UPDATE: Rock superstar Tom Petty's death due to accidental drug overdose

Tom Petty's family says his death last year was due to an accidental drug overdose.

His wife and daughter released the results of Petty's autopsy via a statement on his Facebook page Friday night. Dana and Adria Petty say they got the results from the coroner's office earlier in the day that the overdose was caused due to a variety of medications.

The statement was posted moments before the Los Angeles coroner's office issued its official findings, which confirmed that Petty had a variety of medications, including fentanyl and oxycodone in his system.

They say Petty suffered from emphysema, a fractured hip and knee problems that caused him pain but he was still committed to touring.

He had just wrapped up a tour a few days before he died in October at age 66.

Rock superstar Tom Petty has died at age 66.

Spokeswoman Carla Sacks says Petty died Monday night at UCLA Medical Center in Los Angeles after he suffered cardiac arrest.

Petty, usually backed by his longtime band the Heartbreakers, was known for such hits as "Free Fallin,'" "Refugee" and "American Girl."

The Gainesville, Florida native with the shaggy blond hair and gaunt features drew upon the Byrds, the Beatles and other musicians he loved while growing up in the 1960s.

He was also a member of the impromptu supergroup the Traveling Wilburys, which included Bob Dylan, George Harrison, Roy Orbison and Jeff Lynne.

Petty and the Heartbreakers had recently completed a 40th anniversary tour, one he hinted would be their last.

Petty, whose worldwide sales topped 80 million records, was inducted into the Rock Hall of Fame in 2002.

Rock star Tom Petty reportedly was taken off of life support Monday after suffering full cardiac arrest Sunday night, TMZ reports.

Petty, 66, has had many hits and became famous with Tom Petty and the Heartbreakers in the late 1970s.

TMZ reports that Petty was found unconscious and not breathing at his home in Malibu, California.

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