I think they played good ole Shayne. He must have told the truth, but not the whole truth so help him God. They found a way to void the deal.
"The agreement also said the state would give Austin immunity for information concerning the "possession of any controlled substances, the sale of any controlled substances, the possession of drug paraphernalia, and/or any other drug related criminal activity (not to include any drugs administered to Holly Lynn Bobo.)"
The agreement was contingent upon Austin being "completely truthful, forthcoming and cooperative" in the investigation. The agreement was also void if investigators independently developed evidence or witnesses — other than any co-conspirators — that implicated Austin in a crime related to the Bobo case.The immunity agreement had been signed by Boswell, Evans, Austin and Russ Winkler, assistant special agent in charge of the Tennessee Bureau of Investigation."
JMO's