It isn't for definite, and we have no concrete proof of anything, but something about the wording of the Pained Purple Statement makes it seem as if they can kill. I mentioned before that it is possible that they can kill, and I would be surprised if they couldn't, because that would make them a Survivor not a Serial Killer, which implies a much more passive, nonthreatening position.

If a Survivor was present and Karifean was using the normal Mafia rules as on the wiki, Survivors win when any faction achieves their win condition. If Town had just killed the last Witch-aligned person and activated Pained people were operating under 'Survivor' style rules, then we would have won. The exception to this would be if there is one more witch.

I will say, all of this talk of Pained is kinda making me forget how many Witch-aligned players are left. We killed Nutty the Witch, we killed Scruff the Cynic. Does that mean there is one more Witch? And I'm not counting TSoL in that count because he's claiming he is Human-aligned, despite being a Witch. If he's telling the truth, does that mean there's one more Witch-aligned person out there, plus Pained?