Bloodline Detectives

Bloodline Detectives focuses on familial DNA investigation, a search technique which uses genetic material from relatives to track down a suspect to solve violent crimes. Each episode shows detectives from all over the world solving cold cases by using the DNA of family members and how that additional DNA information is revolutionising genetic profiling to solve criminal cases.

• Ep 1

  1.Motorway Killer

  23-04-2020

  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.

• Ep 2

  2.Unrighteous Act

  30-04-2020

  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.

• Ep 3

  3.Deadly Desire

  07-05-2020

  On Valentines' Day 2007, police in Southern California were called to a particularly violent murder scene. Advances in forensic genealogy finally solved the case.

• Ep 4

  4.Scottsdale Spree Shooting

  14-05-2020

  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?

• Ep 5

  5.Blood Bath

  21-05-2020

  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?

• Ep 6

  6.Road Trip to Hell

  28-05-2020

  After being reported missing, a young couple's bodies were discovered more than 60 miles apart. Dedicated investigators set out to find their killer.

• Ep 7

  7.March Massacre

  04-06-2020

  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.

• Ep 8

  8.Murder in the Snow

  11-06-202060m

  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.

• Ep 9

  9.Ice Cold Murder

  18-06-2020

  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.

• Ep 10

  10.Llandarcy Serial Killer

  07-01-202145m

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

• Ep 11

  11.Sheeps Flat Murder Mystery

  14-01-202145m

  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.

• Ep 12

  12.Carnage in Cardiff

  21-01-202145m

  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.

• Ep 13

  13.The Rockville Horror

  28-01-202145m

  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.

• Ep 14

  14.A Life Stolen

  04-02-202145m

  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.

• Ep 15

  15.Walking Nightmare

  11-02-202145m

  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.

• Ep 16

  16.Town Path Predator

  20-02-202145m

  In 2001, a young couple were brutally assaulted in Salisbury, Wiltshire. Over a decade later, new DNA technology helped lead investigators to the attacker.

• Ep 17

  17.The Murder of Tangie Sims

  27-02-202145m

  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.

• Ep 18

  18.The Williamsburg Rapist

  03-03-202145m

  In 2001, a student is attacked in Williamsburg, Virginia and months later the attacker strikes again. Finally, new DNA technology reveals the perpetrator.

• Ep 19

  19.The Murder of Helene Pruszynski

  13-03-202145m

  In 1980, a young woman disappears and her body is discovered shortly after. Almost 40 years later, new DNA technology reveals the attacker.

• Ep 20

  20.The Clearfield Rapist

  20-03-202145m

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