Bloodline Detectives

3 seasons available

Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.
The Lifeguard Rapist
S3 E3

A vicious rapist attacks two female lifeguards; genetic genealogy leads to a suspect.

The Rapid City Rapist
S3 E4

A 60-year-old pharmacist is strangled and sexually assaulted in her home; almost 50 years later her killer is tracked down using genetic genealogy.

The Hunt for Precious Jane Doe
S3 E5

The body of a young girl is discovered strangled and shot; genetic genealogy is used to identify the victim and killer.

Body in the Staircase
S2 E1

In 1999, hospital worker Jennifer Watkins is sexually assaulted and murdered; 20 years later, revolutionary DNA testing helps to solve the cold case.

Sacrilege in Sacramento
S2 E2

In Sacramento, Calif., three woman are brutally assaulted by the same man; investigators use genealogy to track down the suspect.

The Montana Murders
S2 E3

A young couple is murdered in Montana in 1956; in 2019, investigators use voluntary genealogical databases to catch the killer.

The Night Visitor
S2 E4

In 2018, a 79-year-old woman in Utah is sexually assaulted after a man breaks into her home; genetic genealogy immediately identifies the rapist.

The Abductor
S2 E5

In 1993, a 19-year-old woman is kidnapped and raped; a private forensic genealogy company is able to track down the suspect.

Attacks in Alameda
S2 E6

In 1997, a woman is attacked on her route home; a suspect is arrested over 20 years later with the help of a genetic genealogical search.

The Murder of Siobhan McGuinness
S2 E7

In 1974, a 5-year-old girl disappears while walking to her friend's house; after 46 years, detectives are able to put the case to rest using modern DNA technology.

Cold Case Twist
S2 E8

When a woman is found dead in her home, detectives are left with more questions than answers.

Mother Mojave
S2 E9

When a woman takes a genealogy test to learn what happened to her estranged mother, she is shocked to learn that her DNA has helped law enforcement identify a Jane Doe that remained a mystery for over 40 years.

San Bernardino Bodies
S2 E10

When a woman takes a genealogy test to learn what happened to her estranged mother, she is shocked to learn that her DNA has helped law enforcement identify a Jane Doe that remained a mystery for over 40 years.

Mary London
S2 E11

In 1981 a young woman is found murdered on the side of the road; the identity of her killer remains a mystery for decades until law enforcement can utilize genetic genealogy to crack the case.

The Knifepoint Rapist
S2 E12

A young woman out jogging is attacked and viciously raped at knifepoint; the perpetrator continues his reign of terror by raping another five times over the next nine years.

A Family Torn Apart
S2 E16

In 1998, a 12-year-old girl and a 38-year-old woman are found raped and murdered.

Justice for Leslie
S2 E17

A woman storms out of a restaurant after an argument with her husband and is never seen alive again.

Cuyahoga Falls Mystery
S2 E18

In 1987, the body of a 17-year-old girl is found face down on a rural road; she had been raped and strangled.

Chilling Notes from a Killer
S2 E19

In 1988, an 8-year-old girl goes missing; three days later, the girl's body is found in a ditch.

Remembering Stevie
S2 E20

In 1963, a man fishing finds the body of a toddler who had been wrapped in blankets and weighed down by iron molds; it takes 57 years to learn the child's name.

Motorway Killer
S1 E1

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

Unrighteous Act
S1 E2

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.

Deadly Desire
S1 E3

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

Scottsdale Spree Shooting
S1 E4

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

Blood Bath
S1 E5

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

Road Trip to Hell
S1 E6

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

March Massacre
S1 E7

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.

Murder in the Snow
S1 E8

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.

Ice Cold Murder
S1 E9

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

Llandarcy Serial Killer
S1 E10

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

Sheeps Flat Murder Mystery
S1 E11

In 1982, a woman is found shot to death near Lake Tahoe; 37 years later, a ground-breaking technology helps identify both the victim and the killer.

Carnage in Cardiff
S1 E12

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

Rockville Horror
S1 E13

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.

A Life Stolen
S1 E14

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.

Town Path Predator
S1 E16

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

The Murder of Tangie Sims
S1 E17

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

The Williamsburg Rapist
S1 E18

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

The Murder of Helene Pruszynski
S1 E19

Following the decadeslong investigation into the murder of Helene Pruszynski.

The Clearfield Rapist
S1 E20

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

Walking Nightmare
S1 E21

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