User talk:Alisonlaurendaydilaurentis

 Courtney Day DiLaurentis 

June 6th 1994-June 30 2007 Courtney was a main character in the Pretty Little Liars book series by Sara Shepard. Courtney DiLaurentis is the twin sister of the infamous Alison DiLaurentis. In the first books Courtney was believed to be insane but in "Ali's Pretty Little Lies" (the prequel to Pretty Little Liars) it is revealed that Alison made it all up. Alison was jealous of her kind, popular twin sister, at first she forced Courtney to pretend to be her, after Courtney told Mr. and Mrs. Day DiLaurentis a phycologist was called in to do assessments. Alison tricks the phycologists that Courtney is paranoid and she is sent away. The Day-DiLauerentis family moves to rosewood and then becomes simply the "DiLaurentis" family to cut ties with Courtney. One weekend Courtney comes back from the sanitarium and claims to be Alison. The DiLaurentis family then sends Ali away believing that she is Courtney. Courtney lives under the name Alison and must adopt her selfish, unkind characteristics.

Spoilers:

Alison killed Courtney with the help of her boyfriend Nick. Courtney Day DiLaurentis was killed at age 13 on the end of 7th grade sleepover hosted by Spencer Hastings.