April 6, 2012 at 8:52 AM ET
An autopsy report obtained by the Associated Press confirms that Monkees frontman Davy Jones died of a heart attack. According to the report, the 66-year-old singer had severe build-up in his arteries at the time of his death.
The report shows there were no signs of drugs in Jones' system aside from cannabinoids, a class of drugs that includes marijuana. Those drugs were determined to have played no role in his death on Feb. 29.