Last month, “Home Alone” actor John Heard passed away at the age of 71.
TMZ reports that Heard's cause of death at a hotel in California has been determined to be a heart attack. The Santa Clara County Medical Exmainer's Office revealed that Heard had a "sudden cardiac death due to atheroscerotic and hypertensive heart disease.”
Two days before his out-of-nowhere death, he underwent minor back surgery at Stanford Medical Center. The operation “did not play a role in his death.”
A toxicology test was also performed, but the results are not yet public.