Family: Rocker Tom Petty died of accidental drug overdose

LOS ANGELES, Calif. (FOX 11 / AP) - Tom Petty's family says his death last year was due to an accidental drug overdose.

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.