The real Ali discovered it.
Courtney is alison's twin sister, who pretended to be her
Courtney wants to pretend to be Alison meanwhile Courtney was supposed to be in a mental hospital
Alison
Suffication
by hands
Yes. Alison had a twin sister named Courtney.
Yes
Courtney stole Ali's ring :) hope it helps
Yes, Allison got discovered in Pretty Little Liars
Alison killed her twin sister Courtney. The only reason why she killed her is because she stole her perfect little life and alison is in a mental home and Courtney is dead
Alison is A because Alison didn't really die-not exactly. Her twin sister did, Courtney. Courtney is a mental patient but she escaped and got her parents thinking that she was Alison. Alison escapes the hospital and kills Courtney.
she tried to be alison and she was in a mental ward