Former NFL star Steve McNair had a blood-alcohol level that was double Tennessee's legal limit for driving when his girlfriend shot him to death.
Tennessee Assistant Medical Examiner Feng Li said there was no way to tell from the report how long before McNair's death he had been drinking.
Police have said that McNair was likely asleep when he was shot twice in the head and twice in the chest. There were no signs of a fight or argument.
The 20-year-old Sahel Kazemi shot Steve McNair, who was married, July 4 in a Nashville condo before killing herself in a gruesome murder-suicide.
Both Kazemi and McNair were found dead July 4.
Police also said Monday that a toxicology report showed a trace amount of marijuana in the body of Kazemi, who was the football star's girlfriend.
Sahel Kazemi was arrested for drunken driving in Nashville two days before the shooting. Police video showed her telling officers that she was high.
The day after that, Kazemi purchased a gun - allegedly from Adrian J. Gilliam, Jr., who has been arrested in connection with McNair's murder.