I'm sorry, but I have to ask-why is Grace Van Pelt such a popular Red John theory?  I mean really, she's an even more absurd choice than Patrick Jane (and that's saying a lot!).  First of all, we have the incredibly overwhelming evidence that Red John is male.  Second of all, she is way, way too young to be Red John.  RJ began his killing spree in 1997.  So Van Pelt was a serial killer when she was 13 or 14 years old?!  And finally, we have several episodes of her getting emotional and/or breaking down in tears when only the TV audience can see her.  Does anyone really believe that the nearly all-powerful serial killer Red John would break down and cry after breaking up with Rigsby?  Or does she know a TV audience is watching her?  Really, how does anyone take this theory seriously?