Rigsby looks like batman and he has same name as batman so in last episode he will kill rj with his batman powers.

I think It may be something as simple as Red John is called Red John because of the type of women he likes. Rosalind Harker (Alicia Witt), a blind woman and former lover of Red John was also a Red Head.  Also Rosalind lets you know Red John is a man.  Or it could be Rosalind herself.  Or Rosalind could have been lying about Red John being a man.  Or Rosalind and is Van Pelts sister and together they are Red John.

On one side, our scripter  has not yet chosen who he is?. I guess the list is  a trick.
On the other side, RJ is someone in the CBI. Otherwise, why would Patrick be there? His main purpouse is to find RJ so  RJ is there.
The clue is on red hair...Rosalind and Grace...have been they dating  the same man? 
RJ is left handed . 
Lorelei is alive. The clue to the list of the seven is that RJ read it, and he made Lorelei read it. Remember her throat was not cut. We think she is dead, so we think she read that in the past. But, as she was never killed, RJ read Patrick's list and made Lorelei read it in the video. No one read Patrick's mind. If this is true, Lisbon is connnected to Red John.
I guess Rigsby could be RJ,On this site, there was a good theory talking about the Mentalist posters, the one about the mirror. And if you take a llok at it, it  say  it all. The killer is among the 5 ,in the CBI.

Hello! First of all I don't think RJ is in the list. For numerous reasons I believe RJ isn't included.

Let's use our logic. Jane made a list of suspects, using all of his memory to remember everyone whom he has shaken hands with. There is no other person in the world that could know with whom Jane has shaken hands. Except of course totally crazy scenarios that Jane has had a chip implanted when sleeping and is being watched on every minute of his life the past many years. Also there are no psychics and no other magical powers are known to mankind. So, we conclude that either
a) Jane first watched the RJ video and then made the suspect list agree with RJ's
b) the video is fake, which means Jane could have instructed Martins to make this video naming those people

But why would Jane misdirect Lisbon and make her believe that Red John knows about which people he suspects? Maybe he doesn't fully trust her, or he trusts her but would rather keep her in the dark regarding who he believes RJ is, mainly for safety reasons (her safety -most notably).

Of course Jane would prefer that RJ doesn't know he suspects him. If I am a serial killer and I know that the police's mastermind suspects me, I may be more cautious etc, whereas If I believe that they suspect other people I may feel assured thus making myself prone to commiting more mistakes. So Jane feeding a fake list to Lisbon means that either he doesn't trust her, or because he hopes it gets leaked and RJ sees that PJ doesn't suspect him, thus making him feel relaxed and vulnerable for mistakes, or to pretect het from harm's way. (The latter doesn't seem to be the case, as most suspects seem to be up to something and Lisbon already got in trouble with them!)

From all the above it's obvious to me that the list is fake. First of all RJ cannot know who PJ shook hands with in his lifetime - that's a hard fact. The only logical explanation is that the video is part of Jane's plan, which apparently also includes misleading Lisbon. This opens the road for a finale full of suspense. While we make theories on those shady suspects, Jane is keeping the real suspect for himself, watching closely what he does and waiting to catch him.

Also, I get a strong feeling that RJ should be a strong character in the series. if he is someone of that list, then we simply don't know many things about the character and personality of those people, they are only briefly shown in the past 6 seasons! We haven't seen Bret Stiles for god knows how many episodes, Reede Smith, Ray Haffner, Sheriff have made very few appearnces in these years, same for the other guys. It wouldn't awe us if anyone of them was RJ. But it would simply be super amazing if a character that we see in every episode turns out to be RJ, crushing all appearances and thus providing an exciting finale to wrap up the series.

