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Coroners have determined that Sage Stallone died from a heart attack.

The 36-year-old son of Sylvester Stallone was found dead on July 13 by a housekeeper, and according to reports, pills were found in his room, leaving many to speculate that drugs may have played a role his death.

Toxicology reports came back negative, except for a “sub-therapeutic level of hydrocode,” which had nothing to do with his death.

Coroner officials determined Sage’s cause of death to be from natural causes, and there was evidence of heart disease. He had a history of being a heavy smoker, however, family members said he had cut back considerably.