Bloodline Detectives

The first of at least ten violent sexual assaults in NorCal by the same man occurs in Sacramento in 1991. Almost 20 years later, groundbreaking investigative genetic genealogy finally puts this monster behind bars.

In the summer of 1976, the body of 16-year-old Carol Sue Klaber is found in a roadside ditch in Kentucky: she has been beaten, sexually assaulted and strangled. Fast forward to 2022, cutting-edge DNA science is employed to finally name the killer.

In 1987 New Mexico, the body of 38-year-old Donna Hyatt is discovered by her daughter. Two empty glasses of cola suggest she had company the night before. It will take another 36 years before investigative genetic genealogy solves this case.

In 2003, a man walking in the Sierra Nevada mountains finds a human skull. In nearby Mammoth Lakes, a family is reeling after a young mother mysteriously skips town. It'll take revolutionary science to piece this puzzle together - 20 years later.

Sacramento, October 1970. Nancy Bennallack is found in her apartment stabbed to death. Police try in vain to solve the case, but it would take over 50 years and major advancements in forensic science to finally get the answers.

When the unidentified remains of a young woman are discovered on the side of the highway in Dade County, Georgia in 1988, a thirty-year-long investigation ensues to identify the victim and her killer.

Huntington Beach, 1968. Boys on their way to school discover the brutalized body of a young woman in an oil field. Police are unable to identify her or her killer. It will take 52 years before DNA science is able to solve this double mystery.

In 1964 Hazleton, Pennsylvania, the brutalized body of 9-year-old Marise Chiverella is discovered after she disappears walking to school. Half a century later, a teen prodigy in investigative genetic genealogy helps detectives solve this crime.

Sierra Nevada, 1977. Horseback riders discover a woman's body discarded amongst the scenery. Two years later, another woman's body is found nearby. In 2017, investigative genetic genealogy is used as a weapon against the South Tahoe Strangler.

40 years after the sexual assault and murder of 20-year-old Robin Brooks in Sacramento, California, determined cold case detectives collaborate with scientists using revolutionary forensic techniques to identify her killer and put him behind bars.

In 1992, the decapitated body of a young woman is discovered near the Arizona Canal in Phoenix. Ten months later, another body - this time a teen - is located nearby. Dedicated detectives use forensic science to catch the infamous killer.

In 1988, a 2-year-old is discovered walking around an apartment alone in Santee, San Diego. His mother lies dead in a nearby bedroom. 34 years later, investigative genetic genealogy finally names the man who killed Diane Dahn.

In Three Rivers, Michigan, a man comes home to find his fiancée stabbed to death and their baby unharmed. It will take 34 years before cutting-edge science solves the mystery of who killed this young mother in 1988.

A young woman is found beaten, raped and strangled in Garden Grove, California in 1987. Two years pass until a woman in a neighboring jurisdiction meets the same fate. It will take years before forensics and police identify this serial killer.

In 1990 Mississippi, a woman is kidnapped and raped at knifepoint. Police are unable to identify the perpetrator. It'll take forward-thinking investigators, state-of-the-art science and brave survivors to put this man behind bars.

In 1972 Washington, 20-year-old Jody Loomis is discovered covered in blood by the roadside. She is brought to the hospital where she passes away from a bullet wound. It'll take over forty years for science to reveal her killer.

In Willoughby, Ohio, Mark Madger comes home to find his wife Nadine lying in a pool of her own blood, stabbed to death. Four decades later, cutting-edge DNA science provides answers the Madger family have been waiting a lifetime for.

In 1985, a young woman is awoken by an intruder who sexually assaults her at gunpoint in her own condo. The determination of the survivor will lead her on a decades-long journey to justice through a revolutionary forensic science technique.

In 1983 in Redford, Michigan, Christina Castiglione's body is discovered in a remote area. Four decades later, a groundbreaking DNA science technique links the crime to a man with a record of sexual deviancy and attempted abduction.

In Georgia in 1972, 9-year-old Debbie Randall vanishes when walking home. 16 days later, her body is discovered. In 2016, a cold case team employs cutting-edge forensic techniques to find this child killer once and for all.