On the Case

Sixteen-year-old Velda Rumfelt's disappearance in Brentwood, Missouri, in 1977 marked the beginning of a tragic, decades long mystery.

In San Antonio, Texas, video game store manager Amber Belken is murdered in an apparent robbery gone wrong. On further investigation, however, detectives are troubled by the evidence.

Twenty-year-old college student Kim Montelaro goes missing from a mall parking lot, then her lifeless body is found in a ravine five miles from the mall; investigators piece together the timeline of Montelaro's last moments alive and crack the case.

Officers investigate the death of a father of four who was gunned down, however nothing about the crime is what it appears to be.

Paula Zahn investigates the story of a Las Vegas starlet who mysteriously vanished during a visit to a local spy store.

A sexual sadist known as the East Area Rapist terrorizes California and its law enforcement officers for decades.

Nine days after 11-year-old Mary Stiles goes missing while trick-or-treating, a letter arrives at the police station leading investigators to Stiles' body; then, investigators must decipher a series of riddles before the killer strikes again.

Fifty-year-old mother of three Marilou Johnson disappears from the home of her boyfriend, Roger Blanchard, a wealthy retired businessman, then it becomes clear Johnson has met with foul play.

After missing newlyweds are found murdered, family members and friends point fingers at each other, leading investigators to believe someone close to the victims is responsible for their deaths.

Patti Berry disappears on the way to pick up her child at the babysitter's, then her body is found in a secluded wooded area not far from her abandoned blood-soaked car.

Paula takes a look at the disturbing disappearance case of a teenager who vanished without a trace from a cinema car park.

Paula takes a look at the shocking discovery of a mysterious young woman who is found in the ashes of a fire.

Paula examines the discovery of a young woman's lifeless body on the bank of a shallow river. A note in her pocket may point to her killer.

Reeda Roundy and Betty Gray are found murdered in Roundy's home, along with a message written in blood, saying `Satan Loves You'. Detectives piece together the stunning truth behind the murders with insights provided by the victims' families.

John Greathouse finds his stepdaughter, Kelli Bailey, murdered in her bedroom; investigators find a video tape and a dead man's forged check and hope these clues will be the keys to bringing Bailey's cold-blooded killer to justice.

In Las Vegas, 41-year-old Nancy Menke, a mother of four, is found handcuffed and murdered in the passenger seat of her car; a records clerk in the insurance fraud unit stumbles upon a strange report that blows open Menke's murder case.