Former Dallas Cowboys defensive end Marshawn Kneeland, 24, who died by suicide in November 2025 following a high-speed police chase, is diagnosed posthumously with early-stage chronic traumatic encephalopathy (CTE). Multiple reports say his family released the results after receiving findings from postmortem analysis. According to the information shared publicly, researchers at the Boston University CTE Center reviewed Kneeland’s brain tissue and determined he had Stage 1 CTE, the earliest level in a four-stage system. The condition is described as a brain abnormality linked to repeated head impacts, which can occur in contact sports such as football. Sources also note that CTE can only be diagnosed definitively after death, based on examination of brain tissue. Several outlets frame the diagnosis as part of broader research into CTE among former NFL players, while consistently stating the key details: Kneeland’s age, the timing of his death, and the determination that the CTE was at an early stage.
Marshawn Kneeland, 24, posthumously diagnosed with early-stage CTE after suicide
Former Dallas Cowboys defensive end Marshawn Kneeland, 24, who died by suicide in November 2025 following a high-speed police chase, is diagnosed posthumously with early-stage chronic traumatic enceph...
- Marshawn Kneeland, a former Dallas Cowboys defensive end, dies by suicide in November 2025 at age 24.
- His family announced that postmortem testing found he had chronic traumatic encephalopathy (CTE).
- Researchers determined he had Stage 1 CTE (early-stage) after analyzing his brain tissue.
- Boston University’s CTE Center is identified as carrying out or overseeing the analysis.
- CTE is described across sources as a condition that can only be confirmed through examination after death.
Marshawn Kneeland had early chronic traumatic encephalopathy, which is caused by head impacts and has been found in dozens of former NFL players.
1 month agoMarshawn Kneeland had early chronic traumatic encephalopathy, which is caused by head impacts and has been found in dozens of former NFL players.
1 month agoDallas Cowboys defensive end Marshawn Kneeland had early-stage CTE at the time of his November suicide, his family revealed after receiving results of postmortem testing.
1 month agoFormer Dallas Cowboys defensive end Marshawn Kneeland, who died by suicide in November 2025 after a high-speed chase with police, was diagnosed with Stage 1 of CTE.
1 month agoKneeland died by suicide in 2025 after police chaseResearchers determine he was in stage one of fourBrain disease can be diagnosed only after deathFormer Dallas Cowboys defensive end Marshawn Kneeland, who died by suicide in November 2025 after a high-speed chase with police, had early stage chronic traumatic encephalopathy, a brain abnormality linked to repeated concussions, his family announced Tuesday.The Boston University CTE Center, which investigates the long-term consequences of repetitive brain trauma in athletes and others, analyzed Kneeland’s brain tissue after his death. Researchers determined Kneeland, who was 24, was in stage one of four of CTE.In the US, you can call or text the National Suicide Prevention Lifeline on 988, chat on 988lifeline.org, or text HOME to 741741 to connect with a crisis counselor. In the UK and Ireland, Samaritans can be contacted on freephone 116 123, or email jo@samaritans.org or jo@samaritans.ie. In Australia, the crisis support service Lifeline is 13 11 14. Other international helplines can be found at befrienders.org Continue reading...
1 month agoCowboys DE Marshawn Kneeland had CTE when he died by suicide in November. His case is not rare despite the fact he was just 24 years old.
1 month ago
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