In the beautiful byways of West Palm Beach, along the canals a woman was fond dead in the canal. After some research they found that the woman was a prostitute. Even with all the evidence and DNA collected at the scene The detecives still had nothing to go on so the case went cold. Four yeas would pass before her case got looked at again. One of the Cold Case detective's who was reviewing some cases where crimes were committed in the area in which he worked his beat. With some new perspective on the case he finds signs that this womans killer has all the signs of a serial attacker and a kille. His trickery is to pose as a police officer to the local prostitutes and lures them into hidden places where he has privacy and assults them and rapes them. And at least 1 case he murders them. Doll Murder A woman from For Collins, Colorado thought she was safe in her own home, but one night in 1989 that myth was shattered. She was found murdered in her own home. The only things that were missing from her home were all her underwear. Semen and fingerprints were collected bt since there was no testing of DNA back then the case went cold. It would be 6 years when across town the womans underwear was found in a furnace. With this new discovery the case was re-opened to be looked at to finally settle the case (thetvdb.com)