Well, this episode just continued the trend of season 6 so far.
Eliminate one suspect on the list after another, until no one is left.
So RJ could basically be ANYONE.

If we take the list:
Partidge: dead (but we never saw the face of the body, Cho inspected)
Kirkland: dead (for sure, but what about the twin brother?)
Stiles,
McAllister, Haffner: dead (but not confirmed?, only thing we saw was
their pictures on the wall and a foot on the ground at the scene. Jane,
Smith and Bertram survived, so why not someone else?)
Smith: in custody
Bertram: alive, on the run.

So it is Bertram, right? Well, no. Bertram wanted to kill Jane, because he knew about Tyger, Tyger.
PJ is driven by his hate for RJ. He wants to take revenge. Jane wants to
kill RJ, not have him arrested. So why tell the media RJs identity, so
that every law enforcement agency is on the manhunt for him? Right, he
wouldn't. He wants Bertram arrested, because he is a high ranking member
of Tyger, tyger.

So where does that leave us?
I really, don't know, but there is still a major plot hole, that hasn't been revealed.
What about the gunshot before the explosion and the explosion itself.
Who fired a gun? Was anyone shot?
And
who set of the bomb? If it was RJ, why would he set up an explosion,
while being in the room? He would have to calculate a possibility of
dying himself, by doing such a thing/ And suicide sounds nothing like
anything RJ would do.
So the assumption would be, that RJ was not in the room.
So
that leaves a couple of dead persons (Partridge, Kirkland, the twin,
even Bosco [they showed his dead again, shot in the ribcage, a shot you
could survive...], or the new detective or Mashburn or.., or...).

I
am not going to make a pick here, because throughout the show I have
been 100% certain to know who RJ is so many times (from Stiles to La
Roche to Partridge to Haffner and back and so on) and one episode away from the reveal, I am clueless again.

Who
I want it to be: Partridge, because Jack Plotnick is a terrific actor
and portrayed Partridge the way I would imagine RJ to be. Highly
intelligent, skilled and icredibly creepy. But it is so very unlikely he is still alive and RJ.

Brett Stiles, Haffner,Mcallister,Partridge none of them is dead. 

RJ is Brett Stiles. 

Down to two! I think it's pretty clear from the 6x8 promo and the way the story has played out that Bertram is NOT RJ. Almost certainly connected to him and probably his right hand man. The "call" Bertram would make anytime he got big news would be to RJ of course.

It's really looking like Mcallister based on the promo pictures and IMO the door is still wide open for Partridge as well. They could have shut that door by having Cho confirm it really WAS him but instead chose to show just a sliced up shoulder. You can make the argument that Cho would have been able to tell if it was him or not but they obviously chose to leave it ambiguous instead of making it clear. It's possible the Sheriff is alive but Partridge is RJ.

So now we're down to the two characters that were shown in the first two episodes of the series, as it should be. My money is on the Sheriff but either way I'll be happy with the outcome . One week left!

does anyone else feel majorly sorry for Ray Haffner and Bret stiles because they were both innocent, Stiles was dying already, and Haffner had a little high school crush on lisbon and now they're both dead sigh

