In the mentalist season 2 episode 23 R.J.  whispers to P.J. "Roll tide" at the end of his poem when he reappears on the viewers right side of Patrick which is his left. Anyway at the beginning of the episode Kristina Frye also says "Roll Tide" when she is talking to the waiter if I remember it correctly. So I assume either she is R.J. or she is his accomplish or something. plus how would she know where to find the body. Though in all honesty I would find if lame if she were RJ