Will the ring of a doorbell overheard during a teenager's final phone call...be the key to solving her murder?

The discovery of a woman's brutally beaten body inside an abandoned trailer is the start of a 28-year search for her killer.

Will a college student's courageous battle for survival be the key solving a vicious double homicide?

Cell phone records may help solve the disturbing murder of a popular teenager.

After coming to the aid of a stranded roommate, Stephanie Brown's car is found abandoned on the interstate and her body is later discovered floating in an irrigation ditch, the victim of sexual assault and murder.

A cold-case detective reopens a decades-old murder case and promises to get justice on behalf of the victim's family.

A woman is murdered while walking home from a dance club.

A talented chef's abduction is the impetus for what will turn out to be a chilling homicide investigation.

Police retrace a young woman's final movements hoping it will lead them straight to her killer.

A young woman is ambushed and murdered in Utah's Big Cottonwood Canyon.

In Lenexa, Kan., young women disappear from their apartments as police piece together evidence showing the terrifying crimes are connected.

After Navy electrician Michael Jacobs comes home to find his wife, Suzanne, and 3-year-old son, Colin, murdered, San Diego police race to catch a serial killer who leaves behind an unimaginable calling card.