There is a really stark contrast between the paragraphs where he is rambling about being Jesus with run on sentences that make no sense, and the one paragraph where he is having a tantrum about getting in trouble for stealing money. That paragraph is a lot more like all of the shit he's written over the years, while the other shit comes across like a performance. I think he may be trying to seem crazy there.
I do not believe Chris is crazy, I believe he is just retarded. I also do not expect Chris to end up in prison, I think he will get institutionalized (but for being retarded, not for being insane), which would mean that he will probably never be released into society again anyway. I wonder what the status of his toy collection is.