Columbine: Understanding Why Season 1 Episode 1 Columbine: Understanding Why

The country was shocked by the shootings in 1999 that took place at Colorado's Columbine High School. While the investigation was going on the Threat Assessment Group, a task force assigned to figure out what drove these teenagers to go so far, examined the physical evidence from the crime scene and gathered other clues, these specialists looked for ways to prevent events like this from ever happening again.