Dallas Cowboys player who died by suicide diagnosed with brain disease
Marshawn Kneeland had early chronic traumatic encephalopathy, which is caused by head impacts and has been found in dozens of former NFL players.
Last updated: 2026-07-08 23:58:52 ET
Marshawn Kneeland had early chronic traumatic encephalopathy, which is caused by head impacts and has been found in dozens of former NFL players.
Kneeland died by suicide in 2025 after police chaseResearchers determine he was in stage one of fourBrain disease can be diagnosed only after deathFor...
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