Why He's Guilty: Lucas is far and away one of the most suspicious Rosewood residents. He has an apartment right in the center of town. He's been know to join forces with Jenna Marshall, to befriend Mona, and to conspire against Ali. What better way to make her pay than to kill the person she loves most?
Why He's Innocent: He's so busy being a multimillionaire and meek-shall-inherit-the-earth badass, it seems kind of silly that he'd bother regressing back to high school. Plus, he's always had a thing for Hanna, so much so that he's willing to be her alibi.