The alleged plot was supposed to play out with Stine killing Kelly and getting charged for the deed, only for the prison officials to fumble the evidence and ultimately bury the case. Stine claims an official said he could be transferred after the deed and he’d be allowed to escape, and stay free.

Stine seemed like he was ready to carry out the murder … approaching R. Kelly’s housing area in March, only to turn back at the last minute and blow the whistle that Bureau of Prisons officials had ordered the hit. Stine approached Kelly personally in prison to inform him, according to the court docs. Stine’s indicated he’ll take a polygraph test and will offer to testify.

Kelly’s counsel says the flip was a costly one … now another member of the Aryan Brotherhood has been instructed to kill both Kelly and Stine — and the prison is crawling with more affiliates waiting in the wings.

We also obtained separate court docs Kellz filed with the U.S. Supreme Court asking them to review the case.