How did the rev from avenged sevanfold die?

I herd it march 27th 2010.I was wondering how he died.

According to http://www.msnbc.msn.com/id/34617808/ the autopsy was inconclusive (they don't know how he died) but they ordered toxicology reports (they took samples of his bodily fluids and sent them to a laboratory to be tested to determine what they are and how much is in him) that haven't come back yet (they take a few days), but considering his blatant open drug use, he probably OD'd on something (which will be revealed by the toxicology report when the results come in.

So the bottom line is: Nobody knows yet.

He had a drug overdose.