Can police find the killer of two teenagers discovered inside a car?

Police must connect the crime scene evidence from two eerily similar murders to put one vicious killer where he belongs: behind bars

Police struggle to dissect the love triangle that led to the disappearance of 21-year-old married college student and mother Bethany Decker in Ashburn, VA; her jilted husband, Emile, and her jealous new boyfriend, Ronald Roldan, are prime suspects.

Can police solve the murder of a young woman killed while celebrating her graduation from U.S. Naval training?

In 2014, police discover that Tiffany Pugh, the successful wife of a popular DJ, has been murdered in her home in East Point, GA; the array of video cameras in the neighborhood could help bring her killer to justice.

Police use a revolutionary new technique to sort through a long list of guests and employees at the Paradise Ranch to find the one person responsible for a savage murder...

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Will a heartbroken mother's quest for justice lead police to solve the murder of her daughter?

Paula Zahn talks to investigators, witnesses, victims' families and incarcerated criminals.