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This file concerns the April 20, 1999 attack at Columbine High School in Jefferson County, Colorado, by Eric Harris and Dylan Klebold. The records state that the FBI's role was to assist Jefferson County authorities with evidence response teams, bomb technicians, interviews, liaison with ATF and prosecutors, and Rapid Start lead management. The released pages include FD-302 witness interviews from school staff and students, investigative summaries, electronic communications, and teletypes from April 1999. They document witness accounts from the cafeteria, library, kitchen, and auditorium areas, efforts to trace weapons and bomb materials, computer and internet evidence, AOL chat tips, and follow-up on possible threats or Columbine-related claims in other states.

FBI file number: 174A-DN-57419 | Documents span: 1999 | Released in 4 parts
Names in this file: Eric Harris, Dylan Klebold, Dave Sanders, Clay Whittle, Bob Enyart, Robert Burnham, Steve Wiley
Subjects: school shooting, mass murder, bombing, firearms, internet leads, witness interviews