Hi all.
Why Bertram?Well its simple really.He has connections,he knows poetry,he is the only one who has known that Patrick was at the mall in Strawberries and cream so he could sent The fake RJ to meet him,then the scene with kirkland in the office with him,but the most important clue is his age,many people think that RJ is young,a kid but thats where your wrong renember the seaon 1 finale with Rosalind Harker?Dumar or the cop that was a friend of Roy said that Roy or RJ was a long time friend of Dumars father so RJ cant be Kirkland or Partridge or Haffner or Reed.
I want also to give you my opinion on some theories that are now in the air.
1)Lorelie is alive.I must say that there has been a lot of evidence that she is infact alive but one thing doesnt add up,if Patrick recorded the video if hes behind it then how and why did the tape end up with RJ deciple ,that would mean that Patrick and RJ are friends what i dont think its possible.

2) Robert Kirkland
I must tell you that he isnt RJ,but he could have a fude aginst him.He might have been in a relationship with Lorelies sister and when RJ killed her he swore on revenge thats why he stole the list and killed Lenon but still it doesnt add up,im confused here because he would ask him who RJ is,but he isnt RJ because if you renember when Lenon was still in his house on the floor he knew who RJ was you could see it in his face he was smilling and being very proud, maybe Kirk is a deciple of Red John or not Im not sure yet.

Come on people wake up and smell the coffee...in the season finale laureli says red john has already or will torture her.we see the wound on her arm and also notice HER LEFT CHEEK ...now watch the death scene of laureli...first thing i notice is you can litterally see the paint brush strokes on the smiley face...also RJ tortured laureli before killing her as we saw on the season finale...at the murder scene PAY CLOSE ATTENTION to her face ...no marks of any beating whatsoever and the wound is gone....just the fact that her face doesnt have any marks and in the season finale she does is enough to make me think  something's up with laureli martins.

My theory is about how did RJ made the exact same list like PJ did. I dunno if someone already posted this but here it goes:

Theory: Lorelei is still alive
Supporting Details: 
-you can see an "ALIVE" word painted before PJ saw the "fake dead body" of Lorelei.
-Lorelei's wound is not shown. She is just covered with a blanket full of blood. And she is naked so no one can take the blanket off.
-Kirkland is in charge of the crime scene which i assume that is an accomplice of RJ if not RJ himself because of the fact that he killed Lennon.

That's why Kirkland breaks into PJ's room, steal the list, made video of Lorelei and then pass the video to the girl in CSP who also works for RJ and when caught killed herself through a pill.

Red John is the son of Timothy Farragut, the founder of Visualize. From the list of suspects, this makes him most likely Bob Kirkland or possibly Brett Partidge (though that seems too obvious to me).

Here's the basic theory: The Mentalist is playfully written - it presents us with puzzles, symbols, metaphors, allusions, psychological doubles and wordplay - classic literary techniques. The big clue about Red John is in the names....

RJ assumes the pseudonym Roy Tagliaferro, which we're told means 'cut iron'. He has been associated with Bret Stiles and Visualize from an early stage and season 7 episode confirms that he has been at some point a member of the cult (and probably still is). He uses cult techniques to control his followers and the language he uses to persuade is very much a mirror of the language used by that of Visualized, too; it's a fair assumption.

This episode also gives us his approximate age: he's described a 'a kid' some 20 years previously. There's a suggestion that Ray Haffner is a contemporary. The constant 'doubling' with Jayne also suggests strongly that he and RJ are of a similar age (and mentality - they are the darkness and the light of the same personality, in a sense). So this rules out the likes of Stiles from the list (too old) and Partridge (too young). Partridge is, however, very likely a 'friend' and probably lends RJ the voice that he uses publicly. Partridge may also be the son of Stiles - so, a 'brother' to RJ in an almost literal sense.

Why? Look at the names. Tagliaferro (cut iron)/Farragut ('iron gut'). The writers have almost given it to us on a plate here. Red John is the son of Timothy Farragut, the founder of Visualise who was murdered by Stiles. Don't be surprised if we discover that RJ was raised almost as Stiles' own son within the cult and therefore assumed special status. Being as intelligent as he is, he more than likely knows that Stiles killed his father, but their relationship is a complex one; each fears the other, but their destinies are somehow bound together. RJ is the twisted product of Bret Stiles murderous tyranny and manipulation, a being who has grown somewhat out of control and is developing his own cult within a cult with a purpose that is as yet unclear - but it does seem to go to the heart of the US justice system.

He more than likely has complete access to the Visualize 'confessions', hence his knowledge of Patrick's happy memory (revealed by Patrick's doctor, more than likely a Visualised member). He could have worked out Patrick's list himself; he would know which of his surviving 'friends' Patrick has met and shaken hands with and would know that Jayne will have worked this out for himself. It's a bluff, a scare tactic.

What Patrick has is a list of Red John and his six key lieutenants and RJ knows he's getting way too close now, so he needs to scare him, play Patrick at his own mind games. But which is RJ? I'm plumping for Kirkland. Why? A double bluff from the writers, who are playing games with us. They've given him to us knowing that we're going to speculate and doubt and say 'No, that's too easy.' It ain't too easy. It's Kirkland. Think about the scene in the hospital where he killed the guy who could have identified him. 'Do you know who I am?' he asks. That's the loyalty test for members - deny all knowledge, even on pain of death, even to Red John himself. It's like Peter denying Jesus. Kirkland's the man, and he's a maniac.