Talk:Season 5/@comment-99.71.209.164-20140611160248/@comment-71.230.57.218-20140615213825

Aria knew they were there because she called the phone to Ezra's family auditorium thing before the girls went back to the stage to grab their things, which is when Shauna appeared. I'm pretty sure Aria knows how to differentiate a real gun and a fake gun.