I think that Sherman Skolnick is wrong about the motive for Vince Foster's death. I have no doubt that Saddam has the goods on Daddy Bush, as did Noreiga.
In context of recent events, I think Foster interfered with the WTC bombing back in '93. Sessions had just been fired because he did such a good job rounding up Ramzi Joseph et al.(That could only make sense in Clinton's regime). It is reputed that Vince was NSA and could have done the ground work for avoiding terrorist activity on our homeland and the apprehension of the terrorists (especially since we see the cozy relationship the Rose Law Firm had with BCCI). Waco troubled Foster since it was the beginning of the "shock therapy" by the usual suspects.
That which was "within Vince Foster" that caused him to be suicided was an inability to create CIA havoc on American soil.