What really turned Aaron Hernandez from NFL superstar into convicted killer?

As seen in American Sports Story: Aaron Hernandez...alleged childhood abuse, hidden sexuality, severe brain trauma, paranoia, drugs, football culture, and the pressure of living a double life may all have contributed to an escalating pattern of violence.

In this episode, forensic psychologist Dr. Rachel Toles unpacks the shocking layers behind the case, why so many warning signs were overlooked, and the chilling question at the center of the case: could this all have been prevented?

See omnystudio.com/listener for privacy information.