Autopsy on Slipknot Bassist Inconclusive Autopsy on Slipknot Bassist Inconclusive Autopsy on Slipknot Bassist Inconclusive Iowa police say an autopsy has failed to determine how Slipknot bassist Paul Gray died at a suburban Des Moines hotel. (May 25) From: AssociatedPress Views: 118 2 ratings Time: 01:10 More in Entertainment Related posts: Jackson family want second autopsy