I do agree with the cult theory of Brett Styles, but don't think its him. He definately has a big part of was is to be unveild. We see he is gonna be in next weeks episode his third appearance why else would have he been on so many times if he didn't turn out to play a key role in the red john saga. I also think Van Pelt has something to do with it whether she actually knows it or not. Last season her and styles have a moment where they connect while hes in the cell. Also a few seasons back styles tell jane he knows more about red john then he will ever know

I know it's been brought up at length but most often, PJ is seen during the day and rarely do you know what he's doing at night.  In episode 4.24, PJ wakes up and Lorelei tells him she made him some eggs.  PJ asks, "how did you know I love eggs?" and Lorelei just kind of shrugs and smiles at him.  Also, same episode, Lorelei tells Jane that his freedom and their night together was a gift from Red John... He allowed Jane the night with Lorelei without taking over.

Can anyone tell me who the kid in the convenience store is (episode 5.8)?  He's sitting at the counter drinking a soda and stares at Jane for a while as if he recognizes him.

"He is mar" not he is ma, or he is man. He is mar most likely means he is Maro. So you ask who the hell in the show is named Maro? Nobody, but one man was, Virgil Maro who led Dante through the hell. Patrick was originally named Daniel, name resembles to Dante, and William Blake was the one responsible for the artwork named Virgil and Dante at the gates of hell, he also wrote The Tyger which we all know. Creators like to play with clues, and they wont give away anything merely important cause it would be spoiled and probbably boring. But if you do some research and tap into the mind of creator, it makes sense.

I think Red John is possibly Lisbon's nemesis Tommy Volker because he is a multi billionaire which means he can get people to kill for him like we have already seen and he just lets people get there hands dirty while he can walk free just like Red John.Many people are afraid of Tommy Volker because of what they can do to him and thats the type of person Red John is.Like Red John Tommy is really smart as Jane has said and is the reason why Lisbon can't catch him.I don't know whether he is working with Robert Kirkland but he has warned Lisbon about Tommy because he is dangerous and that is exactly like Red John.He is the right size,build,age and has straight hair like Rosalind describes I know that is a lot of people but Iam saying it makes him a possibility.We don't really know much about him but when he reappears I will be able to make my full mind up by looking at small things of what is known about Red John such as his favourite music is Bach and he is a tea drinker.