Former Cowboys Kneeland Had Early CTE at 24

Former Dallas Cowboys defensive end Marshawn Kneeland had early stage chronic traumatic encephalopathy when he died by suicide at age 24 in November 2025 following a high-speed police chase, his family announced Tuesday. The Boston University CTE Center determined Kneeland was in stage one of four of the brain disease linked to repeated concussions, which can only be diagnosed after death. cat-cross.com