After the violent conclusion of a missing person quest, you can ask about "what happens to the missing person now?" They'll say something along the lines of "we've taken them back to headquarters for evaluation" - you can press further and make sure that this person hasn't been killed, etc etc. What makes this a little strange is that the person in question is still in the same room.
I think a post-fight fade-to-black or having the "where are they now" dialogue only trigger once you leave and come back might resolve this.