Not much has been revealed about the upcoming fifth season of American Horror Story, though Lady Gaga has spoken about it more than once, including on her social accounts. We got our first hint of her role in the recent past via the season’s first teaser trailer. Now more details have emerged about one of the returning cast members — Lily Rabe — and her upcoming role in the season. She’ll be playing as Aileen Wuornos, a serial killer. The news was revealed by American Horror Story’s chief Ryan Murphy.