Exactly, that's my problem with the quest. You can only find out about their identity after they are dead. Which doesn't help your decision if you are playing a neutral rational character like the one I am playing now.
On my first playthrough, I played a Lolth sworn drow so I found Karlach story appealing and I didn't mind killing who appeared to be a paladin of Tyr.
There should be an obvious hint somewhere in the house or in the surroundings about who they really are.
Last edited by Nyanko; 18/10/20 08:41 PM.