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Soft Targets and Crowded Places (ST-CP)
Mass Shooting Prevention and Research Library (MSPRL)

Columbine High School, Columbine, Colorado, Mass Shooting – April 20, 1999
Audio Files

The mass shooting on April 20, 1999, at Columbine High School in Columbine, Colorado, where 13 people were killed and 23 others injured is best known for it being the watershed school shooting.

—These audio files have been independently verified by official government sources as being authentic.

—These audio files are on our proprietary servers.

—All of these audio files have been tagged by government officials as having been redacted. This generally only means that callers who stated their name and/or other identifying information has been deleted for privacy reasons. Generally, redaction in these cases results in a beep or tone being inserted where the identifying information was. Generally, this is not an attempt to withhold information or be less than completely transparent.

—These audio files are in MP3 format.

—These audio files are presented in the order they were received which may or may not be logical.