Death Certificate: Cardiac arrest led to Hugh Hefner's death

Playboy Magazine's 2013 Playmate of the Year ceremony held at the Playboy Mansion. Featuring: Hugh Hefner Where: Holmy Hills, California, United States When: 09 May 2013 Credit: FayesVision/

Playboy mogul Hugh Hefner died after experiencing a cardiac arrest, respiratory failure after suffering with a recent bout of E. coli, according to The Blast.

The celebrity news site reports Hefner's death certificate lists the ailments, noting his E. Coli issue was "resistant to antibiotics."

Hefner's estate previously stated he died of natural causes at his home in Los Angeles.

Of note - his official occupation: "Playboy founder."

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