Why It's Him: Now that Jason has officially returned to Rosewood, it's time to put him on the suspect list. Given his previous involvement with the N.A.T. Club and his closeness to Charlotte, it would make sense for him to want to play a part in the end of this whole mystery. We have to remember Jason has dark tendencies.
Why It's Not: In the end, Jason wasn't really involved with Charlotte's original game at all. In fact, no matter how many times we've suspected Jason, he's always proven to be pretty innocent.