Jump to navigation

Warning Signs: Identifying School Shooters Before They Strike — Now available as an audiobook

School Shooters .info
About Library Prevention Basic Search Database



The Influence of Columbine (poster format) (version 1.4) [1 p, 411 Kb]

This large-format poster shows all attacks influenced by Columbine, arranged in a timeline format, with attack details and lines of influence.

Related to Incident: 
Columbine High School

Copyright © 2008–2023 by Peter Langman, Ph.D.

Published by Langman Psychological Associates, LLC.

Support The Site

Last update: 14 March 2023