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Ali killed her sister because she was pretending to be her, so she pushed her into a hole and the next morning the workers filled up the hole and she was gone. So ALI disappears and at the end of book 8 it is not known whether she is alive or not.
Anyway, to sum it up Ali killed her sister Courtney because Courtney was pretending to be Ali in the beginning of the summer where Courtney was Ali and Ali had to go and pretend to be Courtney in a mental hospital.
What else can I help you with?
Why did Ali kill her twin sister on Pretty Little Liars?
She was pretending to be Ali
How did Ali kill her sister on Pretty Little Liars?
Ok heres what happened... Ali's sister Courtney was metally ill and always pretended to be Ali. One day Ali accidentally was taken to the mental hospital instead of Courtney. Ali killed her and threw her in the hole in their backyard.
Did Ian help kill Courtney in Pretty Little Liars?
No, her twin sister Ali did.
Why did Ali kill her sister in Pretty Little Liars?
Because her sister, Courtney, ruined her life. Courtney pretended to be Ali so who the girls thought was Ali the whole time they were friends was really Courtney. Because they were twins their parents thought Ali was Courtney and sent Ali to the mental hospital instead of Courtney. Ali escaped and killed her sister for revenge.
Why did Ali want to kill Melissa in Pretty Little Liars?
shes married to the guy her sister was last dating
Does Spencer kill Alison?
No... Ali killed Ali. See the 'Alison' that died was really Courtney, Ali's twin sister. No Courtney was killed by Alison because Courtney stole Alison's straightners... i mean Life.
Who are the A's in Pretty Little Liars?
Mona is at first. But she gets killed trying to kill Spencer when Spencer finds out. Ali ends up being the real A because she had a mental twin sister and so Ali never died. She killed her sister.
Why is Alison torturing Spencer aria Hanna and Emily?
Because they helped her evil twin sister Courtney ruin Ali's life. They didn't on porpoise though, but Ali tries to kill them too.
Is laila ali Muhammad Ali's sister?
No, she is his daughter.
Did Spencer sister husband kill alison?
yes of corse he did duh dintet you see the the viedo she was trying to kill him before he killled her.hope this helps :) :) No. He did not. It's very confusing. Alison has a twin sister who is crazy in the head named Courtney. Courtney took Ali's perfect life and for Ali to get back ali killed Courtney. The Pretty Little Liars never knew about Courtney so they thought Ali died but really, Courtney died. Confusing right?
Why did Jenna kill Allison in Pretty Little Liars?
Jenna didn't kill Alison. Hello she's blind.! Ali killed Courtney her twin sister. Who took over her life.
Did Mona kill Ali?
No. No one did. Her twin sister Courtney got killed because Courtney was pretending to be Ali. After Alison (Courtney) got in an argument with Spencer Alison got her revenge of killing Courtney.
