That's an opinion shared by a few sympathetic characters, including Jigsaw himself, a specific point of view. It would probably not be the point of view of a person in law enforcement. Looking at the serial killer page, he fits the profile of a highly organized, mission oriented serial killer. He has killed much more than three people, and playing and toying with them doesn't really change that he was the one who killed them. It's not a moral thing, it's a NPOV thing. -