Red John is Robert Kirkland.
His height is right.. He is bought into the plot as a suspicious character which is later verified as a key character in the pilot. In the mentalist they always play down a character as the show goes along and then they turn out to be the one they are lookign for. I think this will be reciprocated with Kirkland. He has strong connections to the FBI and works in homeland security himself. He looks the part and phsycially strong enough to lift the chair which Jane was strapped to in earlier series. Lorlei say's " they have met", also that they she doesnt know why they never became life long friends from the moment they met which suggests someone that isnt as close as the team but someone who jane has met and not established a close enough relationship. Bruno Heller said he would make us think twice as to who Red John is and I believe further into the series his role will be downplayed into one of the "good guys" so to speak. Keep an eye out for him. By the way I have been able to guess the murderer 8/10 times before any major clues have been revealed. The format of Heller has stuck into my head even though I cant explain it.
