In 1970 and 1971, the bodies of six girls and young women were tossed onto the side of various freeways in the Washington DC metropolitan area.  Most had been sexually assaulted and then strangled - none were over the age of 18.  Like so many serial killers, the so-called "Freeway Phantom" not only tortured his victims before slaying them - he also taunted police, and worst of all, the families of his victims with phone calls - some from him and some from the girls themselves before he killed them.  But it was what made this monster's atrocities so unlike most other serial murderers that made them so striking:  Most of his victims were almost always found within hours of their abduction.  And most chilling of all - after his sixth murder, they simply stopped.  He vanished.  Or did he?  Nearly fifty years later, the mystery remains - is he still alive?  Is he dead?  Did something inside his warped mind simply switch off the desire to rape and murder?  Join Melissa as she digs in to this fascinating case and asks - as she always asks - does someone out there know something that will finally solve this puzzling puzzle?