Ok, here's my own, current theory. It may be completely incorrect or change over time with more info. I'll need to do some more research to determine if it's even possible.
Anyway, I'm thinking that John pled the six charges down to one, perhaps with reduced sentencing recommendations on that one, by cooperating with LE as a CI. I think LE could get some valuable info re: both drug producers and dealers, since John was their middle man.
Once LE began to suspect Creech was involved in Gavin's case, as evidenced by two sealed search warrants at the Creech home for an unspecified felony related to Gavin's disappearance, I think they want to rescind the plea deal. Idk if they want to retry him on all six charges now, or if they just want to forego any specific sentencing aspects reached in said hypothetical deal. (If they think they're successfully building another felony case against Creech related to Gavin, I don't know that that'd want to spend time retrying him on the other five charges??)
My theory is Teola wants access to any related court cases/convictions as a result of any information Creech supplied that aided LE in successful apprehension and prosecution of others to try to hold the prosecution to the original deal.
I'm thinking the sealed docs and judge's reference to "confidentiality" relates to everyone wanting to keep John's role as an informant under wraps, as well as LE not wanting to show their hand yet re: what they have in Gavin's case.
Just my :twocents: