@Teri_Kanefield Hall has professional experience in the criminal justice system. He probably sees clearly what those charges could do to his life, and wanted to cut a fast deal while prosecutors were in a dealing mood.

Unlike the privileged goobers above him in the conspiracy, who have little to no experience with criminal justice, and might be predisposed to think that they can't possibly be convicted and can talk themselves out of their predicament; that might think their charges are just an expensive inconvenience.

Pro-tip: the longer you wait to proffer, the worse your outcome.