When the nurse came in and asked for 'Carmen Lee' it triggered something in Jane's head to think of Sophie Miller. I worked out what it was. In the Season 2 episode "Scarlet Letter" the psychiatrist and therapist of CBI makes his first appearance , his name is Roy Carmen. Roy being Red John's primary alias and Carmen being the name called out in the hospital. In the episode Red Badge, Dr Roy Carmen is turns out to be a killer. I am not saying this guy is Red John, but now i see why the name "Carmen" linked Jane to his own psychiatrist. This may come into this season but it might not, just thought id put that out there for people wondering why Jane made the connection.

I have been watching religiously The Mentalist from the very beginning.
I have watched re-runs, watched the episodes again and again trying
to find clues. And what I really loved about this show is that despite the brilliance of
Heller in developing each case the CBI had, he always managed to keep it
simple. Everyday people becoming murderers, hidden in plain sight. But in Season 6, not so much....I mean what the hell?....A cabal of law
enforcement officials from different agencies, from the copy guy to the directors?
Committing murders and getting away with it, or cover up murders? Come on, give us a break...
Whether this league is related to RJ, the whole thing is preposterous...
and so unreal!!And what about this "tiger-tiger" phrase? Are they all somehow hypnotized and this
phrase is the trigger?
 
After watching episode 4, I totaly lost my interest in finding out RJ's identity.
For all I care, it might as well be me...I will keep watching the show, just to see how far it will go, but honestly I think we are
in for a big surprise..and not the good kind..
After all Heller said that we will be disappointed when RJ is revealed, he just did not
warn us how disappointed..

I'll try to be clear.

There was a serial killer, Todd Johnson, that used to kill only cop, ordered by Red John, his lasts words in the hospital was TYGER TYGER, maybe he was trying to give a clue to jane about this Tyger Club. What if RJ wanted to kill those people and asked for Todd to do it?

Following this line, Todd Johnson killed the husband of Hightower, what if he was some of them? Why the hell the aunt of Hightower called Jane "Poor Lamb", does she know something about or just Heller trolling?

Oh man... the Partridge vs Haffner arguments are getting intense. Well...Heller got his wish. I'm sure he knew that Partridge's death would throw a wrench in everyone's theories, and he has successfully split the fan base down the middle. Everybody just chill out..you are free to disagree with someone's theory, but please don't call them a 'lunatic' because of it. It's unnecessary.

It's Sheriff McAllister.  Here's my case:

1) Red John has a deep connection to the rural areas outside of the city.  Yes, he has been active in the city areas but it's not his normal stomping ground - look at season one finale which introduced both a friend and a lover of RJ, both of which were in a rural area.   And RJ was friends with that killer's dad, so RJ has deep roots in that area or community. 

2)  Rosaland mentions that RJ smells of "pine and earth" which seems to be answered because Jane thinks he was building a cabin or something...but, I think that's how he smells all the time because of where he lives and the life he leads.  His friends are from small towns - and so is his past...which leads us to...

3)   The barn where it all started.  Visualize is always the thing people mention when discussing RJ's first murder, but I actually think where it happened is important too. Another connection to the rural areas.  

4) The first time he met Jane they "shook hands" in a unique way that played up the idea of Jane being a false psychic...it's the perfect intro for the eventual villain...and could be used as a wrap around later when they meet for real.  

5)  Episode 2 dealt with a couple who kidnap and sexually assault young girls, just like the other couple from season 4 (I think) finale.  Also, it's possible the couple from episode 2 was being encouraged by RJ, but of course they died so...who knows...

6)  He's the suspect fewer people look at...why?  Because not much is known about him.  He doesn't really make much of an impression whenever he's on screen...which is odd since the actor who plays him is quite talented....maybe he's supposed to be bland?

7)  Most of the other RJ suspects are this season in serious nail biting episodes...but not Sheriff McAllister....he's practically in a romantic comedy...

again, we don't take him that seriously...perhaps it's by design?

In summery -- Red John has connection or works in law enforcement, plus he has a lot of friends  in the suburban and rural areas.   Sheriff McAllister.