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11h 21min, apr 20, 1999 y - Dave Sanders, a teacher and coach at the school, was in the cafeteria when he heard the gunfire and began warning students.
Added to timeline:
Columbine High School Shooting Timeline
By
Mark
17 Mar 2019
1
0
1974
Date:
11h 21min, apr 20, 1999 y
Now
~ 25 years ago
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