If this was the case, and he's NOT his own father, then saving his dad would make his mom cheat on the man with you ('cause there's no way we're not getting there, and this is true with or without patch) ... and that doesn't really feel like the kind of game we're playing, so unfortunately even if he saves his aunt and others, I don't think he'll stop whatever kills his dad (unless he being his own dad is true) Also, I'm pretty sure the girl with Riley when she finished braining the principal is April, but that's just speculation right now.