Former New England Patriot football player Aaron Hernandez showed signs of Chronic traumatic encephalopathy, or CTE, a brain diseased associated with trauma linked to playing football, according to an examination conducted by Boston University. A neurological examination of Hernandez’s brain performed by Dr. Ann McKee, professor of pathology and neurology at BU, said based on her findings, Hernandez showed signs of stage 3 or 4 CTE, representing the most severe form of the disease, according to a news release. Hernandez was found not guilty on double homicide charges in April. He was serving a life sentence for first-degree murder in a separate trial that took place in 2015. Five days after his not-guilty verdict, the ex-Patriot was found dead in his cell of an apparent suicide. A number of former NFL players have been diagnosed with CTE. Hernandez’s lawyer is said to be filing a lawsuit against the National Football League related to the BU findings, according to Deadspin.