Sports Ex-NFL wide receiver Demaryius Thomas had stage 2 CTE at the time of his death July 5, 2022 Tom Schad, USA TODAY Comments Off on Ex-NFL wide receiver Demaryius Thomas had stage 2 CTE at the time of his death Demaryius Thomas had been suffering from seizures when he died suddenly at 33. But doctors say he also had stage 2 chronic traumatic encephalopathy.