Sean Kelly, 16, rubs his head as he talks about the "Trench Coat Mafia" near Columbine High School in Littleton, Colo., late Tuesday, April, 20, 1999. Two students in black trench coats swept through their suburban high school with guns and explosives in a horrifying suicide attack Tuesday that may have left 25 people dead. Several students said the killers were gunning for minorities and athletes. (AP Photo/Ed Andrieski)

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