And just like that, the seventh Summer season of Pretty Little Liars has come to an end. The finale was harrowing and bloody, yielding a gruesome death and eliminating three major suspects from our list of potential "A.D." perpetrators. With a long wait ahead for new episodes, it's time to hunker down and think. We haven't gotten any closer to figuring out who killed Charlotte DiLaurentis, of course, but the biggest, most perplexing question remains: who is this "A.D." who's perpetuating the most dangerous game yet? We've compiled a suspect list, just for you.