We'll I think it's Ray Haffner because Brett and Bob is dead so we eliminate them from the list and that would leave 5 suspects left so we can cross out Gale, Tom, and Reede because they are all part of the Tyger Tyger group so that leaves Ray and Bret, why would Bret be RJ, I mean I think he knows who RJ is and is likely takes care of him when his dad died and that's why he knew what happened to Christina, and that leaves us with Haffner.
Also whenever the recording of the stuff about RJ was recorded the fear of heights also sounds like the fear of bugs and did you see Haffner's face whenever he saw that spider.
