Criminals being dubbed the latest "Craigslist Killer" seem to be popping up everywhere.There was Michael Anderson in Minnesota, who lured to her death a woman answering an ad for a nanny; a 16-year-old S/M enthusiast who killed a New York City radio newsman who posted an ad; and a yuppie who used the online marketplace to meet hookers he would rob, killing one.The incidents have sparked law-enforcement officials across the country to go after Craigslist, and in some ways founder Craig Newmark is
