He was involved I have no doubt but I have always maintained the thought it was masterminded by Islamic enemies of the state, and US officials at that time were jumping over each other trying to get the blame away from any Moslem group.
and to get the blame placed on those who were grumbling about government abuse of authority ala Waco and Ruby Ridge, and who could be associated with people like McVeigh.
There were a series of Al Quaeda attacks on US targets during Clinton’s watch; the attacks at Rhiyad, the 1993 Trade Center bombing, two US embassy bombings in Africa on the same day and the bombing of the Cole in 2000. Clinton did not act like a president responding to terrorist attacks on Americans. He seemed to minimize these attacks.