Who would want to kill Kristil Krug, a mom of three kids? Follow the clues in a race against time to catch a deadly stalker.

In 2010, Joseph and Summer McStay and their two young sons vanished from their Fallbrook, California, home. For nearly four years, the family’s fate remained unknown—until a grim discovery in the Mojave Desert turned the missing persons case into a homicide investigation.

21-year-old mother Denise Amber Lee disappears from her North Port, Florida, home. Follow the real 911 calls as they unravel in this life-and-death case.

In Horry County, South Carolina, Gregory Rice's disappearance in early October 2020 sparked a search that eventually uncovered a secret affair.

In Mayfield, Kentucky, 18-year-old single mother Jessica Currin was brutally murdered in 2000. The case haunted the town for years until a jury convicted Quincy Omar Cross in 2008. What began as a local tragedy has become a national conversation about truth, power, and accountability as Cross's claim of a wrong conviction gains momentum.

The Murdaugh family once held deep roots in South Carolina’s Lowcountry, where generations served as top prosecutors and wielded influence across legal and political circles. But behind the prestige was a web of corruption, financial crimes, and ultimately, murder.

At Fort Bragg, North Carolina, 24-year-old mother and Army maternity ward nurse Holly Wimunc suddenly vanished in July 2008. At her apartment, coworkers reportedly found smoke damage and signs of an intentionally set fire. While detectives scrambled to find her, her father, halfway across the country, was just learning his girl was gone.

A college student is murdered in her home, and while investigators work the case, evidence from a string of sexual assaults leads to a break; a survivor who helped authorities catch the killer speaks out for the first time;

A beloved hairstylist vanishes without a trace, launching a multistate investigation that ultimately uncovers a chilling trail of deception.

After a 24-year-old mother is brutally shot and killed outside her workplace, real-time surveillance video helps detectives uncover clues that lead to a suspect whose own confession suggests a possible mastermind still at large.

A wealthy grandmother goes on trial accused in the murder-for-hire of a family member.

A dogged detective will stop at nothing -- donning disguises, going under cover, and employing cutting edge forensics -- all to solve the murders of two young women

From Mr. Right to most wanted: Investigators uncover the double life of an international fugitive.

A teen musician is murdered in her home, another young woman is brutally attacked nearby and the link that helped police catch the killer.