Through all this  ive held onto is 2 words spoken by RJ when he saved him from the slasher film buffs,2 words only 2 people could have known .After walking away he comes back and  tells patrick that a friend says "roll tide"

This was a phrase that Kristina said to Patrick as they were having dinner before she was kidnapped, She is very smart and has same skill set a Jane and the ability to control  people with her ways. but this was her slip up ! only 2 people were there with no chance of being overheard.