What about if a PC kills another PC?  In the section on harm in the rulebook there's an instance where Keeler is about to shoot Bran in the head with a shotgun.  (It's called off at the last second.)  I love this instance, and the game invites difficult situations which might result in this kind of outcome.  But it's hard to know what to do with Bran's player afterwards.  In *cough* D&D I would just hand off a high-powered NPC to the dead player, or have her roll up another character-- some random adventurer rolling through town that the party could recruit --but with the "Your characters are unique in Apocalypse World" principle it seems a little trickier to just procure a replacement. Thoughts?