Looking back, I can tell that Lisbon could make the PERFECT Red John.

Think
about it.She was there since the beginning.She was the leader of Red
John investigation.She is strong, very good with weapons and kind of a
lesbian.(Or at least that's how I see her)

She likes Jane but she
wants to be friends with him, not lover.That's why for 6 seasons until
now she denied all the romance chemistry that was growing.

That also explains why RJ didn't kill Lisbon at the "pigeon house" .

Plus that explains how Lisbon got the list before Jane.She was always trying to watch Jane with the list and what he got.

She had help from Lorelei (also a lesbian :P) to make the tape.

She has father issues (He was a sadistic drunk as far as we know)

She is the leader of BA but of course she is too clever to have the three-dot tattoo.
Plus that explains the high pitched voice RJ has.
She is naive enough for us to understand she is extremely clever.
She always tries to stand against Jane and his tricks, kinda like challenging him.
Remember the episode where Jane went to visit Sophie Miller.When she called him she said "You are at her house right?"
She came up with the trick at Jane's house when the suspects were gathered.She hypnotized McAllister into thinking he is RJ.

She always comes and rescues Jane at the exact moment.Random?I don't think so.

Jane thinks he knows Lisbon well and can tell when she lies.But is that really true?
Besides we never got to see Lisbon's daily routine!And every time this subject comes at the surface she always avoids to answer.

She could easily be a member of Visualize at the past.She has a mysterious relationship with Bret Styles.

I don't accuse Lisbon for being Red John but I would like it if it turned to be that way.(Not a chance! :D)

Thanks for reading!