[ If you don't like spoilers don't read below, because I'll tell you who Red John is ]
[ Read at your own risk ]
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Hi again everybody,
Well, the last episode (6x07) was a huge disappointment  for me, mainly because it revealed to us 2 things:
- For one, the whole Bertram is RJ thing, is just a huge (last) red herring, and the press conference declaration of RJ identity to the media was made by Jane, just to throw off the police forces and the masses attention to a fake suspect. Do you honestly think that the careful, meticulous, calculative, and somewhat selfish Patrick Jane would share his "prize" with others? I think not. What I think happened, is that PJ knows who RJ is and he's pretending not to know his identity, and let him think that he's lost the game of guessing who he was, just to lure him out of his hiding, to finally confront him and ultimately kill him, and that's what the next  episode (6x08) is all about.
- For the second point, this episode revealed to us the identity of RJ, how you ask? Well it's easy to guess if you use a little logic, that's what the show is all about, a game of logic and deduction. I won't hide it anymore, the real man behind the all mighty RJ, is none other than... wait for it... "Sheriff Thomas MacAllister", yes, a lot of us are, and will be disappointed, like Bruno predicted it, because up until now, none of the suspects showed signs of being RJ, be it the physical description, or the behavior traits, apart from the phobias and the whistling that were thrown at us like confetti at a wedding, which by the way added to the confusion more that anything else... Well how come did I come to this conclusion? The simple fact that some survived the explosion and some were  burned to a crisp tell us something, I'll explain: look at the survivors: PJ, Bertram, Smith, what did they have in common? They all were at the over the other side of the room, away from the explosion point, which I'm guessing, was behind the couch Style and Haffner were sitting on, oh yes and McAllister, but remember, McAllister was at the other side as well with the others, and he was at the farthest distance too, so logically he was the least person to sustain  injury. How come is he declared dead. Well, they did not find his body, rather, just DNA, which we know is easily implanted in the scene, it could be blood (we've seen this before). So, he's NOT dead. It was all part of his plan, to fake his death, escape, and frame another suspect for being RJ (First it was Smith, then Bertram). Further the actions of Bertram tells us a lot of clues, he is either a disciple of RJ, or maybe he follows orders from above him in the Blake Association (this name sucks I know but Bruno chose it...)  but doesn't know that they come from RJ. So when he went to take the money, the recepionist called him "Thomas", this is no coincidence, it is in fact Thomas MacAllister's (Aka Red John) safe he went to, and under his instructions of course. The USB lighter that the team found in that place was not left by Bertram, but it was intentionally left by Red John, and it was not a list, it was most likely a message to Jane, because he knew he would be the only one to decode it (Van Pelt confirmed it). Which of course he did, and guess where it will lead him? Yes, to that church, where he'll meet his nemesis. Patrick knows this so he brought a gun (remember the gun he got from the safe a while back), but McAllister don't know or anticipate that PJ will have a gun of less likely he'll shoot him in a church, maybe that's why he chose that place for the first confrontation.
To the ones amongst you saying that McAllister can't be Red John or he's not suited for it due to his dull personality, well, maybe you don't know this, but in real life, serial killers hardly never reveal their real identity or personality to others in fear of being discovered. Hence, we can conclude that the "Sheriff" persona, was all an act, and that in the next episode we'll finally see the "real" personality of McAllister which is  Red John. And the ones that know the performance of Xander Berkeley as an actor know that he can really pull it off, you just have to see one of his other work (see "The booth at the end") to be completely convinced. And honestly, I prefer it to be McAllister than any other one on that list.

That's all folks, I'm glad I boarded this Mentalist/Red John train with you all, that was truly a fun ride, but sadly the game has come to an end.

See you next time.

RedHawk.

PLEASE TELL ME ITS NOT BETRAM. IF ITS MCALLISTER I WILL ALSO RAGE. IF HE CAN FAKE DEATH WHY CANT KIRKLAND OR PATRIDGE FAKE DEATH TOO? THIS KIND OF CHEAP TRICK BETTER COME WITH AN EXPLAINATION THAT IS WORTH IT.

I suspect its Kirkland twin somehow.. Probably patridge or worst come to worst Mcallister abd Haffner. The rest cannot make it (CMI) I have read theories given in this website and all of it is thinking too far fetch where the actual fact is that it's just a simple and basic plot from Heller that is going with the flow. Bomb>died>killed. He is removing all suspects to make us doubt our suspicion. There was no any 'thinking out of the box' theories that came from the website that its actually correct. This show is as simple as it could be. I hope the next episode was better than I anticipated. The tvline.com has already view the last episode and told us that it was unexpected and better.

I dont know who you are but thank you for that thoery, i think its so close to the truth:http://www.whoisredjohn.com/See-a-theory-Red-John/12033