hi, at first im not with theory's who said that Patrick is red john, because Lorelei said that Patrick and red john shook hands, so it mean's he is not, but my theory and guess is about Brett Partridge, he seemed like an idiot and enjoying too much his work (Patrick Jane said the last one) , but if we take a deep look isn't it a good undercover and a chance for Red John to watch closely the consequences and the result of his job , to see the fear in the eyes and maybe to hide an evidence and mistakes, another clue watch this video http://www.youtube.com/watch?v=iRR3PT-uk4w  . when i see Brett Partridge i see a deep anger and craftiness in his eyes.                                                                                                              think about it ;)