CTE

Former Cowboys defensive end Marshawn Kneeland had early stage CTE when he died at 24

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Former Cowboys Defensive End Marshawn Kneeland Diagnosed with Early-Stage CTE at Age 24 Upon His Death Former Dallas Cowboys defensive end Marshawn Kneeland, who died by suicide in November 2025, had early-stage chronic traumatic encephalopathy (CTE), a brain condition linked to repeated concussions. His family revealed the diagnosis after the Boston University CTE Center analyzed … Read more

Former Cowboys edge rusher Marshawn Kneeland diagnosed with CTE after death at age 24

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Former Cowboys Edge Rusher Marshawn Kneeland Diagnosed with CTE Following His Passing at Age 24 Former NFL player Marshawn Kneeland died at 24 from a self-inflicted gunshot wound and was found to have stage 1 chronic traumatic encephalopathy (CTE) after his death. Researchers from Boston University diagnosed him through postmortem analysis, revealing CTE in nearly … Read more

Former NFL star Aldon Smith’s brain to be donated for CTE research after death at 36

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Former NFL Star Aldon Smith’s Brain to Be Donated to CTE Research Following His Passing at 36 The family of former NFL star Aldon Smith, who passed away suddenly at 36, is donating his brain to the Boston University CTE Center to study the impacts of repeated brain injuries. Smith died shortly after delivering pizzas … Read more