This guy's a fake. It's a prison guard. He was on After Prison Show and was debunked by posters in the comments. For one, there's no noise. Prisons are noisy places and it's always quiet on his tapes.

Plus he shows his cell in some of the tapes, and the prison authorities watch youtube, too. They should have figured out who he was and shut him down by now. They give him an unusual tray, he posts it because it's interesting, and bam they've got him.