Bloodline Detectives

Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.

TV-14 • Documentary, Crime • Series • 2020 • 6 seasons

Start watching: S1 E1

S1 E1 - Motorway Killer
In March 2003, a lorry driver was found dead behind the wheel in Camberley, England. Police gambled on the revolutionary technique of familial DNA analysis.
Apr 23, 2020
S1 E2 - Unrighteous Act
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.
Apr 30, 2020
S1 E3 - Deadly Desire
On Valentines' Day 2007, police in Southern California were called to a particularly violent murder scene. Advances in forensic genealogy finally solved the case.
May 7, 2020
S1 E4 - Scottsdale Spree Shooting
In 2018, two paralegals were shot dead whilst at work in Scottsdale, Arizona. Four more victims were linked to the killing - who was the serial killer?
May 14, 2020
S1 E5 - Blood Bath
In 1984, a young woman's body was discovered in a lane close to her home in Bath, England. How did police eventually track down the perpetrator of this heinous attack?
May 21, 2020
S1 E6 - Road Trip to Hell
After being reported missing, a young couple's bodies were discovered more than 60 miles apart. Dedicated investigators set out to find their killer.
May 28, 2020
S1 E7 - March Massacre
In 1979, two young boys came home from school to find their mother's dead body in the living room. Investigators set out to track down the killer with no firm leads.
Jun 4, 2020
S1 E8 - Murder in the Snow
After a young woman was found beaten to death in Wisconsin in 1984, the killer evaded detection for decades. However, a revolutionary DNA method later revealed his identity.
Jun 11, 2020 • 1h
S1 E9 - Ice Cold Murder
The murder of a respected teacher brutally attacked in her Pennsylvania home. Her death shocked the community, though it took 27 years for dedicated investigators trace her killer.
Jun 18, 2020
S1 E10 - Llandarcy Serial Killer
In 1973, two schoolgirls were found murdered in the Welsh village of Llandarcy. The killer's identity would remain a mystery until 2002.
Jan 7, 2021 • 45m
S1 E11 - Sheeps Flat Murder Mystery
In 1982, a woman is found shot to death near Lake Tahoe. 37 years later, ground-breaking technology would help identify both the victim and the killer.
Jan 14, 2021 • 45m
S1 E12 - Carnage in Cardiff
In 1988, police discover the mutilated body of Lynette White. 25 years later, a ground-breaking DNA technique would finally lead detectives to the killer.
Jan 21, 2021 • 45m
S1 E13 - The Rockville Horror
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.
Jan 28, 2021 • 45m
S1 E14 - A Life Stolen
69-year-old Evelynne Derricott is found brutally murdered in 2011. After the case goes cold, new DNA technology eventually leads detectives to the truth.
Feb 4, 2021 • 45m
S1 E15 - Walking Nightmare
In 1986, in Kent, a teenage girl is on her way to the shops when she is attacked and sexually assaulted. Decades later, new DNA technology reveals the perpetrator.
Feb 11, 2021 • 45m
S1 E16 - Town Path Predator
In 2001, a young couple were brutally assaulted in Salisbury, Wiltshire. Over a decade later, new DNA technology helped lead investigators to the attacker.
Feb 20, 2021 • 45m
S1 E17 - The Murder of Tangie Sims
In Colorado, in 1996, a young woman's body was found in an alley. After the case goes cold, advancements in genetic technology lead police to the killer.
Feb 27, 2021 • 45m
S1 E18 - The Williamsburg Rapist
In 2001, a student is attacked in Williamsburg, Virginia and months later the attacker strikes again. Finally, new DNA technology reveals the perpetrator.
Mar 3, 2021 • 45m
S1 E19 - The Murder of Helene Pruszynski
In 1980, a young woman disappears and her body is discovered shortly after. Almost 40 years later, new DNA technology reveals the attacker.
Mar 13, 2021 • 45m
S1 E20 - The Clearfield Rapist
A series of brutal and terrifying sexual assaults occur across northern Utah and Wyoming. 17 years later, new DNA technology reveals the perpetrator.
Mar 20, 2021 • 45m

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