Although toxicology results won't be in for a few more days to a week, preliminary autopsy results into the death of the popular morning show radio personality show that he had an enlarged heart and that he had 40-80% blockage in all his arteries which probably led to an irregular heartbeat and his death on Saturday in New Orleans during a charity golf tournament. The coroner said the conditions Kraddick had at the time of his death could very well have led to his collapse. I think people want it to be the heart and not find out he was on some kind of drugs and have their image of him ruined.
Source:
http://www.crazydaysandnights.net/2013/07/kidd-kraddick-had-enlarged-heart.html