Serial Rapist's Spree Ends in Suicide

This grisly tale is about a serial rapist named Mark Humphries who raped 9 women he had contacted through Craigslist escort ads. I'm currently working on several projects involving Internet prostitution, otherwise I wouldn't even know that Craigslist ran these ads (I rarely use craigslist for anything, but when I do, it's very targeted searches). But it does, as do several other sites, and the Internet in general has led to what appears to be an increase in both the demand for these services and the supply as well. Mainly, probably, due to falling reputational costs associated with falling probabilities of detection. Men can solicit prostitutes, acquiring substantial information about them, through the Internet without fear of detection. But, while this change in venue likely does reduce the risks associated with escorting, it does not eliminate them entirely. Escorts will always have the challenge of screening clients beforehand, for instance. Some of the higher priced escorts use more elaborate methods to successfully screen their clients - requiring clients have letters of recommendation or references from other providers, for instance. Or if the call is an incall service, meaning the client comes to some agreed upon venue arranged by the provider, the provider will pick places where she watch him approach. These were all outcall attacks. Either he was picking these places, or they were picking the places but he was arriving there before them. Either way, they were outcall, which is lower cost in some ways, since rooms can be rented by the hour or the evening, but are higher cost in other ways, since they mean higher probabilities of attacks, less security, etc. Thankfully, his spree ended, although it ended with him killing himself after detectives tracked him down. He left very little clues and evidence behind, making him a hard predator to catch, but some cooperation by one victim and some other lucky breaks managed to break the case.