I Think Kristina Frye is RJ.

She will use amles to do her "dirtywork" and hypnotize people to help her without knowing what thay are doing.

I Think that more than one on Janes list is under her Control.

The best way to hide is in plane sight.
And if you are one of RJs victims then you cant be RJ!


Back up theories:
In S2 final I Think it looks like RJ has female rubberboots.

At the first killings RJ used a "stungun" this indicates to me that he (or she) not has the physical streth needed.

By the way...
Is"He is Mar" realy written by the dead male. Is it not on the wall next to the dead female.
If so she did not know RJ. I Think this is written by RJ to confuse PJ.
If it means somthing I Think it shoul be "He is marionett" = Someone else is pulling the strings