Columbine High School anniversary

It was eight years ago today that two students opened fire at Colorado's Columbine High School.

The governor has asked residents to pay tribute to the Virginia Tech shooting victims, as they reflect on the columbine tragedy.

Columbine High School in Littleton, Colo., is closed today, as it has been every April 20th since 12 students and a teacher were shot to death there in 1999.

The student who opened fire at Virginia Tech this week said the two students who did the Columbine killings were martyrs.