But if Charles is really their brother, and Charles is really A, then I can't see it being Ezra. We know too much about his background imo, he wouldn't fit as the psycho Dilaurentis kid
ETA: I know there was a theory about his family being involved in Radley so maybe they adopted him, idk lel
Is it right to think that since Marlene knew who the killer was going to be at Season 3, that the person should have appeared in the first three seasons?