This is my first post and I really don't have a guess who Red John is. I would, however. like to discuss some things from the series as I have seen it.
I think that the secret on how the memory was detected by Red John has to do with Patrick's stay in the mental hospital. He has no set memories of what happened during this time ,and I believe that a psychiatrist helped him. He seems to have only fond memories of her. She, however, may have discovered the memory during his treatment and told Red John what the memory was about.
I really think that Lisbon is the key to this epsiode. She has an injured arm (from where we don't know)) and was the only witness to the end scene. I think that she was essential as Patrick already knows from the DVD what the list was going to be. He gets her to deal out the suspects (not him) ans she seems genuinely surprised. I think the final scene was an act for her and will serve Jane's discovery of Read John.
