Former New England Patriots star Aaron Hernandez had a severe case of the degenerative brain disease chronic traumatic encephalopathy, researchers said on Thursday. His lawyer announced a lawsuit against the NFL and the team, accusing them of hiding the true dangers of the sport.
Dr. Ann McKee, the director of the CTE Center at Boston University, said Hernandez had Stage 3 (out of 4) of the disease, which can cause violent mood swings, depression and other cognitive disorders.
"We're told it was the most severe case they had ever seen for someone of Aaron's age," attorney Jose Baez said.
Hernandez killed himself in April in the prison cell where he was...