On The Case with Paula Zahn

Police race to catch a killer with an unthinkable calling card after a man finds his wife and three-year-old son brutally murdered in their San Diego home.

As beautiful, young women continue to disappear out of their Kansas City-area apartments, police piece together evidence that the terrifying crimes are all connected.

A young woman is ambushed and murdered in a remote Utah canyon. A cryptic note leaves investigators wondering if her death was just a tragic coincidence or a brutal betrayal.

A young woman is ambushed and murdered in a remote Utah canyon.

When the body of a young woman if discovered on a cold winter afternoon in South Carolina, police retrace her final movements to find the killer.

Police race to find a killer after the decapitated body of a talented chef is found near Speedway, Indiana.

A woman's walk home from a night out at a dance club ends in murder. As the investigation unfolds, detectives realize the path to justice relies on following the evidence to an unlikely suspect.

A cold-case detective reopens a decades-old murder and promises the young woman's family their long-awaited justice.

An offer of help turns deadly when a young woman and her boyfriend find themselves stranded. Investigators are soon on the trail of a ruthless serial killer.

After the lifeless body of a popular teen girl is found lying on the side of the road, police look to her cell phone records to catch her killer.

A college student's courageous battle for survival may be the key to solving a vicious double homicide.

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

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

A 12-year old girl is kidnapped, following a brutal home invasion...Can police find her and her abductor before its too late?

When a young girl vanishes on the way home from school, her family and police are sent on a tormenting search for answers.

Police believe a mysterious double homicide is not what it appears to be.

Police try to retrace a young mother's last known movements in a desperate attempt to solve her mysterious disappearance.