I believe that Red John is Bob Kirkland for a few reasons.
1. Bob Kirkland asked Jason Lennon if he recognized him before he killed him. I reckon he asked that because he has changed his face and name after Red John killed that guy in the Bath tub in the 11th episode. He changed his face and name because the guy wrote"He is Mar/Man" and his original name had mar/man somewhere in it.
2. Yes, he is on the Red John list that Jane has. He has also killed John Lennon and has stolen the information about Red John that jane had before Lorelei was killed. And that is how he knew about the list in the season premier.
3. He is how Red John has been described. Shortish but quite a strong man, calm and high voice and is about the same build as Jane.
