Your Theories (post in comments!)

I think the question we are all wondering is...who is A and who is Ali's killer?

Basically, I read Wanted last week and I flipped out over the ending!! Ali had a twin sister named Courtney who was mentally ill and always thought she was Ali. When Ali was inside one day watching TV and Courtney was in the backyard and saw Hanna, Spencer, Aria and Emily she began pretending to be Ali. When it was time to for Courtney to leave to go to a mental home, her parents took Ali thinking she was Courtney.

In 7th grade during their sleepover, Ali was hiding in the bushes and when Courtney came out of Spencer's barn, she burried her alive for stealing her life. Ali went back to her mental home but came back years later as Courtney. She became friends with the 4 girls and told them she was really Ali and she never died. When she led them to her summer home in the Poconos in the middle of nowhere, Ali locked Hanna, Aria, Spencer and Emily in a bedroom and set a fire on the house trying to kill them. The 4 girls found Melissa (Spencer's sister) in the closet of the bedroom along with Ian's corpse! They finally escaped through a secret passage and ran out fot he house. But Ali was left inside the house and died when the house exploded.

Basically that's what happened. I'm still freaking out over it!!