NASCAR Xfinity Series crew chief Nick Harrison's July death has been ruled to be accidental after autopsy and toxicology reports by the North Carolina medical examiner showed he had cocaine, oxycodone and alcohol in his system when he died, according to multiple reports.
Fox Sports first reported the findings.
Harrison, 37, had 0.14 milligrams of cocaine per liter of blood in his system, 0.32 milligrams per liter of prescription opioid oxycodone and a blood alcohol level of 0.08%. Harrison also had an enlarged heart and a history of sleep apnea, but those factors weren't ruled to have contributed to his death.
Harrison was the crew chief for Justin Haley's Kaulig Racing team. He was found dead the morning of July 22, a day after an Xfinity race at New Hampshire Motor Speedway in Loudon.
The investigation showed Harrison returned from New Hampshire at 11 p.m. ET on July 21 and went to a friend's home, before returning to his home at 4:30 a.m., where he was found not breathing two hours later, Fox Sports reported.