in the last episode....when PJ killed that policeman....it was confrmed.....its no one else.....PJ!!
coz lisbon...repeated that sentence a couple of time that we have caught HARDY n we`ll know who is RJ frm him.....so here it is...at the end....HARDY DEAD....n PJ ...#corrections....RJ IS STILL ON!!

1. PJ is RJ or has an ego that wants to merge with him. RJ killed PJ family to lead him into despair seeking revenge which will bring out his dark side making it easier to merge.
2. RJ has followers that protect him and leave PJ hints that he's RJ. Bp saving Jane and saying the tiger tiger poem is one example. Also the man at the RJ hideout watching on the monitor was there to protect pj/RJ to ensure he's safe. PJ was in his RJ mode and checked the door to make sure it was locked so he wouldn't get caught. The guy at the blind ladies house was an enforcer ensuring the she called the CBI about the morgue attendant that way they would see RJ killed while they were with PJ and wouldn't blow his cover. She also acted as if she didn't know PJ to ensure this as well.
3. PJ/RJ "killed" KF because she talked to his wife and he didn't want it getting out he killed his family. This would explain why his wife wasn't in the hallucination after PJ drunk the tea because she would know he killed her but his daughter was asleep so she was clueless thus safe in PJ's subconscious.

Imagine that we see patrick wake up one day in the mental institution that we are told he was in for a year after his wife and child were murdered, and it was all in his mind. he was just some whack job that they found, he had no name and they called him john doe. the walls in his room were painted red, therefore his subcontious made up the name red john in his dream. there never was a red john, he never had a wife and kids, he was just a loony.

all be it, extremely unlikely but imagine? 

i think most fans would be so annoyed, i would be... would you?

Okay so I'm not saying that Patrick Jane is Red John definitively. However, I take issue with all these "fans" bleating about how it can't possibly be him. I don't want it to be Jane but there is no discernible "evidence" to completely rule him out as Red John. There are thousands of fans of the show who do want him to be Red John and their opinion is just as valid as those who don't. No-one has a right to tell us how to watch the show or who to root for/hate etc.

Now to the recent Lorelei episode where she died that so many are saying proves once and for all that Jane is not RJ.....it doesn't prove anything. If anything it neatly lays subtext hinting at the possibility of Jane being involved with RJ. 1) Jane apologises twice to Lorelei. Once when she finds out RJ killed her sister; this apology is completely unnecessary if Jane is not Red John. Second time when she is found dead, followed by him saying she had it coming. Seeing as earlier he had claimed feelings for her this is a cold reaction to her death. 2) The man who Lorelei kills at the end is so happy to see Jane when he comes into the house. They have supposedly only met once before really and he says "Thank God, Patrick" (Or something along those lines) as though he knows him. He then gives up the information about Red John to Lorelei really quickly with a little bit of prodding from Jane. There wasn't enough motivation for it really but he did, as though scared of Jane or perhaps being hypnotised/unhypnotised by Jane's words.

There is times where Red John and Jane appear to be in completely different places but that can be explained by his followers etc. 

If you watch it closely there are "Easter Eggs" nearly every week hinting at Jane being Red John, usually through Jane's own dialogue about himself. The subtext is there, and that is clearly deliberate by the writers of the show. This leads me to two conclusions: Either Jane is Red John or the writers don't want to permanently dismiss the possibility of it because they realise many fans love the idea and, thus, may switch off if it is not the case.

The show has been deliberately set up to allow for anyone to be Red John in the end. It leaves leeway for the story to grow. Personally, I don't think Red John has been decided on yet. I think they've left it open so as not to pigeon-hole the story from day one. It could be anyone and, for me, the mystery will always be better than the reveal. 

Patrick Jane is not Red John (this is possible only if the whole show would be his imagination and this would be very dissaponted)

Here are the proofs that PJ is not RJ:

1. There are some scenes which are played for sure by Red John, not his followers:
- season 1, ep 23: we see RJ's silhouette in a surveillance room with a cup of tea(probably) and a red book. Jane was in the basement with Lisbon and Dumar, so Jane couldn't be in the surveillance room, and there is no reason for any of RJ's accomplice to be there. There is too much mistery in the scene, so it's very clear for me that there was RJ himself.
- season 2, ep 23: Jane is in the same room with RJ and we see both of them. If the man with the mask is one of RJ's acolyte I can't see any reason of the scene. If Jane would be Red John, he would have managed to escape from those students without any help from his acolyte and because nobody (apart from the dead students) seen RJ and Jane together, the game woudn't have any reason (why would Jane show to some dead people that he and RJ are 2 different persons?) No reason. And also Jane was very scare by RJ's visit. Even when he was at home, alone, she looked very scared, so why he would be so scared when nobody is there to see his act,
- I don't remember the episode, but there is a scene when Rosalind calls Jane and she tells him that Roy came back. Jane was at the CBI and we can see RJ's silhouette in Rosalind's house. Jane wasn't in Rosalind's house, so only RJ could be (not one of RJ's followers because Rosalind would have known).
- when Jane manages to eliberate a man who knew Red John from prison and that man runs to Mexico, he was always with his CBI colleagues, so how he killed that man in Mexico?

2. Lorelei Martins says that Jane and RJ are very much alike and that she wonders why they didn't become friends. She was angry so this couldn't be a game, because when you are angry you don't lie, you just say what bothers you.  

3. Jane tries to make Lorelei believe that RJ killed her sister. When she knows for sure that her sister was killed by Red John, why she didn't shot Jane? Jane isn't RJ because she would have killed him because she had the posibility. But she goes to find the real RJ, not Jane.

4. Rosalind would have recognised him. If she and RJ planned this to happen and she would have to play an act with the CBI, she couldn't be so natural in front of his lover, she is just a girl, not the master of dissimulation.

5. Red John killed from 1988 (at least), but the first contact between RJ and  Jane is when Jane talks about him at TV. We know that both like playing games, then why only after the TV show they have contact. If Jane is RJ he would like something to laugh at, somebody to chase him, so why only after the TV show?

6. RJ kills Jane's family to punish him. Let's say that Jane kills his own family because it means weakness (sounds stupid but for some people is legit). Okay, so he eliminates all his weaknesses (his family, Kristina Frye, Lorelei), but why he keeps Rosalind? She looks weaker than everybody and she can recognise him (despite she is blind she is a danger for Jane if he is RJ)

Still a few things I can't explain, but here's my theory. Patrick is Red John, but he doesn't know he is. Gradually over the next few series, Lisbon will start to work this out. The entire thing ending with Patrick himself coming to realise that he is indeed the man he has hunted all along. Patrick will have no choice but to kill himself in order to kill Red John. Lisbon will want to stop him, to save Patrick. Lisbon will fail, Partrick will commit suicide. Split personality basically. Like Jekyl and Hyde.

I subscribe to almost the theories in which Patrick Jane is accused of being Red John, and I would like to bring a new one, a new clou. Let's take a look at the sign of RJ, at the smiley face that is drawn after any crime he makes. The similarity between that smiley face and the real face of Patrick Jane is obviously. Just look at the scene on youtube, about the voice of Patrick being the same with RJ's. The scene in the car, when Patrick jane looks that face which I'm talking about.  I reffer to his eye, the right eye which is let down. Where come from this similarity and why?