Can people please stop reposting theories from the last couple of days just because they want more likes? 

Red John is one of these people: Sheriff, Haffner or Partridge.
No matter what crazy theories we come up with, we won't know until the Red John episode.

And to people who think it's Patrick Jane: you are so delusional! It's actually painful to read your theories.

I think jjc10 nailed it with Partridge I mean Roy I mean Red John. and heres something to add to it. I posted a few days back that maybe Brett Partridge was a Psedo name, with the letters in his name i was able to make Red Tiger. isnt it also interesting that u can make the word Tiger out ot Tagliaferro. Quite a coincidence that both Tagliaferro and Partridge The 2 people we think that are one and actually RJ u can make tiger out of both of there last names! Maybe there is even more if u put it all together, maybe jjc10 can figure it out if he or she reads it cause u seem to be the smartest one on this site

Why was the smiley face drawn on Lisbon a clown face? It was a clown because it was a joke - there was no murder that night and BP is still alive.. It wasn't a reall murder it was Rj going into hiding.

There are two options for me. Brett Partridge and Ray Haffner.

Also, I still do not understand why the other suspects are interested in producing it, and theories. :)

Bob can not Kirkland. Because, you know Red John, the actual list. If Kirkland is Red John, Jane, why would he want a real list? Bruno Heller, said that the last five minutes to pass blood. I think Red John, Kirkland kill. Red John for an early released publicly, even if Kirkland already take out easily from the list. No other suspects are already Red John atmosphere.
As I said, my favorite two suspects, Brett Partridge and Ray Haffner.But I'm Brett Partridge, Red John, I think. Reason: Brett Partridge body was revealed. Maybe it might seem like a simple event. But really dead, dead, dead body on the show and did gerekilmiyor given precise information? Brett sildirdi the list itself. But Jane did not check it. Brett thinks himself clever. But I do not know that Jane did not check her knowing. Red John himself fall into his own pit dug. :)

Well, someone finally figured out who RJ is. I took 20 minutes to read the theory. Luckily, it felt coherent and readable + there were a lot "Ohhhh yeah!" moments. It was actually Bosco who is, I quote Lisbon, "a damn fly agent," and the info he gives Patrick in season 2 while on his deathbed, which forces Redjohn to kill off Partridge and lure Lisbon. I'm glad he played a role in the end.

http://www.whoisredjohn.com/See-a-theory-Red-John/6373

Green: If you're happy that you stuck with Partridge and feel rewarded that Brett Partridge turned out to be an alternate identity for Redjohn.

Red: Why oh why... Screw it, I'm going to forget everything I read and carry on making theories its PJ or Mashburn or Haffner. P.S Heller lied to me. :(

Whelp, it's not Partridge. Plotnick confirms it in a interview: he's dead as a doornail.
http://cliqueclack.com/p/mentalist-brett-partridge-really-dead/

I always thought the scene when Red John saves Patrick was way more important than we may think:

http://www.youtube.com/watch?v=MKZvmwU1ufg

Why?

We all know Patrick has an extremly sharp eye and notices everything and I mean every single little thing.

My first thougt when watching this scene was: Patrick now knows who Red John is. They are staring at each other from 1:32 to 1:50 from litteraly 1 inch. Jane has too good of an eye not to notice something. At least the color of the eyes, the way RJ breathes, smells, walks, something. He wore a mask, I realize that, but he had openings for eyes. Just like they are on every mask. And the smile on Patrick's face at 2:43 when RJ leaves confirms that in my opinion. He noticed something.

I was, at that time, sure Partridge is RJ. The voice, the teasing coming back simillar to what Patrick did to him at the start of the episode... I'm just not sure Heller is sticking to this plan. I think Partridge was supposed to be Red John, but a lot of people figured that out too quickly, so there is a possibilty Heller changed the story and someone else would be THE guy we are all curious to guess. Or Heller thought we're so dumb we won't think of a possibilty that Partirdge faked his death. We'll see.

For me, the most important things, that point to Partirdge are: voice, the fact he is there from the very first episode and the most important one: Patrick feels very uncomfortable around him. I don't care about Sophie's or Rosalind Harker's description. I believe what I see. And Jane is always in control of people. Except Partirdge irks him, as he says. Jane also says that he feels on the crime scene when RJ is involved. So, he also feels the negative vibe when Brett is around. He just doesn't have anything to be 100% sure and is never truly alone with him.

I think Patrick knows who Red John is for a while, but he is playing the game, trying to trick RJ just like he does all the time with every other suspects at the crimes that occur during episodes.

Let's hope for a great ending to Red John saga and a fascinating continuation of the series, because it is just great!