Someone's Dying in the Pretty Little Liars Finale, but Who?!

The entire show all comes back to Jenna. It's always been Jenna. The "Jenna Thing," when the girls accidentally blinded her, is one of the events that set everything into motion. And ever since, Jenna's been a founding member of the "A" team. She was the one who hated Ali, and played somewhat of a role in her disappearance. She's the one who got Shana Fring to attack the girls. Even in season seven, she's working with Noel Kahn to take them down. Taking out Jenna could really be the answer.