American Horror Story: 1984's Zach Villa says he didn't see the full season finale script until a few weeks ago

TheWrap

“Part of it is, I think, they’re trying to get the right sauce from the writers’ room, as they should,” says the actor who portrayed Night Stalker Richard Ramirez. “They have that privilege to really analyze, ‘Oh, eight episodes have been out so far, how do we put a really good nail in the coffin, so to speak, and bring it home? I think as a writer you have to reserve your right to change your mind up until the last second, especially if it’s not the right choice. So luckily there are enough people that it goes through before you’re like, ‘Oh OK, this is the thing we’re gonna do,’ and everybody decides. So I think it was in their best interest, ultimately, to hold it.”