This is not so much of a theory but mealy a few of my observations. From what we understand Red John leaves the "smiley" at ever murder he commits, correct? Was I the only one who didn't see one at the latest scene. As Patrick once said "Red John is a showman." This leads me to believe it wasn't Red John? But maybe I've made an error(please correct me if I have.) 

My second observation is that Van Pelt and Rigsby's lives seem to be going along rather easy of late. Almost too good to be true? I can only think that there is action to come for these two; and with the two actors leaving the show I wouldn't be surprised if Red John became involved. 

Finally as I look to the new episode's promo. All I can think is it's too easy and according to the episode title's too soon. However I can only feel like Patrick has a plan. And this plan will be his best ever, I just hope it isn't a boring ending. We want excitement and drama and I feel like some of these new episode have been more about dropping lots of false clues. 

I genially have no idea who Red John is, I was sure it was Partridge before the list was revealed(due to the theories on this website.) But he's dead and anyone who argues that he isn't is delirious. It seems to easy to be Haffner or the sheriff as they have dropped too many clues. And as far as the physical description goes, we shouldn't trust it. Red John brainwashes everyone along side him to do what he says, so surely he could of planted false information?