Have you ever met anyone named WALDO? Would you ever name a kid Waldo?
Think about it -- not the comic book but just the name. Don't think of the Van Halen video for <em>Hot for Teacher</em> either, because that's taking it farther than I want to go with this. Just think of the type of person the word "Waldo" brings to mind.
Now of the 7 (... 6 ... 5) suspect on the list, which one would you name WALDO?
Bertram's kind of a Waldo, and -- back to the idea of the comic book -- is always just kind of there in the background. He doesn't really do anything. In fact, he does not really get involved or influence the plot much. He really prefers to stay out of the way.
Now I'm not saying I know who Red John is. After all this time, Patrick Jane does not even know who he is. If he did, he would kill him. Immediately. He'd just walk right into the office and shoot him on the spot first chance he got.
In Strawberries and Cream, Jane made sure Bertram was with him when he had his elaborate trap set to reveal the identity of Red John. He had a gun with him too, and Jane never carries a gun. And he used that gun to kill the man he thought was Red John. Right there, in public, in broad daylight. So you can be sure that if Jane knew Bertram was Red John, he'd shoot him right away. But you can't just shoot Waldo, unless you are sure he's Red John.