People are connecting Red John with Visualize and Ray Haffner, but Ray is now too obvious, he may work for RJ, but its not him. 

We are only assuming that RJ is related to Visualize, because he was in the red barn when those two guys were killed. That does not mean he was a member. He might not be a supporter, but wants to bring them down, so he kills those two guys and then paints his smiley face outside. I get the feeling RJ does not like Bret Stiles, much like Patrick Jane does not. We have been told in different shows that Jane and RJ are a lot a like, such as Lorelei Martins says that she is surprised they are not friends since they shook hands. 

We have met RJ for sure, but the writers are not going to make it look obvious just yet. I kind of hope it is Patrick Jane, because that would be awesome writing and very deranged.