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The surviving family members of former NHL player Greg Johnson have revealed he was suffering from the degenerative brain disease chronic traumatic encephalopathy (CTE) at the time of his suicide five years earlier. Johnson's widow and daughters released the findings of his post-mortem brain tissue analysis, which Boston University CTE Center doctors say contained CTE. However, they have cautioned that the presence of CTE should not be considered a definitive cause for his 2019 suicide.