Talk:Red Coat/@comment-98.109.19.38-20130209015117/@comment-4646141-20130209020334

Well when someone asked Marlene for a hint of who the leader is Marlene replied back "#BigA" which in Season 2, Mona called Aria Big A, and when people asked if it was Aria, Marlene replied "Anythings possible", besides that there are theory that fans do and they see hints and point them out.

If you go on Aria's page there's a section that shows why people think she's "A".