Autopsy results on wrestling legend James Hellwig, better known as The Ultimate Warrior, revealed he died of cardiovascular disease, according to a report from ESPN.

Hellwig died April 8 at an Arizona hotel just days after being inducted into the WWE Hall of Fame. He was 54.

The Maricopa County examiner's office said his death was of natural causes and that there were no signs of drugs or alcohol being a factor. Scottsdale police said that there were no signs of foul play.