My point was, it would be nice if a person or group could operate as the people do in the show. The show up, take care of business, and disappear.
I once heard about a group that kills child molesters as they're released from prison. From what I recall, they recruit terminally ill people to perform the hits - because they have nothing to lose. Maybe it's just an urban legend - but it's fun to think about.
In recent news, a federal prisoner (life sentence) killed 2 child molesters in prison - because why not, he had nothing to lose.