I'm not religiously following it, no. But, I do catch it from time to time. I saw when they were listing the charges against him. It seemed as if for the very first moment in time since the inception of his plan he realized just how fucked he is.
The look on that child's face - and yes, he is a child, mentally speaking - I don't know, I think what he did finally sank in at the moment he was indicted.
Though, I'm sure he was thankful for the reprieve of being mocked and ridiculed and threatened by other inmates.