Aaron Hernandez's 'American Sports Story': Psychologist looks at where NFL superstar's demise may have started

This story discusses suicide. If you or someone you know is having thoughts of suicide, please contact the Suicide & Crisis Lifeline at 988 or 1-800-273-TALK (8255).

It's been over seven years since former New England Patriots tight end Aaron Hernandez committed suicide after being convicted of murder in Massachusetts. As a new series refocuses attention on the case, a forensic psychologist believes his traumatic childhood and significant brain injuries may have been factors leading to his fall from sports stardom.