Marshawn Kneeland’s CTE Diagnosis | Texas News

Texas News Today | 2 Min News | The Daily News Now! · Jul 8, 2026 · 1m

Marshawn Kneeland, the 24-year-old former Dallas Cowboys defensive end who died by suicide in a high-speed police chase, was found to have early-stage chronic traumatic encephalopathy — a degenerative brain disease linked to repeated head trauma. Diagnosed posthumously by Boston University researchers, his case underscores the hidden toll of CTE, which can only be identified after death and is tied to mood swings, impulsivity, and depression. Despite modern safety measures and concussion protocols, experts like Dr. Chris Nowinski stress that CTE stems from cumulative head impacts — not just…