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Police suspect natural causes as they investigate a man's death, until they they uncover a love triangle that turns the tragedy into a tangled mystery. Andrea Canning reports.

In 1989 20-year-old Krista Martin's life is tragically cut short when an intruder interrupts her dinner, leading to an investigation spanning four decades.

Genetic genealogy unmasks a serial sexual predator terrorizing the Phoenix metropolitan area.

Forensic science catches up with a killer who murdered Mary Catherine Edwards in Texas in 1995.

Can new forensic science identify Cathy Sposito's murderer from an Arizona hiking trail in 1987?

Forensic science catches up with a killer who murdered Mary Catherine Edwards in Texas in 1995.

Can new forensic science identify Cathy Sposito's murderer from an Arizona hiking trail in 1987?

Cut up to HALF the cost of your monthly cell phone bill. Same Towers. Same Coverage. But a LOT less money. It sounds great but is it too good to be true? Join myth-busting legend Kari Byron as she takes on Big Wireless to save you money.

Are you making the most of your Medicare coverage? In this program you will learn about the variety of Humana Medicare plans designed to fit your needs, your lifestyle, and your budget.

When a recently divorced mom vanished, the search to find her was halted by a hurricane. As the floodwaters receded, investigators discovered the same deadly storm that slowed their investigation was about to flush out her killer.

The case of the missing girls from Washington who were snatched in broad daylight gets a lead after a new detective finds a connection.

Michelle Mockbee met her husband at the warehouse where they both worked. It was also where she met an untimely death. Security footage led police to a suspect but when it appeared justice had been served, a scandal turned the case upside down.

Radical James Kilgore of the Symbionese Liberation Army; the case of missing doctor Sneha Philip. Also: cash vanishes from ATMs in Indiana.

A prisoner escapes from jail with the help of a comb; an amnesiac is profiled; an attack on a business man is probed. Also: claims concerning UFOs over New York's Hudson River Valley.

A university student vanishes while bicycling. Also: an alleged UFO attack; a trucker's murder.

Peru 's mysterious Nazca Plateau. Also: a woman is on the lam after helping a man break out of prison; a daughter seeks her biological father.

A report on Bigfoot; a Florida manhunt for a con artist. Also: two fortune-tellers cause problems in Peoria, Ill.; an officer vanishes after being arrested for corruption charges.

A young woman vanishes while summering in San Francisco; a husband poisons his wife at his son's birthday party; a young motorcyclist is struck by a piece of wood from a passing truck.

Drug lords escape from an FBI sting operation; a man's body is found in his car.

Ghostly warnings of natural disasters. Also: someone sent anthrax through the US postal system; a man confesses to a crime, then claims the confession was coerced.

A deadly drug deal in Florida. Also: a nurse confesses to tampering with patients' medications and helping her convicted husband escape from prison.

A bank robber is arrested. Also: Lizzie Borden's purportedly haunted home; claims of coercion concerning a suspect's confession; the murder of Jamie Santos.

The death of George Reeves ("Superman"); a prolific bank robber; a purportedly haunted New Mexico hotel. Also: a cache of cash falls from the sky.