We can safely say that the list is down to 2 people.
Here's how:

Brett Partridge- dead

Reede Smith- not red john, as we saw in 6x04..he kills but not with RJ's MO.

Gale Bertram- Unlikely. He seems to be part of the tyger tyger group, but unlikely that he is RJ. He is definitely lower in grade than Smith. We can understand that from the way Smith talks to him "Its your job to know the answer." and bertram responds sincerely "i'm doing my best" as if he is being ordered by someone higher up.

Bret Stiles- Not likely to be red john. Because when RJ goes to see sophie miller, he needs to have anonymity. Nobody should be able to recognise him. And stiles is kinda Famous. And like jane said, RJ might have wanted to meet sophie himself. So somebody else didnt go. The one who went was RJ himself.

Ray Haffner- Possible, since we still dont know much about him.

Sheriff McAllister- Possible. He whistles, he's afraid of pigeons, he's not afraid of heights. He's been there since the beginning. We dont know much else.


Now here's the interesting part:

Bob Kirkland- There's a reason jane puts him on the list. He is actually putting Michael kirkland on the list, not Bob. He just doesnt know it. Now we can say jane is clever enough to know that Michael exists and is alive, it can justify most of the stuff that bob did. Because it was michael who actually did all the stuff jane found suspicious.
But we can rule out Michael as RJ because Bob said when michael was drunk n troubled, he found someone who put him straight and who asked only for devotion and sacrifice in return. That person is red john, Not Michael or Bob.
Now that we think abt it, in season 5, Michael was probably instructed by RJ to kill Jason Lennon. That is why he asked "do u recognise me?". Both the twin brothers ask that so that they know if anyone has seen the other one.
Michael is definitely alive, because he meets with bertram in season 5. (He's hiding behind the door when Lisbon is talking to bertram in his office)

So, the only remaining viable suspects are McAllister and Haffner.
Any one of them could be Red John.


Please feel free to comment or add something to my theory!

I think Red John is a completely different issue from the Tyger, Tyger issue. Tyger, Tyger is most likely, what it was stated to be, some secret organization of law enforcement. Red John may or may not be a member since all the people on the list except Brett Stiles are some form of law enforcement. Partridge was probably involved with Tyger Tyger and said these words to Lisbon thinking she was
(Or IS) a member. Why would he think this? Remember the poker game she was invited to start playing in with all of those high level law enforcement people?? My theory is this was the first step to being invited into the organization. A sort of "trial run" to see if they wanted to formally invite her in. Because those poker games made no sense otherwise until now. What we don't know is was she invited in? I think Tyger Tyger is something, that if the show survives to see another season ( here's hoping it does!) will be the next storyline to follow.
Who do I think Red John is? If I have to guess I'd say Ray Haffner, but that is just a guess.

Nick Nordella appears in both episode 6x07, The Great Red Dragon and 6x08, Red John, as shown on the IMDB website. His appearance in these two episodes has led many people (including myself) to believe that he plays the young Red John from the Visualize owned 'Elliston Farm' in 1998.

The two actors from the list of seven (five remaining) suspects who Nordella resembles the most closely are Sheriff Thomas McAllister and Raymond Haffner. I have no doubt that Haffner is a very strong suspect but i believe that McAllister is Red John.

This is due to his age. The actor who plays McAllister (Xander Berkeley) was born in 1955. This makes him 58 currently. Therefore, he was 33 when Red John killed the Visualize members in the barn (as shown on Season 5 Episode 13- The Red Barn). The priest in this episode (Kyle Secor) told Jane that Martin Talbot told him ‘some kid’ drew the face. At the age of 33 at this point, Berkley would be unlikely to be referred to as a 'kid' by anyone. However, the age of Berkley's character (Thomas Mcallister) on the show is 50. This means that in 1988, he was 25. This makes him much more likely to fit Talbot's description of a kid.

Returning to the point of Nick Nordella, he is currently aged 25. The character of Thomas McAllister was 25 in 1988 because the writers changed Berkley's age. Coincidence? I think not. Nordella resembles a young McAllister. And they have changed Berkley's age to make McAllister and Nordella the same age at this point. Why do this? Because Thomas McAllister is Red John