre was over having killed 13, and wounded 24 (21 by gunfire). At 12:08 the two counted to 3 & shot themselves in the head, committing Suicide.

The reasons sighted for this were because the two boys were being bullied, members of the football team had sprayed them w/ketchup & mustard and called them derogatory names. They were NOT popular. Video games, music, Goth-culture all were used as a maybe as to why it happened.

Occurred on April 20th, 1999 in the state of Colorado. Two popular male students murdered 12 people and one teacher and wounding over 20.