Former Denver Broncos wide receiver Demaryius Thomas died of complications related to a seizure disorder, according to an autopsy report obtained by 9News' Mike Klis.
The exact manner of death reportedly remains undetermined by the Fulton County Medical Examiner's Office, which performed the autopsy the day after the 33-year-old Thomas was found dead in the shower last December.
The medical examiner also found traces of nicotine and marijuana in Thomas' system, but no signs of any other drugs, per Kevin Vaughan of the same outlet.
While Thomas has since been posthumously diagnosed with Stage 2 CTE, it is unknown if the after-effects of a 10-year NFL career contributed to his death.