Do you research before you type?A Doctor?It was an advanced medical research team at Boston University!It was the most severe CTE found in a person his age.https://www.washingtonpost.com/sports/aaron-hernandez-suffered-from-most-severe-cte-ever-found-in-a-person-his-age/2017/11/09/fa7cd204-c57b-11e7-afe9-4f60b5a6c4a0_story.html