Red John must be part of the Tyger, Tyger group and tied with Visualize. The only suspect left that fits the age, physical description, and could be part of both groups is Haffner. I think members of the Tyger, Tyger group suspects that Red John is one of them, but none of them are sure who. The groups illegal activities prevents them from their own internal investigation into the identity of Red John. Bertram's interest in Jane's investigation is to keep the capture of Red John from bringing down the group. Red John being part of the group, and smarter than the rest of the group, he would have info to take them down.They want Jane to do what they cannot, reveal Red John, so Tyger, Tyger can kill him.

This is not a theory, but I'm trying hard to ascertain if some things are true. If anyone has any insights into these questions, please comment, cos I think the right answers will solve the who is RJ puzzle.

1) Is the Tyger Tyger 'organization' independent of Red John, or is this something RJ started up and controls? It definitely has something to do with RJ cos RJ quotes those words to Jane in the episode where he saves Jane. But, on the other hand, I read somewhere that Heller mentioned that there was a corrupt ring of law enforcement officers thats going to be something the show will revolve around once the RJ thing is done. I can't remember where I read this, so I could be wrong.

2) Heller said that there was a clue in last sequence of episode 1, where Partridge dies, and Lisbon gets the smiley face. I'm wondering if this clue is the fact that Lisbon does NOT get killed, or the smiley on her face being different from other RJ smileys, or something to do with Partridge, or the pigeons, or the writing on the wall.

3) It really bugs me that Kirkland kills Lennon after just asking the latter if he recognises him, without asking for ANY info on RJ. If Lennon is a confirmed accomplice of RJ's, and Kirkland KNEW this, it is beyond obvious to get more info from him. 

4) I have a very strong feeling that the person who is known by Rosalind Harker, who met Sophie Miller, and who saved Jane from the fake RedJohns is one and the same person, and is THE Red John. This individual was a powerful personality. It cannot be anyone but RJ.

5) Why does Jason Cooper appear in the episode Fire and Brimstone? It makes sense for him to be in Red Tattoo, but why is he in the next episode as well?

6) Who is the woman in the Red Tattoo (see the promo for the episode) who is getting attacked, and whom I think Jane tries to save, only he is too late? He turns around and tells Lisbon "Its Red John". Along the same lines, Haffner, in the same promo, WARNS Jane that the latter is going to get his comeuppance soon, and we see this mysterious woman getting attacked right after. Does this mean that Haffner knew something was going to happen? And Jane was desperate to get to the woman to save her, telling me she's really important to him somehow. Anyone have any ideas who she might be?

7) Does anyone else have a really bad feeling that something bad is about to happen to Rigsby/Van Pelt? I think one of them is going to get targeted by RJ, cos we've been told that they both leave the show, and it has something to do with RJ.

8) As for my main suspect, IF the list of 7 is true, and real, and RJ really is one of them, then I'll have to pick Haffner. He seems an obvious choice, but to me it would be a disappointment if it were him, cos he is NO WHERE near as charismatic as Jane, and definitely not someone to inspire undying loyalty in highly intelligent individuals.

I'm sorry, but Partridge is dead.  All of the people out there thinking he is still alive is just flat out wrong.  He was a part of the Tyger-Tyger Organization and got killed by Red John (my guess is because Red John thought that he couldn't handle being questioned by Jane).  Kirkland's twin brother is interesting, but I'm not sure if his twin brother really killed Lennon, I just think it was Kirkland's rage.  In that scene, he asks Lennon if he recognized him, I don't think Michael Kirkland would do that.  He wouldn't have a reason to.  

Also, I think that Red John is a part of the Tyger-Tyger group.  I don't really have an basis for this, but it's just a hunch.  When Kirkland talked to Reede Smith about the organization, it was clear that Kirkland only wanted Red John, and that organization could give him a lead to Red John.  The only real reason that Reede Smith would have to kill Kirkland is so Jane couldn't talk to him about information regarding Red John.  Therefore, Red John is a part of this organization and had Kirkland killed (Also when Red John saved Jane from being murdered, he said tiger-tyger to him).  However, I don't believe that Red John is a group of people, it's got to be one person.  

Now on to the five remaining suspects: Smith, the sheriff, Bertram, Haffner, and Stiles.  Stiles hasn't really been in this season as of yet, so I will ignore him for now.  As for Smith, if he is Red John the show will suck.  He doesn't match the description of Red John at all and isn't methodical enough.  As for the sheriff, and Bertram.  They are clearly a part of the Tyger-Tyger organization.  However, I don't think any of these people are Red John.  In the scene from this season where Jane walks in on them talking to each other and then leaves, Reede Smith tells Bertram that it is his responsibility to find out how much Jane knows about Red John.  Red John wouldn't be spoken down to like this, so Bertram isn't Red John.  I also find it hard to believe that the sheriff would allow Reede (the hitman of the group) to give the orders to Bertram if he was Red John, so the sheriff isn't isn't Red John.  

That leaves Haffner and Stiles.  To me Haffner has been the front-runner from the very beginning.  He is the perfect Red John.  His age, his demeanor, and the way he has a "thing" for Lisbon.  It's also hard for me to believe that Stiles (the head of Visualize) is Red John.  I believe he is very similar to Red John, in his characteristics, but he is too obvious and too old.  In my opinion, I think Stiles is Haffner's dad/uncle, and that's why Stiles won't give any information on Red John, but clearly knows him pretty well.  It would easily explain Haffner's involvement in Visualize as well.  

Bob killed Lennon ,but Lennon knew who Red John is ... Before killing him ,he asked does he recognize his face... he said no.... so no Bob nor his brother are Red John...

Also , i don't think red john ,if he is a person ,is someone out of list... that would be disappointing for viewers ...

 For me there is only 2 suspects Roy and Chief ...
Chief for because he scared of bird on the roof...
And Roy because he like teresa and his walking ...

That scene when teresa is in hospital and nurse came in by error looking someone else, is very suspicious to me...

I think there was another similar moment when someone enter in the interrogation room by error ...
There is something in that scenes....

Everybody assumes Kirkland's twin is identical. I submit he is NOT identical but looks similar to Bob. I also say PJ has met Michael Kirkland hence the reason he "recognized" Bob when the first met, probably during PJ's con days.

Also Bob asked Lennon if he recognized him because he believes Michael got caught up with RJ and he wanted to see if he looked familiar.