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****SPOILER ALERT*****

No-
Alison has an identical twin sister named Courtney. Courtney always pretended to be Ali, so her parents sent Courtney to a mental institute (but by accident they sent Ali.) Courtney was pretending to be Ali in Spencer's barn. (The body found in the DiLaurentis' backyard was really Courtney-who was killed by Ali.) Ali had escaped from the mental institute and seeked revenge.
No it's her twin sister that is dead! Alison is really "A"

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7y ago

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