I don’t think he’s A. They just wanted to blow our minds. The promo shows him appearing as himself and the girls look fine. Then it shows the guy in the gas mask. My theory is A sent Ezra a text and he went to the lair saw what was there and was pissed because of all the crap about him and Aria. There’s really no clues pointing to him other than him showing up at the lair which in this show doesn’t surprise me. October can’t come fast enough.

I honestly think they are just making us think that way. In the video if you look at 0:23 you can see Ezra standing with the girls looking just as confused as them. Even if he is all the clues point to him, I still want to believe its not him.