Red John is Van Pelt and Tiger Tiger are just a bunch of followers who havent even met Red John in person yet. You must realize how much Van Pelt face is specifically shown to show how she feels. Van Pelt used to be a man. Finkle is Einhorn!! But seriously its nobody on the list. I use to think it was Styles but I think he is too pre-occupied to be Red John and as weird as this sounds, Red John is a weirdo and Styles just runs a bunch of weirdos. IF YOU WATCH THE PILOT EPISODE, YOU WILL KNOW VAN PELT IS RED JOHN. ALSO SHE HAD A ACCENT IN EP 1 AND SEEMED VERY MAD AT PATRICK CALLING HIM GODLESS IN A BRITISH LIKE ACCENT. WATCH IT AGAIN AND YOU SHALL SEE. 

Something is up with van Pelt, watch the reaction at the latest episode when Rigsby says he loves her. 

She answers with: "I know" even though she's just married.

Either she's an accomplice? I doubt she could actually be RJ, that would mean that all clues are fake / pointing to someone below her.

Anyhow, she's hiding something!

be sure to dig.

California Bureau Of Investigation .com.

J'accuse Grace Van Pelt or Wayne Rigsby to be in a few episodes red targets.
Their marriage became a Happy Memory for Patrick, nobody knows that.

Did anyone else notice how chiseled Grace looked when she opened her coat to Rigsby in the office?  Who cares about Red John.

It wasn't red john who had the tattoo, that was probably one  of his assassins who did the killing like agent smith .she never said it was red john .Jane said that to Lisbon. red john is a master mind a man of art and mystery . he does things clean  not messy. the very same thing jane said to WALTER MASHBURN " you have a DIRTH PHOBIA" . think about it . WALTER also mentioned to Jane in that same episode "YOUR KNOW YOU DISSAPOINT ME" observe the manner and facial expression when he was telling him that as if its a teacher or parent speaking to a student/child. A BIG clue is that RJ always refer to Jane as Patrick he never calls him by "JANE". Every other person always call him JANE or MR JANE but not so WITH WALTER MASHBURN , he calls him by his first name ''PATRICK!"  jus AS RJ do. THAT  killing with the PI woman  was two messy to be RED JOHN , NO art and unfinished, "NOT clean at all" when red john does a murder he like it to be known (receive an audience ) and in a form of mystery ,it  must be a work well planned and well done . he likes art. A better suspect will be WALTER MASHBURN. 
                                              ALWAYS KEEP THAT IN MIND ABOUT  RJ

Something is seriously wrong with her

http://www.cbs.com/shows/the_mentalist/photos/1000874/-fire-and-brimstone-season-6-episode-6/45318/