11. Long Island Killer
Number of Victims: at least 10
The first victims of the Long Island Killer were discovered in December 2010 scattered along the Ocean Parkway. It was near two remote beach towns in Long Island, GIlgo Beach, and Oak Beach. Three months later, six more bodies appeared in the area, and all victims were reportedly from the sex trade. Most of these sex workers also advertised on Craigslist which was probably the method used by the killer to find victims. And now, let’s see what else we have in our list of most successful serial killers who have never been caught.