Honestly, I think the wolves made a shit play by poisoning SIU/Kami.

My thought is that if Kami is in fact a villager, that the wolves would not poison her. Why? Because she's a currently a liability to us so risking her death only helps us in the long run. Which would mean that I think our own poisoner poisoned Kami. Leaving SIU to be poisoned by the wolves, making him lock village. (I'm discrediting the possibility that the wolves poisoned one of their own.)

But why poison SIU, the counter-wagon? The longer he's alive and within the PoE, the more difficult time we'll all have.

I honestly cannot see a scenario where Kami and SIU are not v/v.