Bloodline Detectives

Police in Southern California were called to a particularly violent murder scene.

Decades after a young woman's murder, her killer is identified using a revolutionary DNA method.

In 2018, two paralegals are shot dead while at work in Scottsdale, Arizona.

A beloved local teacher is brutally attacked in her Pennsylvania home; police trace her killer.

In 1979, two young boys find their mother's dead body in the living room; police find the killer.

A woman is murdered in her home in southern California; the killer avoids detection for decades.

A lorry driver is found dead behind the wheel in England; police use familial DNA analysis.

A woman's body is discovered close to her home in Bath, England; police track down the perpetrator.

After being reported missing, a young couple's bodies are discovered more than sixty miles apart.

The police investigation into the Washoe County murder.

In 1994, Le Bich-Thuy is found dead; DNA and technology allow detectives to track the killer.

A decades-long police investigation includes one of the worst miscarriages of justice in U.K. history.

In 1973, two young girls are found murdered in the Welsh village of Llandarcy.

With the help of familial DNA, detectives are able to track down and capture a serial rapist.

The investigation into the murder of Tangie Sims; how genetic genealogy helped solve the case.

A 69-year-old woman is found murdered in 2011; years later, the case is finally resolved.

Following the decades-long investigation into the murder of Helene Pruszynski.

How an extensive investigation and revolutionary DNA science revealed an attacker's identity.

How the revolutionary new science of familial DNA helped catch a rapist.

The science of familial DNA is used to identify a rapist who eluded justice for years.