A serial killer was behind the cold case murders of two women in Washington County in the '70s, state police say.

Pennsylvania State Police have identified a serial killer responsible for two murders in Washington County in the 1970s, and authorities say there could be more victims. DNA evidence has finally ...

Utah authorities formally linked another unsolved murder dating back more than 50 years ago to one of the most prolific ...

Utah authorities have used DNA evidence to connect serial killer Ted Bundy to the 1974 murder of 17-year-old Melissa Ann ...

A closer look at the unsolved 1995 cold case of an El Paso mother, Celia Loya, found slain in her East Side home.

Here is a select list of convicted American serial killers and notable open or unsolved cases. Serial murder is defined by the FBI as two or more killings separated by a span of time. Serial murders ...

Add Yahoo as a preferred source to see more of our stories on Google. As Daniel Conahan Jr. faces execution for the 1996 murder of a man, questions remain about his links to unsolved killings across ...