I think Redjohn is Teresa Lisbon, or maybe she is the spie in the CBI. I think that because in the last episode from the 4th season she was the only one who knows about patrick's plane. Redjohn I don' t know maybe he is a careful person but he wasn't in the car and why did he choose Teresa ? He has already known that patrick couldn't kill Lisbon, because he is in love with her. And than I thought : '' Patrick kissed lorelay and erica but why not Lisbon?'' If Patrick do that Redjohn will have a jocker to play. For sure Redjohn is not Patrick. He can't kill people and forget what he have done. So this is my theory.
