Something's Wrong - Diane Schuler

The episode investigates the devastating 2009 Taconic State Parkway crash where Diane Schuler drove erratically, killing eight people, including herself and four children in her minivan. Despite a damning toxology report, many witnesses claim that Diane was just fine throughout the morning. Schuler's husband and family denied substance use, claiming a medical emergency was to blame. What was really long with Diane and what caused the crash?