-Here are some thoughts of some people "Who" killed "Allison"(Courtney)

-Here are some thoughts of some people "Who" killed "Allison"(Courtney)

• The Pretty Little Liars never knew that Ali actually had a twin named Courtney, who was insane. One day, Courtney managed to switch places with Ali. The Ali that all the girls knew was really Courtney! When the real Ali finally came back, she killed Courtney.
• YES! Courtney is really the dead one, not A (Ali).

• Ali never died. She has a twin sister named Courtney, who is sick in the head, who pretends to be Ali all along, while Ali is away at a mental home. Courtney becomes "friends" with the four girls and learns about all of their secrets and keeps it in a diary. When Courtney (Ali) is supposed to be coming back from the home to visit her family, the real Ali murders her sister in revenge.

• Okay, in the last book in the series, Wanted, you learn that Alison DiLaurentis had a twin sister named Courtney DiLaurentis, who didn't live with the family due to mental issues. The twins are identical. Later on you find out that Courtney always pretended to be Alison, causing much confusion amongst the DiLaurentis family. The night that "Alison" disappeared, it was really Courtney in Spencer Hasting's barn, not Alison like the girls thought. Alison despised Courtney because back awhile ago, Courtney dumped Alison's popular friend Naomi, and traded her for 4 new "losers," who just so happened to be Hanna, Spencer, Aria, and Emily. Many of the girls adventures with whom they thought they shared with Alison, were actually with Courtney who pretended to be Alison. In the end you discover that the actual Ali killed Courtney for throwing away her perfect life. The body that was discovered in Maya's backyard was Courtney DiLaurentis. Ali is still alive, but after Mona Vanderwaal dies, Ali takes on the role of "A." So in conclusion, Alison is the killer, and she killed her twin sister, Courtney out of fury and revenge. She ended up killing herself by trying to kill Hanna, Spencer, Aria, and Emily.

• The person who was killed was Ali's twin sister Courtney. She was killed by Alison because she had stolen Alisons perfect life.

-All for now,bye guys.