The disease has been linked to a host of symptoms, including aggressive, impulsive behavior and even suicidal thoughts. In many cases, families and friends of players found to have had C.T.E. say that the symptoms were uncharacteristic of the person they knew and that they became more pronounced over time. “His mental health degraded fast and terribly bad,” she said. Adams does not appear to have left a note that tried to explain his motives, and such messages are often considered unreliable.

Source: New York Times April 15, 2021 22:54 UTC