Given the similarities between the shooters at Columbine and Martin Peyerl and the short amount of time between their respective rampages, it is possible Peyerl was influenced by the massacre at Columbine High School on April 20, 1999. Martin commented one day leading up to November 1, 1999 that it was "completely crazy what these guys have done" and that he believed Harris' and Klebold's actions to be "something we should do".