Just a thought;

I have a strong feeling that Red John somehow changed his identity.

What about this. Jane's wife marries Jane because she is really smart and so is he. As we know they are both kinda similar just RJ is bad and PJ is good. So when PJ bashes RJ who is actually his wife, she kills their daughter and fakes her own death. Then she does the unthinkable because she knows PJ will recognize her; she gets a sex change/

So she becomes Bob Kirkland and goes from there. Y'all might hate on this theory but when I'm right y'all can feel my wrath.

Isnt this a bit weird?

http://www.spoilertv.co.uk/images/cache/the-mentalist/Season%206/Promotional%20Episode%20Photos/Episode%206.04%20-%20Red%20Listed/The%20Mentalist%20-%20Episode%206.04%20-%20Red%20Listed%20-%20Promotional%20Photos%20%284%29_FULL.jpg

And has he ever been seen in a tie other than a red one?
Watch the episodes he has appeared in and you will see every time he goes to say Lorelai's name , he stutters.

I think bruno heller has tried to throw us off him , and i think lorelai is still alive , but time will tell !

weird:

http://www.spoilertv.co.uk/images/the-mentalist/Season%206/Promotional%20Episode%20Photos/Episode%20...

if the link's not working search the mentalist red listed promo 

Rosalind Harker description about Roy Tagliaferro:

"Just under 6 feet tall. Not muscular but not soft, either. Short
straight hair a gentle voice. Rough, strong hands. He smelled of pine
and nail and earth and he liked to listen to me play the piano."


Now, Sophie Miller description about Jay Roth:

 "He’s middle-aged, in good health, with no stated prior history of psychiatric issues...He’s well-spoken, good posture, self-possessed...
However, there is every indication that his phobia issues are real whether acrophobia or some other issue remains to be seen."

We got the biggest clue now next to the handshaking, that's a phobic!

At 6x01 episode we saw the pidgeons in the room where Lisbon opened.
Patrick told Lisbon at the hospital: "Maybe something spooked
him and he couldn't go through his usual routine." At 6x02 we saw again pidgeons when the old lady feed them. Hm, it's weird!

Is it looks like Red John has an ornithophobic? - Very possible!

I don't think RJ
fear from the 666 number, but this is the alternative possibility,
beacuse that is also kind of phobic (Hexakosioihexekontahexaphobic). We saw 666 number on the wall at 6x01.

At the 5x08 Lorelei told Jane about the
handshaking, that was really big clue!
The fact is, we saw only 3 men shaking hands with Jane from the 7 suspects before Lorelei told it: Bertram, Haffner and Kirkland.
Brett Partridge is dead. Bret
Stiles, Sheriff Thomas McAllister, Reede Smith are out of the picture,
because we didn't see shaking hands with Jane before. Sheriff, Stiles, Bertram aren't middle ages by the way and Bertram hasn't got a short, straight
hair and he taller than 6 feet (6'3''). Bertram responsibe for get information the Red John investigation
(said Smith).

So, only 2 suspects left: Robert Kirkland and Ray Haffner.

Kirkland: He is 5'9'' tall (just under 6 feet). 44 years old now. He was 19 years old in 1988 (Elliston farm where 2 men killed by Red John). Exactly fit to description.

Haffner: He is 6'1'' tall (more than 6 feet). 46 years old now. He was 21 years old in 1988 (Elliston farm where 2 men killed by Red John).

At the Red Barn episode Father Peter DiBuono told Jane the smiley painted on the barn by some kid.

I'am absolutely sure Robert Kirkland or Ray Haffner is Red John!!

I'm going to try coming at this theory in reverse.  Instead of looking at who Red John might be, let's see how many people RJ likely cannot be.

In analyzing this, I'm not going to rely on anything Bruno Heller has said. He isn't going to want to expose the game too early, so I don't think we can be sure when he might be literally truthful, and when he might be misleading-without-openly-lying.  Plus, as others have noted, there could be times when he basically has to lie.  For example, if Brett Partridge really isn't dead, and some interviewer asks Heller whether Partridge is really dead, Heller has to lie (or mislead).  He can't just say, "Nope, that's a misdirection."  ;)

I'm also not going to rely on anything we supposedly "know" from Rosalind's descriptions, or Sophie's observations.  Why?  Because Rosalind (by her own admission) loved him (and therefore might have tried to plant false information to protect him), and because Sophie's observations were actually made about "Jay Roth," and we're technically only speculating that Jay Roth was Red John.  It's possible that he wasn't, and that RJ killed Sophie for some other reason. (Or that he did see Sophie, but not as "Jay Roth," etc.)

So I'm suggesting these eliminations on meta- grounds or logistical grounds, not based on what some character or another said...

RJ can't be Jane, Lisbon, or Cho.  Why?  Because the show is continuing beyond the Red John story arc, and those three characters are remaining on board (with no indications that one of them will be consulting from prison or something).  Obviously, at the end of the RJ story arc, RJ will be dead or imprisoned; if he isn't, it wouldn't be the end of the story arc.

RJ can't be someone whose normal responsibilities cause his schedule and/or movements to be too closely watched or restricted.  I think this definitely eliminates Bertram and Stiles; they're too high-profile.  It probably also eliminates McAllister; being the Sheriff of Napa County would keep a man's time and whereabouts pretty well accounted for.

I think those are just about the only ones we can pretty firmly eliminate.  If we conservatively speculate a little, we can probably eliminate a couple more...

Let's accept that the killings at the Visualize farm are the work of RJ and not, for example, the inspiration for RJ (i.e., not a precursor). If they're genuine, that certainly eliminates Van Pelt, and very likely eliminates Smith and Rigsby, as being too young.

It also means we have a ten-year gap with no RJ killings, from 1988-1998.  That's unusual for a serial killer, so logically, there must be some reason for the gap.  It's probably not due to imprisonment, because that seems like it would be far too easy to check; if a likely suspect happened to have a big ol' chunk of prison time in between two RJ murders, I think someone would have figured that out by now.  ;)

Most likely, he was training for something, and getting himself into a position where he could carry out his killings safely. A law enforcement position of some kind would give him visibility into the plans of authorities that are trying to catch him. That would fit Kirkland, Haffner, or Partridge. If Partridge is really dead, that seems to bring us down to two possible suspects.

Out of the two, my money would be on Robert Kirkland...

Personally i think kirkland is RJ. Everybody thinks its "too obvious"
Thats exactly why i think he is Red John. Another thing.. i believe reede
Smith is going to be a bigger factor in the RJ storyline than we would expect. Why
Would Jane include him in the list if he wasnt't in some way or another. Almost Everybody automatically just ignores him when talking RJ.... And thats exactly what bruno heller wants! It will interesting to learn more about him throughout the new episodes coming up!!

Just a thought....but it would be very entertaining if we were to learn that Bob Kirkland was somebody that we knew previously in the show....It would explain why he killed Jason Lennon and asked if he recognized him...it would also explain why Lennon said no...because Kirkland Is Red John and he's changed his identity...........I don't know it's more of a thought, not that I'm convinced this is the case.