So now we know why Billy Mays was so hyped in his commercials -- he used cocaine. The autopsy results for the TV pitchman confirm that he died of heart disease, but there were also traces of cocaine in Billy Mays' system from a few days prior to his demise.

There was a family history of heart disease, and cocaine can elevate blood pressure and contribute to coronary blockages. The coroner, Dr. Chrostowski, reported that "cocaine use caused or contributed to the development of Mays' heart disease and thereby contributed to his death."

Not surprisingly, the Mays family is defending Billy's memory. Deborah Mays said, "We believe the release contains speculative conclusions that are frankly unnecessary and tend to obscure the conclusion that Billy suffered from chronic, untreated hypertension."

Still, it's kind of sad that Mays had obviously been doing something. That coke in his system wasn't Oxi-clean.