The dating world is bad enough. Some unscrupulous souls make it even rougher by throwing in a little murder and mayhem. Man's attempts at improving the odds with technology and newspapers have not helped. We dash through a few bad experiences from 1940s Lonely Hearts Club murderers, such as Raymond Fernandez and Martha Back. Then we cover some of the modern day versions, from Craigslist purchases gone wrong to catfishing and a murderous niece.