This episode might just be the scariest that American Horror Story has ever done because it's the one the most grounded in reality. The show can be so fantastical that it's easy to distance yourself from the horror. But "Piggy Piggy" takes viewers inside Tate's (Evan Peters) high school massacre and it is absolutely stomach churning. It also leads to Violet's (Taissa Farmiga) suicide, though Tate appears to save her life. Plus, the ultrasound tech says that Vivien's (Connie Britton) baby is the Antichrist.