At trial, Nolen Buchanan tried to pin the murders on his dead father, Adam Buchanan.

In 1999, Ronald DeFeo Jr. said, “I loved my family very much.” But 25 years earlier, he had killed all of them in an infamous slaying.

Driving directions and a witness sketch helped Florida investigators find the the man who murdered Joan Rogers and her two teenage daughters. 

Wisconsin investigators follow a trail of burned bodies, occult rumors, and deadly secrets to catch Bruce Brenizer, a mass killer.

Were the brutal murders of the Smith family in Pensacola, Florida tied to a pagan ritual?

Dogged detective work and license plate reading technology combine to crack a savage family massacre.

Investigators looked for the link between two brutally families murdered just days apart in Virginia. A wedding ring proved key to solving the cases.

To catch the killer who murdered Joanie Harper and her family, detectives had to show that a seemingly strong alibi was built on lies.

One of the killers behind the murder of the Duke and Hunt family "had absolutely no emotion, no feeling, no remorse, no nothing" while confessing to the slaughter.

A single fingerprint, tire tracks, and game-changing tips help Investigators piece together who killed the Kenney family in Texas.