http://mentalistlist.livejournal.com/152801.html

There has been many clues regarding the true identity of red john.
Some of the facts are: 
Red John is a man. (As referred to by many; Rosalind, Lorlei,...)
He has or uses an odd voice.
He is right handed! (Several killings with his right hand)
He is an artist or had the touch of an artist. (Pilot Episode)
He is older than 30. (His first killing was in 1998 probably at the age of 20)
He is someone like Jane. He cares about Jane. He is NOT jane. (Shook his hand, saved him.)
He is challenged by Jane and he loves the chase.(Returning the case to Jane after murdering Bosco.)
He enjoys watching people die. Most importantly, he preys on their pain.
He loves tea.(Season 1 finale.)
He has very good electronic skills. ( Hacking into CBI computers and networks.)
He is someone very close to the CBI and has friends in the FBI.

Some Clues: 
Kristina Fry told Jane that she spoke with his wife. His wife wants him to know that his daughter never woke up. Is she a real psychic? There are no real Psychics so she must be an accomplice. Red John might have wanted her to turn Jane but once he realized the opposite, he killed her.

It isn't anyone of his team. (Proof: Season 1 finale: Red John left the room when they arrived.)

Alex Jane( Patrick's father) is a good suspect. He taught Jane most the things he knows. Jane left him after the crystal incident. AJ wanted to get back to Jane by killing his family and waking him up from him pretending to be a psychic.

Those came to my mind at the spot. More evidence later

I'm not really accusing anyone but I find it interesting that 'Roy Tagliaferro' is an anagram of "For a royal tiger." This may be coincidental but it's an uncanny coincidence if it is.

Accusing: Tommy Volker.
Is too similar to red john, acts in the same way. Might just be him.

I think that Heller has not decided who's got to be RJ, yet! Have you ever taken it into consideration ?

Accusing: Dr. Roy Carmen

In Season 3 finale, Jane allots different room numbers to the suspects....The lady assassin first enters Betram's room and then Jane team moves on and she falls from the floors. 

I doubt that both Betram and O'Laughlin are associates of RJ. 
RJ was confused that both his accomplices gave different room nos that is why he sends his assassin to Betram's room first. After the "Rope" incident, Jane's suspicion moves on to O'laughlin alone.

If Betram is not an accomplice how would RJ knows that room no 605 is unoccupied. how can the assassin just like that go in to the room ? 


And why does Jane does not get hold of Bret Stiles ? He himself said he knows RJ a lot 

Pardon me for bad English