LOS ANGELES _ Rocker Tom Petty died last year from "multisystem organ failure" caused by accidental drug toxicity, the Los Angeles County Coroner said Friday.
An autopsy found that Petty had several drugs in his system including fentanyl, oxycodone, temazepam, alprazolam, citalopram, acetylfentanyl and despropionyl fentanyl, the agency said.
"A lot of these are found in prescription drugs," said Brian Elias, a coroner's spokesman.
Petty, 66, also had suffered from coronary artery atherosclerosis and emphysema.
Found unconscious at his Malibu home, Petty was taken to UCLA's Santa Monica hospital in full cardiac arrest and died Oct. 2.
Petty had just completed an extensive tour to mark the Heartbreakers' 40th anniversary. It concluded Sept. 25 with a three-night homecoming stand that sold out at the Hollywood Bowl.
