I give up on guessing who redjohn is.. My money is on CBI Ron... But it doesnt matter who really red john is. One thing i know is we are getting close. And i am excited to know.. really excited... whether or not i am right. I am a big fan of the show. And i even got a redjohn tattoo on my right ring finger. but it was gradually erased for i think two weeks. Last satuday i got a bigger  on tattoo my right pelvis.. Patrick Jane and Redjohn Rocks!!!!

BTW I am from the Philippines.... And i enjoy reading all your theories... thanks everybody!!!

It is CBI Ron for a lot of reasons already stated by others.   "But wait" you say... "'CBI Ron' is not on the list." 

However, a "Brett Styles" Jr. using the Alias "Ron" might be.  

I think that will be the twist and how the producers can openly say Red John is on the list BUT still have a surprise with someone who doesn't seem to be on the list but ~technically~ is.

So Ron is Red John
Ron's real name is "Brett Styles Jr"
Brett Styles is on the list. 

I can only say, why is he everywhere in Season 6? I've never seen him this much but he seems to pop up in every episode for a quick moment. Coincidence?

Ok so here it is,

Before Jane answers the phone(in season 6 episode 1) he talks to Ron and he ask him if he has seen Lisbon and if you look closely Ron has a phone in his hand and when Jane turns his back he gets a call from "Lisbon' but its red john. So I think it was Ron who called him because when red john says sorry Jane she cant answer right now he has his 2 hands busy one holding the knife and the other one cleaning it. That scene happened before the call. Heller is just trying to confuse us. He wants us think to think its not Ron but it is! He called Jane right in front of us! 

Thanks :)

Wouldn't it be odd if Ron popped out of nowhere and rescued Jane from Kirkland?

                            Points to ponder

Perhaps I'm mistaken, but it appears that when you see Jane (plastic)tied in the chair, the ties are around his coat sleeves.  But when the torture threat is made, and the weapon is moved to (his) thumb, there is no coat.  And the shirt sleeves that are rolled up are not of the same shirt worn with the coat.....

I vaguely remember that Jane has said that Red John makes mistakes.  Was it not Bosco who first told Jane that when he was on his death bed?  And did he not whisper something to Jane that we didn't hear?  I know he told Lisbon that Bosco wanted him to protect her, but I'm thinking he might have told Jane what mistake Red John makes, and to be ready to recognize that later on.

Guys i think that RJ isn't Einstein.
I think that he just knows Jane for a long time and he knows what steps Jane will make.
Someone hiding in the backround.
Someone who could watch Jane all day.
Someone who have a same ring as RJ.(6x03,When Jane says to Lisbon:"I could marry you off in a minute.",and then he says:"Hi Ron!",Ron has the same ring as RJ in episode  Red Is The New Black.)
Someone who is left handed. (6x03,When Jane says to Lisbon:"I could marry you off in a minute.",and then he says:"Hi Ron!",Ron is holding a file with left hand.)
My bet is on Ron.
If he isn't RJ,then why would Bruno Heller even put him in the every episode of season 6,but just on a moment?
If he isn't RJ,he has some connection with him.
And that weird look Jane is looking at him.Hmmm.
Maybe Jane suspects him,but he doesn't want to tell Lisbon beacuse Lisbon will tell someone and all CBI would knew.Inclouding Ron.


Just my theory.What do you guys think? :)