1. Mashburn likes Lisbon. Pursued Lisbon. Slept with Lisbon in the Red Hot episode. Lisbon has been spared to date by Red John
2. Mashburn's first introduction in the show - the murder victim at the car dealership had a $30K Tiger painting at home given to her by Mashburn.
3. Mashburn has the wealth to have the influence/connections needed to be Red John. For example, in the Redlines episode, he brags about having a lot of friends in the sherriff's department and the mayor's office.
4. Lorelei Martins said she was surprised that Patrick and Red John didn't become great friends when they shook hands. Of all the non-regular characters on the show, Patrick seems to come the closest to making friends with Mashburn. Certainly closer than any of the 7 on the list except maybe Stiles.
5. Mashburn kinda looks like Kirkland. Michael Kirkland?
6. Mashburn's first scene with Jane (lunch at the yacht club), Patrick makes a perceptive comment and Mashburn says "You're a psychic, aren't you? You have this charlatan air about you." How would he know that? Why would he say that unless he already knew about Patrick.
7. Mashburn's speedboat is mostly red and is named "Eliminator." He says something at the scene "I have no love of danger. Nothing's dangerous if you think ahead. If you plan it right, you can get away with . . . I was going to say Murder. But you know what I mean." He makes several jokes about being the killer.
