15 April 2014 Last updated at 08:09
Authorities in Phoenix have confirmed former pro wrestler The Ultimate Warrior died of cardiovascular disease.
The wrestler died at his Arizona hotel on 8 April, days after being inducted into the WWE Hall of Fame.
A Maricopa County spokeswoman delivered the findings after an autopsy was conducted by the county Medical Examiner’s Office.
The 54-year-old, whose birth name was James Hellwig, appeared at Monday Night Raw on 7 April and WrestleMania 30.
The death is not being treated as suspicious.
Cardiovascular disease includes all the diseases of the heart and circulation including coronary heart disease (angina and heart attack), heart failure, congenital heart disease and stroke.
It is also known as heart and circulatory disease.
WWE (World Wrestling Entertainment) published a statement following his death which read: “WWE is shocked and deeply saddened to learn of the passing of one of the most iconic WWE Superstars ever, The Ultimate Warrior.”
It added: “Warrior is survived by his wife Dana and his two daughters.”
Other high profile names posted messages of condolence on social media when they heard the news.
“Saddened to announce the passing of the Ultimate Warrior. Icon and friend. My sympathy to his wife Dana and his daughters,” wrote Triple H on Twitter.
“Heartbroken. My sincerest condolences go out to The Warrior’s family,” said Daniel Bryan.
He added: “Seeing how much he loved his daughters and his wife this weekend makes it all the more heartbreaking.
“The Ultimate Warrior was my favourite as a kid, and getting to speak to him this weekend was one of my favourite moments. He was so nice to me.”
The Ultimate Warrior started his World Wrestling Entertainment career in 1987 and soon became one of its most high profile stars.
“We are grateful that just days ago, Warrior had the opportunity to take his rightful place in the WWE Hall of Fame and was also able to appear at WrestleMania 30 and Monday Night Raw to address his legions of fans,” said the WWE statement.
“WWE sends its sincere condolences to Warrior’s family, friends and fans,” it added.
WrestleMania 30, which took place in New Orleans on Sunday 6 April, saw the return of Hulk Hogan to presenting duties and the end of the Undertaker’s winning streak.
According to official figures, “attendance was a sold-out crowd of 75,167, with guests from all 50 [US] states and 37 countries”.
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