Their was a recent Supreme Court case that held police are free to talk to incarcerated individuals about cases they are not being held on. Anyone no the case?

A similar issue is currently before the SCOTUS:

Details.

Do you mean Maryland v. Shatzer, 130 S.Ct. 1213
(2010) (Header: "(2) defendant's return to the general prison population, after he had invoked his right to the presence of counsel during custodial interrogation regarding allegations of criminal conduct separate from the conduct underlying the defendant's convictions, constituted a break in custody.").

I found Shatzer after I posted, I thought there was something closer to the facts given, but Shatzer works