Funny coincidence: Mentalist turned into "men-AT-list" :)
I hope very very much that authors will provide a clear explanation of all weird moments, as so far I'm not convinced. Can anyone explain me why Kirkland killed that guy at the hospital? Bob doesn't know the name of RJ, so why not at least torture that guy?)) Instead ...we could translate that dialog ("do you recognize me?) as follows: hey, did you see my brother? -no.-are u sure? -yap, I'm sure.- ok then I'll kill you. I would love to know your boss identity, and you know it, but eh... whatever, I'll kill you."
weird, isn't it?
Now my theory is RJ could be anyone. Literally. Give me any name and I will explain why he is Red John. I think the main point is that authors haven't decided it till the last moment. During the first 3 seasons we see a crazy maniac, whose friends are creepy dummies. And now RJ is so rich, powerfull, with his philosophy, secret organization, which involves people from FBI, CBI... They've changed RJ!