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."

If you're wearing blue to pay tribute Billy Mays, you were probably as shocked by the pitchman's death as I was. Heck, I was even more surprised by Billy's passing than I was by Michael Jackson's. The guy seemed as healthy as a horse, sporting nothing more than the slight beer gut anyone of his age that's not a fitness fanatic and lives the good life is likely to have.

So in a perverse way, some of us approaching middle age were hoping that the cause of Billy's death could have been explained by the bump on the head he got after his flight had a rough landing the day before he died. We figured it was a delayed response to head trauma, a la what happened to Natasha Richardson earlier this year.

But autopsy results, verified by Billy Mays III on his Twitter feed, showed that there was no head trauma. Mays simply died of heart disease.