Something alcohol related, if I recall.
I was thinking drug overdose, as it was sudden and Wee Willie refused to go into any detail.
Alcohol drunk driving, or a drunken stunt would work as well.
Or it could be Aids. Brian just never told anyone and Will aint saying.
Bottom line here: they were both DUmmies. Sudden death seems to encounter liberals much more often as they make so many poor life choices.