It's simple Red John is Michael Kirkland. In season 5 episode 7 when Jane met Michael Kirkland (because it was the only time when Bob wears a beard, that told us that it was Michael not Bob) when the two shook hands together, jane was walking around with this blue tea cup (http://www.youtube.com/watch?v=kxqpy8H35os 1.30 min), which destroys in the last episode the great red dragon. And you can see in janes eyes, that he realizes this and then he goes to the church to finally meet Red John alias Bob Kirkland. And he is also the only one who fits in the description from the blind woman and the psychiatrist.

Sorry for my english i hope you understand my point of view.