Bloodline Detectives

The story of four innocent victims and how their attacker became another successful target of the Bloodline Detectives.

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

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

Following the decadeslong investigation into the murder of Helene Pruszynski.

A 69-year-old woman is found brutally murdered in 2011; after the case goes cold, new DNA technology eventually leads detectives to the truth.

The exhaustive investigation into the murder of Tangie Sims; how genetic genealogy gave investigators the break they'd been waiting for.

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

In 1973, two young girls are found murdered in the Welsh village of Llandarcy; the killer's identity remains a mystery until 2002.

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

In 1994, 42-year-old Le Bich-Thuy is found dead next to her home; decades later, DNA and genealogy technology allow detectives to track down the killer.

The police investigation into the Washoe County murder.

After being reported missing, a young couple's bodies are discovered more than sixty miles apart; how the dedicated investigators eventually find the killer.

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

A lorry driver is found dead behind the wheel in Camberley, England; police use a revolutionary technique of familial DNA analysis.

In 1976 a woman was left for dead in her home in southern California; despite a major manhunt, the violent killer avoided detection for over four decades.

In 1979 two young boys find their mother's dead body in the living room; how the investigators track down the killer with no solid leads.

A beloved local teacher is brutally attacked in her Pennsylvania home; after 27 years, dedicated investigators trace her killer.

In 2018, two paralegals are shot dead while at work in Scottsdale, Ariz; four more victims are linked to the killing.

A young woman is found beaten to death in Wisconsin in 1984; killer evades detection for decades until a revolutionary DNA method reveals his identity.

Police in Southern California were called to a particularly violent murder scene; advances in forensic genealogy finally solved the case.