11 h 31 m, 20 abr 1999 año - Klebold shouted "Everybody get up! We're gonna blow this library up!" One of the gunmen stated "This is our revenge" and "This is for all you put us through this last year." Klebold shouted "All jocks stand up!" When nobody stood up, Harris said to "get the guys in white hats." One of them said "Anybody with a white hat or a sports emblem on it is dead". (Cinta de tiempo)