IMO, Sweat is gaming the system and winning. He had a radio with him. He knows what has been reported in the news. He wants to survive in solitary confinement, so he will play their game. He knows Tilly already admitted her involvement, so of course he is going to parrot everything she has confessed to. He gets two birds with one stone that way. Revenge and keeps on the best terms possible with any CO at any facility for not turning in anyone else involved. He is sly, and and unless the can prove he is telling lies all of the talking he is reported to to doing will certainly help him in the future. IMO