I believe that multiple people are "Red John". All working together and taking an element of him to work on eg one surveys Jane, one controls the police force(s), one does the killing etc. This possibility was displayed in episode two during the scene in Bertrams office with himself, sheriff McAlister and Reed smith where Reed said to Bertram he was meant to be keeping an eye on Janes progress with the case.

I also still think (forgive me, I can't remember the episode, the one with the guy who worked for RJ, got out of prison, and ended up dead with a dead lady in a bathtub) the blood writing in the bathtub was going to say "Red John is Many"

am I the only one who noticed the face figure drew by 'just married'? or is it just being too sensitive for scenes.. 

a kubrickian close up at this "just married" is important i think.

A lot of theories on here have been a reach. I mean 75% of them make no sense. The list from Heller is legit and Red John is on that list. Brett P. is DEAD and not coming back. That leaves us with 6 suspects. The lead up for season is going to keep everyone guessing on who Red John really is. It seems like with the conclusion of each episode from season 6, everyone is changing their theory. Now everyone believes it is the Sheriff.

I like how Heller as a writer, is keeping everyone guessing and on their toes. This reminds me of season 2 of Dexter where Dexter is being investigated as the Bay Harbor Butcher and he has his colleagues conflicting with one another and Agent Lundy is sitting back realizing that the Butcher is having the cops running around mindlessly. That is what Heller is doing with us. 

As a writer, Heller needs to bring the conclusion of this story arc to a neat and clean. Additionally, there are characters on the list that could be used later in the season such as Bertchum and Styles. So it remains to be seen who Red John will turn out to be.  

hey guys I noticed that the title of episode 9 season6 is "my blue haven" and it comes right after the 8th episode where, assuming from the title, the identity of red joh is revealed. Since it is the first episode where the title has nothing to do woth the red color does that mean that the show ends on episode 9 of season6? could this be a sort of turning point in the story? please let me know what you think?

Spoiler-alert:
Have a look at the Actor, who is playing a "young man" in the episode "Red John".
http://img5.fotos-hochladen.net/uploads/youngman8b3i47fdzl.jpg

Striking similarity with one of the seven suspects, right?! ;)
I bet he is playing RJ in a flashback to 1988 and the visualize farm.

Did you already watch the third episode?

It is very unusual that Sheriff doesn't want to climb the ladder and than walk closer to the edge of the cliff at the beginning. It's like Heller is throwing him at us. But than again, at the end of the episode he saves Patrick from falling from the roof, so his fobia of heights clearly doesn't exist. We can now officialy say Sheriff isn't afraid of heights.

But than just when they walk down from the roof, he gets scared of a few pigeons, yells for a second and than says: "I didn't see that coming, I hate those things!"

That is probably the biggest hint in the episode. Sheriff does not like pigeons! And as we found out, Patrtridge could be taken as a synonim for pigeons, so there could be a possibilty Sheriff had something to do with the death of Brett, or at least Heller wants us to think that way.

I honestly don't know who could be Red John. Heller has that mystery well wrapped somewhere in there, but is constantly throwing us fake hints to throw us off, when we're trying to found out.

Truth is, Mr. Heller is a very fine mentalist and a manipulator himself and he is also one step ahead of us, just like Red John seems to be one step ahead of Patrick.

I think Patrick wants him to feel that way, but he knows clearly more than he is sharing with us or Lisbon.

Next episode with Kirkland is going to be very interesting. If I judge from the promo, Kirkland indeed isn't Red John himself and is just trying to catch him himself or works for him and is paid to scare Patrick.

Oh, and also, I don't think Heller is such an amateur to let us now from the cast appering in the episodes, who Red John is. If Redee Smith is going to be in the episode 8, than that's because Heller wants you to think he is RJ. Just like last week, when he threw Haffner at us and this week Sheriff.

I don't believe Red John is one of the 7 suspects, but every single one of them is connected one way or another with him and has a specific interest connected to him.

Who else thinks that Jane should practice on using guns or learn some form of self defense seriously what is he going to do if he faces red john alone he won't stand a chance