In the beginning of the shoot, the three film students interviewed the townspeople of Burkittsville. One of them was Mary Brown, a local "crazy". She has seen the most of all the townspeople, and from what Heather gathers, has last her mind.

Theory 1.)Mary Brown was behind everything that happened to the students, I mean c'mon, shes crazy!

Thoery 2.)Shes just an elderly lady with noone to talk to.

Thoery 3.)Blair Witch never dies, if you were a witch and lasted that long, wouldn't you look like Mary? Hmmmmm

Theory 4.)Akita -Her gate was made of tied sticks, and her fence was tied with pieces of cloth. She was the Blair Witch.

Theory 5.)Diana -Yes, she is crazy, but in a gentle, clumsy sort of way. If she had been trying to creep around the woods she probably would have made a lot of noise with dry leaves & sticks.