Dallas Cowboys' Marshawn Kneeland diagnosed with CTE after death by suicide, researchers say

Dallas Cowboys' Marshawn Kneeland diagnosed with CTE after death by suicide, researchers say
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Dallas Cowboys defensive end Marshawn Kneeland was suffering from stage 1 chronic traumatic encephalopathy, or CTE, when he died by suicide last year. Scientists at the Boston University CTE Center made the diagnosis following post-mortem brain tissue analysis, according to a statement Tuesday fr...