Bob Franken: Human Killers

I think we all can agree that we wouldn't want to be Walter Palmer right now. He's that Minnesota dentist who's suddenly become the object of intense contempt for killing Cecil the lion. Palmer, whose hobby-sport is big-game hunting, shot and killed in a gruesome (and allegedly illegal) way the majestic black-maned lion Cecil, who had captured the hearts of the people in Zimbabwe and animal lovers around the world.

Palmer pays big money to hunt down various exotic animals. He apparently displays their heads as trophies. But now his life is in danger, or it certainly seems that way. At the very...