I really have no idea who on the list could be red john but I really want kirkland to be him mostly because for me he's perfect for the role. His character and mannerism are so mysterious and intriguing( also thanks to the actor who play it) .Compare to the other six they fall in comparison. I'd be dissapointed if it were the remaining six lol

But looking from this season and all the clues, I dont think it's him which is sad. I guess he has his own story regarding Rj.

And how much i despise it, reading from all the theories rj is most probably brett patridge which is meh lol