Joe Dziemianowicz

Businessman John T. Hancock had a long list of enemies. But who would murder him and his mother in such a brutal way?

Seven months after Private First Class Vanessa Guillén was bludgeoned, dismembered, and burned, questions remain about the case. Her family wants answers.

Kelly Siegler, Steve Spingola, and Abbey Abbondandolo take audiences behind the scenes of “Cold Justice.”

Private First Class Vanessa Guillén’s body was burned and dismembered after she was murdered.

Edward Charles was a disappointment to his parents and constantly outshone by his younger brother. He seized the spotlight by killing all three of them.

Kenneth Stahl and his wife, Carolyn, appeared to be the perfect couple. A shocking contract-murder plot revealed looks can be deceiving.

After murdering her husband in Minnesota, Lois Riess fled to Florida, where she befriended her next victim: a woman named Pamela Hutchinson who looked just like her.

Campfire revelry for five innocent South Dakota teenagers turned deadly when three cold-hearted brothers shot to kill. The lone survivor lived to see justice done.

The slaying of topless-bar mogul Horace McKenna left him riddled with bullets and investigators with a cold case.

Skylar Deleon, who appeared on Mighty Morphin Power Rangers, tied Tom and Jackie Hawks to the anchor of their yacht and then threw them overboard with the help of his pregnant wife.