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11 h 21 min, 20 avr. 1999 ans - Dave Sanders, a teacher and coach at the school, was in the cafeteria when he heard the gunfire and began warning students.

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Columbine High School Shooting Timeline

17 mars 2019

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11 h 21 min, 20 avr. 1999 ans

Maintenaint

~ Il y a 26 ans

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