@icarushector It's appropriate for them, sort of, but normally that kind of death spirit just sort of . . . make things official. It's your time, you die, they collect you and take you where you should go--they don't actually kill people. But these people's deal is, to keep the wax girl alive they're finding people who need revenge they can't get, killing off someone who maybe deserved it, and taking 10, 20, 30 years off the life of someone who maybe didn't deserve it. So there's two possibilities: Either they're not too picky about who they do in for pay, in which case they're mass murderers the old fashioned way. Or they're very careful that every single person they're paid to get rid of was seriously asking for it, in which case they're mass murdering their relatively blameless clients--not instantly, but in a while. Each client counts as maybe half a murder on average. If a client actually had less life left than the other person, they'll die right away so it'll be a simple direct murder.
Now it does make sense for them, but in a series I just find it hard to root for mass murderers as a rule--now and then in really gonzo stuff, but not normally.