No way. It was definitely the Yellow Mustard/Soy Sauce Shooters she was doing that killed her.
Fill a shot glass with mustard, float the top 1/4" with Soy Sauce. Down with a Slimfast Chaser and an injection of Methadone and you're ready for a night on the Town!
RIP, Anna-Nichole. Everyone's good for something, and you were a perfect Morality Tale.
Actually I felt sorry for her.