Chris has sent more letters from jail. Basically he’s content with jail food, the living accomodations and the way as the staff has been treating him, but laments about having no friends there and rants about the guards and the inmates, which he claims to hate. Oh, and his mom is writing letters to him, because who knows why.
The letters also suggest that Chris has been antagonizing guards and inmates, which is something that is definitely not going to end well for him.