Pretty Little Liars Video: Has 'A' Been Outed?

Pretty Little Liars wraps its spring season Monday (ABC Family, 8/7c), and things are not looking good for the fabulous fibbers. “A” is pushing the girls to their breaking point, and we’ve got the exclusive video to prove it!

Now that Aria (Lucy Hale), Hanna (Ashley Benson), Spencer (Troian Bellisario) and Emily (Shay Mitchell) have found Alison’s coveted key — and its accompanying and incriminating video! — they’re on a mission to take down the stalker. But who is it?! Looks like the prime suspect is Jenna (played by Tammin Sursok), but what is she really guilty of? Judge for yourselves via the first look video below:

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So, what do you think: Is Jenna the ellusive lurker, or just a high schooler scorned? Find out Monday at 8/7c on the Pretty Little Liars finale.