Although not all serial killers are sex murderers, a significantly great proportion are. The very act of cutting, dismembering, binding, torturing, and/or killing is often more important to the sex murderer than the actual sex act. This somewhat differentiates a sexual murderer from a “rapist-killer” who as an afterthought murders his victim to prevent her from reporting him to the police. The psychological dynamic is entirely different, and the sexual killer is more predisposed to repeat his crimes in a serial pattern. Until the mid-eighteenth century, sex crime of any kind was virtually unknown, or at least largely unreported. One reason for this is the proposition that sex crime is a “leisure activity” requiring available time to develop and dwell on sexual fantasies and the freedom to act upon them. Prior to the industrial age the majority of people were just too busy to be fantasizing about sex. Most were desperately trying to feed themselves and survive various life-t...