Driving down to the Jersey Shore, my spouse and I select the one and only obvious option for listening: a serial-killer podcast. "What I want to know," says our host, the Crime Junkie, "is every last detail about the remaining bodies on Gilgo Beach. There are other bodies. Did Rex just focus on the (now-famous) four? How about the extra real estate in Las Vegas? You're telling me it's just a coincidence that Rex chose to buy in that particular city?" Later that evening, the Times runs a story on serial killers. They--the killers--are a dying breed. In the eighties, if you were a psychopath, you would possibly take the Dahmer route. But methods of detection are getting so much sharper. You don't want to roll the dice with DNA technology. Now, if you want to do harm, you go to a school or a night club and murder twenty people in one fell swoop. This is hard to accept. The logic doesn't work. If the fear of getting caught is the thing that keeps you fr...