I think that Kirkland has nothing to do with Red John.
Do you remember Jane talking to Lennon before he was shot? Could it be the Jane hypnotized him so that Lennon said he worked for Red John.
When Kirkland talks to Lennon in the hospital, he uses the same expression that Jane used.
I am not sure yet what all this means, but I think that Kirkland wanted to know if Lennon was clear or not.
I think, Lennon never knew Red John. Jane wanted Lorelei to think that he knew RJ.
Also when Jane saw Lorelei dead he mentionned: "She had it coming". Why should he say that? Is it because she didn't say Red John's name? Because she killed Lennon?
I still suspect Walter Mashburn to be Red John. Who else would have so much influence on other people, especially women? He and Jane liked each other and also they like the same woman - Lisbon. It seemed like a game for Walter to get a date with her... just because he felt that PJ likes her so much.
