The cause of death was in a sense irrelevant. Anna Nicole was travelling 200 mph on a highway to hell with her death-oriented drug-addled life style.
However that lawyer, Howard Stern, gives me the creeps. He is the typical sociopath shyster and capable of anything, including murder or homicide by neglect.
He was enabling her at break neck speed with PROFIT on his mind. He'd sell his mother if the price was right.