Here are my thoughts:

1. At this point if anyone alive and on "the list" turns out to be RJ, it will not be shocking at all. Partridge is conveniently dead, but they never showed the body or the autopsy or anything like that. Given RJ's reach and abilities, he should be able to pull this off to allay suspicions. I could see him seriously injure himself just to make a sale. Since RJ always uses pseudonyms,  he can just change his name and start over.
2. He didn't kill Lisbon because he wanted her to pass on his "tyger tyger" message to Jane, and probably also because he likes her (although how much could a mass-murdering psychopath like someone??).
3. The tyger tyger conspiracy does not work for RJ. They are a separate entity, and are probably hunting RJ too. That's why RJ keeps tipping off Jane about them. They may not have been able to capture RJ, but they must make a formidable enemy to RJs own people planted throughout the government agencies. So for RJ, he and Jane have a common enemy in the conspiracy; and for the conspiracy, they and Jane have a common nemesis in RJ. If I were Bruno Heller (which I am certainly not, since I am sitting around speculating) this would be a nice way to create a new enemy for Jane to take down once RJ is dealt with, allowing for the series to continue post-RJ.

Remember that Kirkland had Jane kidnapped in a cabin, that cabin (property of Michael Kirkland) was said to be surrounded by pine trees (the earth is implied). Bob was manipulating a hammer and he didn't even use it (one can relate hammers to nails). And remember that Rosalind said that Red John smelled like pine, nails and earth. I don't think this is a casuality. I didn't think too much about Michael at first, and my suspect was Haffner, but now I don't know. 

If beloıw theory is valid than ;

Reed will tell RJ that Kirkland the Robert has gone, RJ will send twin one Michael to Patrick ,because Robert before he died told Patrick "come visit me". Thery will put Michael in jail and Patrick will be missdirected by RJ through Michael.

Theory #7131 • Byloveagoodstory 
Posted 13 minutes ago

2 people find it plausible
1 people find it unlikely
0 comments
 
Ok now all of you just stop! lets reveal some facts...

RJ is not an organisation. The tyger tyger group is a group of RJ's friends. Robert Kirkland knew of the password because his brother joined the organisation and has probably told Robert about the password. Reede Smith must be on a very high level in the organisation, he must know all the members and thats just the reason he didn't respond to Kirkland's tyger tyger. The only explanation ''Robert'' didn't ask the guy who killed in hospital who is Red John is because that wasn't Robert, it was his twin brother, who works with Red John and the reason why he asked him if he recodnises him is because they know each other but he looked different before, and now he was trying to look like Robert in the hospital, and the answer no is the prove that he has changed that much, that even his friends don't recodnise him. But the organisation doesn't kill people RJ wants to kill they just cover up for RJ that is what makes RJ so hard to find. 

There have been several clues in different episodes.  The one I keep going back to is the blind lady that had a physical relationship with RJ.  She has said that RJ has a slight build but athletic.  No way could that be Brett, he's got to be too old and wrinkly.  I think the Sheriff McAllister is too old also.  Lisbon and Jane were reading Sophie's notes and said that RJ was an accomplished "whistler".  When Ray Heffner went to visit Lisbon in the hospital after being "stunned" by RJ, he left her room whistling.  Also since RJ has quite the history going back several years, I don't think he would be too young.  If it's one of the people on Jane's REAL list then I vote Ray Haffner.

Ok now all of you just stop! lets reveal some facts...

RJ is not an organisation. The tyger tyger group is a group of RJ's friends. Robert Kirkland knew of the password because his brother joined the organisation and has probably told Robert about the password. Reede Smith must be on a very high level in the organisation, he must know all the members and thats just the reason he didn't respond to Kirkland's tyger tyger. The only explanation ''Robert'' didn't ask the guy who killed in hospital who is Red John is because that wasn't Robert, it was his twin brother, who works with Red John and the reason why he asked him if he recodnises him is because they know each other but he looked different before, and now he was trying to look like Robert in the hospital, and the answer no is the prove that he has changed that much, that even his friends don't recodnise him. But the organisation doesn't kill people RJ wants to kill they just cover up for RJ that is what makes RJ so hard to find. 

RJ is a single person, fits Rosaline's descriptions, middle age, under 6 ft tall but here is the thing why dont they just record the sound of suspect's voices and play it to Rosaline, she would immidiatly tell who RJ is since she knows his voice, but i think Jane already knows who RJ is and is just waiting for the right moment to kill him, i think Lisbon and the crew will come down to 1 suspect an they will go on a chase, Lisbon will obv. tell Jane not to come with them since she knows he will try to kill him, but Jane has another name in his head ( not sure, Partrige if he isnt dead, or someone else ) and when the CBI will chase the fake RJ the real one will not be prepared and Jane will find and kill him easily. 

I miss the old series full of fun and not so intense and dark. But it is getting interesting 1 thing to say to Heller: you better start to connect things together otherwise you will loose a whole lot of fans. :)

CYA, pusto