As Doug's earlier long post points out, the FBI was involved up to the hilt in the OKC bombing, through various Muslim terrorist "informants."
That happened under clinton, but since these agents were guilty of complicity in aiding, abetting, and covering up serious crimes, and since they are still in the FBI, and in some cases have been awarded medals and promoted by FBI Director Sessions, it's not likely they are going to start telling the truth any time soon. Their own hides are involved.
Bingo. Those who covered up under Clinton are still there and still covering their own posteriors. The bad thing for them is that Jayna Davis is more than a pitbull. She is going to keep at it.