Columbine: Understanding Why
200750 minutes
Park Dietz

The 1999 shootings that took place at Colorado's Columbine High School shocked the country. In the middle of the investigation was the Threat Assessment Group, a task force assigned to figure out what drove these teenagers to go so far. By examining the physical evidence from the crime scene and gathering other clues, these specialists look for ways to prevent events like this from ever happening again.

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