I love the theory #6312 (http://www.whoisredjohn.com/See-a-theory-Red-John/6312), it's one of the best theories I've read about Red John, but then, I remembered that, in Season 5 finale, Jane told Lisbon that he would tell her the names of his list but that she couldn't tell ''another living soul, nobody'' because she would act nervous around them and they would notice, and because one of the names, was Gale Bertram, her boss, and that name appears in Lorelei's video, but not in the notebook where are Mashburn, Ardiles, Ellis Mars, etc. So that makes me think that Jane did have the list of the seven final suspects but never appeared on-screen. Unless there's something going on about the video and about who really made it that we don't know. I actually really thought that the list of the notebook was the legit one, but after the Bertram thing, I don't know.

Another thing: Why doesn't Lisbon tell Jane that Haffner is member of Visualize and why doesn't she tell him about that creepy visit in the hospital? (Unless that happened off-screen). And why Kirkland sent his men to broke into Jane's attic and stole the Red John information that was on his board? How did he know that Jane had that information? The only person that saw that board before that, was Lisbon.

But, after all, I still think that none of the 7 suspects, is Red John. But if I had to pick a person from the list, that would be Haffner.