8:06 PM ET
ENGLEWOOD, Colo. — Former Denver Broncos wide receiver Demaryius Thomas died from “complications of a seizure disorder,” according to an autopsy report from the Fulton County (Ga.) Medical Examiner’s office.
Portions of the report were shared with ESPN on Friday. Thomas was found dead in his Roswell, Georgia, home on Dec. 9 at age 33, and an autopsy was performed the following day.
In December, the medical examiner’s office released a statement that “the cause and manner of death are pending the completion of laboratory studies and microscopic tissue samples.” In the final report, the medical examiner said the manner of Thomas’ death remains undetermined and it was unknown if the seizure disorder was the result of natural causes or due to impacts to Thomas’ head during his NFL career.
Last month, researchers at Boston University told ABC News that Thomas had suffered from chronic traumatic encephalopathy (CTE), a degenerative brain disease, but said that CTE had not caused his death. The autopsy report said those same researchers said they did not believe Thomas’ CTE caused the seizure disorder.
The autopsy report revealed that Thomas, who was found dead in the shower, had traces of nicotine and marijuana in his system,