Talk:A's Messages in Season 3/@comment-86.219.201.117-20120807201149/@comment-24.21.169.128-20120829070327

It's Alison, she killed her sister who pretended to be her while Alison was taken to Radley i the place of her sister, so Courtney was buried under Alison's name. The answer is on this site.

P.S.- Don't pretend to be A. It's actually kind of lame.