The Santa Clara County Coroner's Office said Tuesday an autopsy revealed the 71-year-old actor died "a sudden cardiac death due to atherosclerotic and hypertensive heart disease."
Heard was found dead July 21 in a hotel in Palo Alto. He was recovering from back surgery at Stanford University Medical Center.
The coroner's office says his back surgery did not play a role in his death.
Heard's many roles included the father in the Home Alone and...