Sage Stallone's Cause Of Death Revealed

Sylvester Stallone's son, Sage Stallone, died as a result of a heart attack - not drugs as was previously speculated.

STORY: Sylvester Stallone's Son, Sage Stallone, Dead At 36

According to his autopsy report, no drugs were found in the movie star son's system.
As reported by TMZ:

The L.A. County Coroner has determined Sage died from natural causes.  As for why he had a heart attack, we're told there was evidence of heart disease.  
A source connected with the Coroner tells TMZ ... it was "unusual" for a person Sage's age -- 36 -- to have such advanced coronary problems, but that's what killed him.
Sage's body was found July 13th, but he may have been dead days earlier.

SOURCE: TMZ