i think you may be right, but if not we are as you said FUBAR. We are really getting down to the line i am not sure how much longer this can go on with out snapping. The issue is why are there no criminal charges pending currently, or why is he not currently under arrest. Impeachment does nothing about criminality. SO how does that angle play with what you suggest.
death should not matter, dig those fuckers up and put them on the stand.