The Intelligence Community reserves the right to end the life of any of its own caught selling secrets or compromising national security. Sumarily and without "due process." VWF was under counter-intelligence surveilance when he died. The key questions are: Was he guilty? Or was he being framed by Clinton or others for other damage control purposes?
Foster's covered-up and lied-about death circumstances scream out that this was a government sanctioned execution.
Actually, as I recollect, Foster was the trustee managing the blind trust into which the Clinton's assets were placed subsequent to their taking office.
However, (allegedly) the trust wasn't so blind. The Clinton's were using their position and knowledge/direction of the trust's assets via Foster.
There was a requirement that the Trust's status be filed within 6 months (? memory fails) which would disclose where the Clinton's money had come from, but that was way over due, ostensibly because Foster was cooking the Trust's books to keep secret what was going on.
He was sucumbing to that pressure and ultimate scrutinty, wanted out, and was going to leave, maybe even go public, when he killed himself and then drove to Fort Macy park.
His office was rifled, and the missing contents are presumed to be the Clinton's blind trust paperwork.
This was about money and corruption, not espionage.