Yeah, there just wasn't anywhere to go, Binnie. They had him.

Both Ricca and Accardo had similar immunity deals, "either talk or go to jail," but both testified and "skated" around the questions without giving any valuable info to prosecutors. I've asked some Outfit historians how they were able to pull this off, and was told that prosecutors could not prove they were lying. Both Ricca and Accardo were apparently very schrewd gangsters. They could also afford very good lawyers.