Do you have confirmation of the withdrawal or just Ngunjiri's reported statement? I have not even seen a letter or application from Ngunjiri "withdrawing" the petition, have you? The last time journalists checked, the matter was still intact.
You operate from a tendentious point of view: You believe and hold people guilty and then place the burden of proving innocence on them. Yours is a slightly improved form of conspiracy theorizing. It has been a recurring approach in everything you post here.
However you refuse to grant others the same privilege anjd demand such things as proof, evidence etc.
Who decides when/whether to withdraw?
I think they are playing mind games by pretending they got nothing to hide and are ready to face their accusers all this when they damn well know the petition has been withdrawn.