Former Monkees singer Davy Jones, who died Wednesday at the age of 66, died of a heart attack, Jones' autopsy confirmed.
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The Martin County Medical Examiners Office told TheWrap that the autopsy, performed by chief medical examiner Roger Mittleman at 10:30 am EST on Thursday, revealed that Jones died of ventricular fibrillation resulting from severe coronary atherosclerosis.
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Jones' expiration was a natural death, the examiner's office said. The results of a toxicology report will likely take six to eight weeks, the medical examiner's office said.
The singer and actor was rushed from his Hollywood, Fla. home to the Martin Hospital South in Stuart, Fla. on Wednesday morning, but medical workers were unable to resuscitate Jones, according to a statement provided to TheWrap. He leaves behind a wife, Jessica, and four daughters.
Jones, who sang with the Monkees from 1965 to 1971, was known for such songs as "Daydream Believer" and "Valleri."