This is the first time i have contributed to this discussion but I think there are many theories which have developed through the seasons and reflect characteristics which may define 'who' or 'what' Red John is.
Personally I do think Red John is just one person, although the theory of Red John being the name for some kind of wider society is interesting, this would make sense considering the responsive nature where Red John seems to know everything and react to anything as if he/she has eyes and ears everywhere as well as always being two or three steps ahead of Jane (thinking of the final ep of season three here).
However i think it would make sense that if Red John was a single person he/she is a manipulator, much like jane except more devious, this would explain how many of the 'normal' characters which have appeared in the show turn out to be serial killers/psychodelic in nautre.
One thing that bothers me is who or how many people within the CBI have some kind of relationship with Red John. LaRoche is leaving the CBI rather quickly since Jane said he 'knew' LaRoches secret, although I doubt this has anything to do with Red John. I do however feel there is a strong connection between Red John and Bertram, if anything though I do think he is just another 'tool'.
What is most important though is how was Red John able to be so many steps ahead of Jane in the series 3 finale? Not only did Red John have Jane fooled but he also had another plan whereby Jane could find someone who imposed as Red John, but on top of that have the resources available to have the scene cleared up imediately after.
Just a few thoughts to add to the discussion. To be honest if the identity of Red John is not revealed by the end of season four then I don't think it ever will be.

1  out of 1 found this valuable. Do you find this valuable? Do you?    

I have this theory that is linked to the Romans.

I posted this in the 'words?' thread.

"I believe that it is "He is Man". Mostly because of the last few days I have been going over it in my notebook and trying to create words from that. Unlike "He is Mar", I managed to find quite a few that fit "He is man" :

His name
In Shame
Is he man
Man is he
Name his
Shame in
She Main

It could also be part of a name. If we assume that the other person wrote it, they could have missed a syllable said. So a possible name would be Roman (which can be mistaken for 'a man' if you say it enough).

"He is Mar" also does have a connection to a name. Mars is not only a planet but a ROMAN god. It could also be short for March which again also has to do with Roman.

Most of my theories are now with the Romans."

Patrick is from Latin origin and in Rome, they used to speak Latin.

Just a theory...

0  out of 1 found this valuable. Do you find this valuable? Do you?