0
She didn't .
She killed her twin sister Courtney who was in a mental hospital .
One day Courtney switched with Ali and Ali was in the mental hospital .
The Pretty Little Liars didn't know Ali had a twin .
So Courtney was acting like Ali the whole time .
Courtney figured out all the pretty little liar secrets .
And wrote them in her diary . Ali was jealous and escaped from the hospital and killed Courtney .
Ali has been hiding in Jason's house the whole time .
What else can I help you with?
Related Questions
Does Alison fling herself at Aria's boyfriend in Pretty Little Liars?
Yes. Alison flung herself at Noel Kahn, Aria's boyfriend.
Does the real Alison that is now crazy die in the end of Pretty Little Liars?
Yes she does.. she pretty mich kills herself
Is Cece Alison in Pretty Little Liars?
No. A friend of Alison's.
Did Alison get discovered in Pretty Little Liars?
Yes, Allison got discovered in Pretty Little Liars
Did the pretty little liars kill alison?
No.
Does Alison have a boyfriend in Pretty Little Liars?
Alison dated Ian.
Who's the killer in Pretty Little Liars?
Alison....
Is Alison in Pretty Little Liars dead?
noNo.
Who is the second 'A' in the 'Pretty Little Liars Wicked?
Alison
Does Alison on Pretty Little Liars hate Emily?
NO!
Who killed Toby in Pretty Little Liars?
Alison.
Who is red coat from Pretty Little Liars?
Alison
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