Florida Keys, 1991. A young woman is last seen alive hitchhiking on Valentine’s Day. The next day her body is discovered along a deserted road

Sanford, Florida, 1984. The bruised and bloodied body of 25-year-old naval recruit Pamela Cahanes is found in an abandoned lot near the Naval Training Center.

A 17-year old girl arrives home in McCleary Washington and honks her car-horn. Her dad finds her distraught with duct tape around her mouth and her feet zip tied together.

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In 1976, a young woman is found dead at a military base in Orange County, California. Using forensic genealogy, experts break open the 40-year-old cold case.

2001, Greeley, Colorado, a 7-year-old girl is walking to school with her 8-year-old brother when an unknown assailant snatches her off the street and bundles her into his car.

Fort Worth Texas 1974. 17-year old Carla Walker is kissing her boyfriend Rodney in his car when suddenly the door is ripped open by an unknown assailant.

December 30th 1983. 22-year-old Diana Hanson fails to return home from jogging in Las Vegas.

In 1996, the body of a woman in her 60s is found in a cemetery in Annandale, Virginia (US), surrounded by empty alcohol and pill bottles, with a plastic bag fastened over her head.

The body of a little girl is found in the Arizona desert. Detectives are unable to identify her so the local community lays her to rest with the name “Little Miss Nobody”.

San Diego 1969. 23-year-old Mary Scott is visited by a friend when she fails to show up for work.

Pensacola, Florida, New Year’s Day 1985. The body of Tonya McKinley is found lying on the side of a city street.

In 1981, a female high school student is found dead on the side of a road. Police work tirelessly on the case until new DNA technology exposes the killer.

In 1998, a woman and her daughter are found brutally murdered, both shot in the head several times. The case goes cold for over a decade until genetic genealogy uncovers the perpetrator.

In 1963, the body of a toddler is discovered in the Keene Creek reservoir in Ashland County, Oregon, wrapped in a bundle of bedding. The child is determined to a white male, possibly having Down Syndrome. Despite the limitations of forensic science at the time, investigators are determined to find out who the so-called "Boy in the Bundle" is, and how he ended up in the water. After nearly six decades, developments in technology provide a major break in the case.

Niles, Michigan 1987, Terry Wood comes home to find his wife Roxanne lying dead in a pool of blood.

High school student Kim Bryant is last seen outside a Dairy Queen restaurant. Three weeks later, her body is discovered by three teenage boys hiking on the outskirts of town.

Colorado Springs, Colorado, St. Patrick’s Day 1987. The naked body of Darlene Krashoc is discovered by two patrol officers at 5.20am behind a restaurant.

When a woman takes a genealogy test to learn what happened to her estranged mother, she is shocked to learn that her DNA has helped law enforcement identify a Jane Doe and identify the murderer of 4 other victims.

A series of brutal and terrifying sexual assaults occur across northern Utah and Wyoming. 17 years later, new DNA technology reveals the perpetrator.

In 1977, the body of a young woman is discovered by blackberry pickers in Everett, Washington. The body is covered in flies and maggots. Police officers fail to identify the victim until revolutionary technology breaks open the case.

December 5 1982. Deputies from Jackson County Sheriff’s Department discover the body of a female toddler along the Escatawpa River in Mississippi.

A small community in Utah is shocked when an elderly woman is brutally attacked in her own home. Detectives use innovative techniques to solve the case.

In December 1987, the nude body of a 17-year-old girl was dumped on the side of a rural road in Ohio. She had been raped and strangled to death. Genetic genealogy is called upon to help solve this violent murder.

In 1973, two schoolgirls were found murdered in the Welsh village of Llandarcy. The killer's identity would remain a mystery until 2002.