Who Is "A"? Our Prime Suspect List

Why It's Possible:

• She's back in Rosewood and mourning the loss of Shana. And she seems more hell bent on revenge than ever.
• She has the biggest motive, because the girls blinded her.
• She's been involved with other bad people, like Shana and Garrett.
• She lied about her surgery's success. What else is she lying about?
• We know she was at odds with Ali before her disappearance. Even when the girls first meet her, she knows who Ali is . . . and Ali has already begun to receive texts from "A."

Why It's Not Possible:

• Well, in season four, Jenna falls under attack (by whom, we don't know), and winds up face down in a lake.
• There are a lot of times in the series where Jenna seems scared for her safety and at the mercy of someone else. Like when she leaves town, fearing that Nate is dangerous.