So I thought about this overnight and I think my answer is kind of clear.
Zipped clearly wants to be killed, whether that's a game related reason like a visiting him is bad in some way or he was trying to hint to turmoil to protect him tonight. Or a non-game related reason like he just wants out of here so someone else can solve. Could go either way but if he wants to die then that means I do not kill him tonight.
nin is an interesting case. By all accounts for my safety, I should remove him from the board tonight but he has put me into the difficult situation that I am the last person he named for death. It's clear as day that killing him just points to me. We are still losing this game right now no matter how you slice it so I have to do something crazy and hope that I can trigger people's emotions just right so that they do something completely different from what they wanted to do. So with all that, nin is also off the table for tonight.
This is insanely rough because those are the confirmed players in the game. Even without my check, nin proves himself with the override. And as much as nin wants to posture towards Zipped as being a deep fake cop, no one else will go for that (even though nin exactly being the one creates a very interesting world if he decides to override there). To avoid completely removing an unknown from the poe, I think the only play here is to
KILL: Aeleus
If they created a lover's chat tonight that would be fantastic but I don't even need that tbh, they are the only kill that doesn't point to me and I avoid this whole headache of whatever Zipped is cooking. Now if Zipped really is just using a regular ass power like a watch or a track or something that can just mechanically catch me out then gg but I don't see why he baits the kill instead of just keeping quiet and hoping for the best. Even at that, there's no way he has another alignment check, it should be a watch if anything and that's fine, he probably watches nin.