If, for example, Bruno could bridge the logical gaps keeping Rigsby from being RJ - IF he could provide logical explanations as to why this is a viable option, as to how he could kill those people in Mexico or how he could appear to speak as RJ in the phone while being physically close to PJ, how he could fit Rosalinda's description (maybe she lied) etc etc then that would make a fantastic, unexpected finale. To my mind it would be awesome if a person involved in every episode of the series turned out to be RJ, not some random appearances that occured in 5-10 episodes, but a main character that managed to go undetected while organizing everything in the shadows.. I know this doesn't seem possible to most of the people, to me maybe also, but nevertheless this is what I would like to see as a finale!!

P.S. I like those arguments about Rigsby liking red haired women, behaving strangely towards them, having the most innocent face in the series etc!
P.S.2 I say again, I don't know if there are any possibilities of such a theory holding up - all I say is that to my mind this would be one of the most amazing theories, should the writers manage to close the logical gaps.
My 3 cents
Peace

Given that this "Tiger,Tiger" corrupt cop organization has been going on for quite some time, I find it odd that absolutely NO ONE from Lisbon's elite CBI team such as Cho, Rigsby, or Van Pelt has been offered/accepted membership into Tiger,Tiger over the past 6 seasons or has no knowledge & info about it or has even been approached by anyone about it.

Seeing as how Rigsby & Van Pelt leave soon, I think they both have something to do with RJ, and Risgby isn't as dumb as he acts or looks.

I'm NOT ACCUSING Wayne Rigsby

I'm actually here to poke a hole in the theories that he is by some miracle Red John.

Yes, lists and lists of clues are lobbed at him. How can he be Red John if at the end of season 4, Patrick is speaking to Red John on the phone in the limo, and we see Rigsby and Cho together in the CBI SUV? 

Please don't say Patrick is speaking to an accomplice because then we can play the accomplice game all day long with every single clue. And it's not a recording, this guy responds to everything Jane says.

Then we have the scene where the whole CBI team stands at the PC and chats to Red John over the internet. Rigsby is right there. 

Also, I respect the theory that Red John may be working against the 'Tyger Tyger' organization, but I wouldn't go as far as to say they killed Jane's family and now RJ and PJ are going to miraculously work together. RJ ordered Lorellei to cut off Jane's finger. Great teamwork.

Red John is most probably part of Tyger Tyger. Otherwise how would he be able to arrange such convenient cover ups? Bodies disappeared, a women got poisoned in the CBI office, Todd Johnson was burned in the cell at the office etc.  He must be part of it because we hear that Tyger Tyger do cover ups for each other.

This also makes me think that Red John MUST be law enforcement.  I can't see anyone covering up for random outsiders. The only exception to this is if it were someone like Bret Stiles who easily manipulates others.

Sorry for my ramblings.

Thanks for your time.

I also have some ideas too: 

First, I don't think RJ is not on the list. If Jane has a vogue list in his mind, I will be ok with the 7 suspects. Here he listed them down in black and white, everyone knows their names. They know RJ is there, sooner or later they can catch them. Nah, that's not a good approach for such a big fish like RJ, whom they have been searching for years. Moreover, the real murder is usually the least suspect in the big picture, I reckon the most plausible suspects in this site aren't RJ. 

Second, all the 7 suspects are creepy somehow. If they let the bad guys play the bad guys, that's old school. We will have no feelings for "the one", if RJ is really on the list, except for the happy feelings when justice prevails. 

Finally, for the sake of a detective show, I think the more shocking the result, the better, which means RJ'd better be the one we never suspect or even the one we adore - one of the main characters. 

The most shocking truth could ever be is that PJ is RJ himself, but it seems to be eliminated. So, the rest share the chance: Lisbon, Rigsby, Van Pelt and Cho. If you read other theories about them, you will find out all of them are good candidates for the RJ role somehow. My bet is on Rigsby. Here is why: 
-All the strange posters about him being isolated from the group or creepy.
-He will leave the show soon. 
-This truth will fire a lot of question: how can't anyone ever notice this? how can't PJ miss this? what will happen to poor Van Pelt? how does RJ feel when working so close to PJ and playing him around. That's what I would love to watch.