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

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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.
Episode 1: Motorway Killer
In March 2003, a lorry driver was found dead behind the wheel in Camberley, England. Police gambled...
Episode 2: Unrighteous Act
In 1976, a woman was left for dead in her home in southern California. Despite a major manhunt, the...
Episode 3: Deadly Desire
On Valentines' Day 2007, police in Southern California were called to a particularly violent murder...
Episode 4: Scottsdale Spree Shooting
In 2018, two paralegals were shot dead whilst at work in Scottsdale, Arizona. Four more victims were...
Episode 5: Blood Bath
In 1984, a young woman's body was discovered in a lane close to her home in Bath, England. How did p...
Episode 6: Road Trip to Hell
After being reported missing, a young couple's bodies were discovered more than 60 miles apart. Dedi...
Episode 7: March Massacre
In 1979, two young boys came home from school to find their mother's dead body in the living room. I...
Episode 8: Murder in the Snow
After a young woman was found beaten to death in Wisconsin in 1984, the killer evaded detection for...
Episode 9: Ice Cold Murder
The murder of a respected teacher brutally attacked in her Pennsylvania home. Her death shocked the...
Episode 10: Llandarcy Serial Killer
In 1973, two schoolgirls were found murdered in the Welsh village of Llandarcy. The killer's identit...
Episode 11: Sheeps Flat Murder Mystery
In 1982, a woman is found shot to death near Lake Tahoe. 37 years later, ground-breaking technology...
Episode 12: Carnage in Cardiff
In 1988, police discover the mutilated body of Lynette White. 25 years later, a ground-breaking DNA...
Episode 13: The Rockville Horror
In 1994, 42-year-old Le Bich-Thuy is found dead next to her home. Decades later, DNA and genealogy t...
Episode 14: A Life Stolen
69-year-old Evelynne Derricott is found brutally murdered in 2011. After the case goes cold, new DNA...
Episode 15: Walking Nightmare
In 1986, in Kent, a teenage girl is on her way to the shops when she is attacked and sexually assaul...
Episode 16: Town Path Predator
In 2001, a young couple were brutally assaulted in Salisbury, Wiltshire. Over a decade later, new DN...
Episode 17: The Murder of Tangie Sims
In Colorado, in 1996, a young woman's body was found in an alley. After the case goes cold, advancem...
Episode 18: The Williamsburg Rapist
In 2001, a student is attacked in Williamsburg, Virginia and months later the attacker strikes again...
Episode 19: The Murder of Helene Pruszynski
In 1980, a young woman disappears and her body is discovered shortly after. Almost 40 years later, n...
Episode 20: The Clearfield Rapist
A series of brutal and terrifying sexual assaults occur across northern Utah and Wyoming. 17 years l...
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.
Episode 1: Body in the Stairwell
In 1999, hospital worker Jennifer Watkins was sexually assaulted and murdered. Two decades later, re...
Episode 2: Sacrilege in Sacramento
In 1992, a woman is sexually assaulted in Sacramento, California by a man wearing a ski mask. This s...
Episode 3: The Montana Murders
When two teens are found dead in Montana, detectives suspect an infamous gangster might be responsib...
Episode 4: Sinful Act In St George
A small community in Utah is shocked when an elderly woman is brutally attacked in her own home. Det...
Episode 5: Left for Dead in Logan County
After decades of searching, Ohio detectives use ground-breaking technology to hunt down the man who...
Episode 6: The Alameda Attacker
In 1997, two women are sexually assaulted in separate attacks. Forensic evidence suggests the crimes...
Episode 7: The Murder of Siobhain
Episode 8: Episode 8
Episode 9: The Montana Creek Murders
On 24th December 1984, a body is discovered in a shallow grave. When another dead body is discovered...
Episode 10: Mother Mojave
When a woman takes a genealogy test to learn what happened to her estranged mother, she is shocked t...
Episode 11: The Mystery Murder of Mary London
In 1981, a female high school student is found dead on the side of a road. Police work tirelessly on...
Episode 12: The Knifepoint Rapist
In 1995, a masked man commits a series of sexual assaults at knifepoint. It takes more than 20 years...
Episode 13: Gunpoint Horror
In Alexandria, Virginia in 2016 a young female lifeguard is raped while working at a local pool. Pol...
Episode 14: The Hunt for Precious Jane Doe
In 1977, the body of a young woman is discovered by blackberry pickers in Everett, Washington. The b...
Episode 15: The Rapid City Rapist
In 1968, 60-year-old Gwen Miller is brutally raped and murdered inside her own home. A devastating f...
Episode 16: A Family Torn Apart
In 1998, a woman and her daughter are found brutally murdered, both shot in the head several times....
Episode 17: Justice for Leslie
In 1976, a young woman is found dead at a military base in Orange County, California. Using forensic...
Episode 18: Cuyahoga Falls Mystery
In December 1987, the nude body of a 17-year-old girl was dumped on the side of a rural road in Ohio...
Episode 19: Chilling Notes From a Killer
In 1988, Janet Tinsley reports her 8-year-old daughter April missing after she fails to return home....
Episode 20: Remembering Stevie
In 1963, the body of a toddler is discovered in the Keene Creek reservoir in Ashland County, Oregon,...
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.
Episode 1: Date Night Murder in Michigan
Niles, Michigan 1987, Terry Wood comes home to find his wife Roxanne lying dead in a pool of blood.
Episode 2: The Greeley Rapist
2001, Greeley, Colorado, a 7-year-old girl is walking to school with her 8-year-old brother when an...
Episode 3: Carla's Last Valentines
Fort Worth Texas 1974. 17-year old Carla Walker is kissing her boyfriend Rodney in his car when sudd...
Episode 4: Last Seen At Dairy Queen
High school student Kim Bryant is last seen outside a Dairy Queen restaurant. Three weeks later, her...
Episode 5: The Coat Hanger Killer
On the morning of September 4th, 1981, mom of two, Linda Slaten was found murdered in her bedroom in...
Episode 6: The Mystery of the Headphones
December 30th 1983. 22-year-old Diana Hanson fails to return home from jogging in Las Vegas.
Episode 7: Christmas Tree Lady
In 1996, the body of a woman in her 60s is found in a cemetery in Annandale, Virginia (US), surround...
Episode 8: Little Miss Nobody
The body of a little girl is found in the Arizona desert. Detectives are unable to identify her so t...
Episode 9: The Slaying of Sylvia Quayle
Arapahoe County, Colorado, 1983. The body of Sylvia Quayle is discovered by her distraught father in...
Episode 10: Valentine's Day Murder
Florida Keys, 1991. A young woman is last seen alive hitchhiking on Valentine’s Day. The next day he...
Episode 11: The Mystery of the Parks
Tacoma, Washington State, 1986. 12-year-old Michella Welch goes missing in Puget Park.
Episode 12: Murder by the Base
Sanford, Florida, 1984. The bruised and bloodied body of 25-year-old naval recruit Pamela Cahanes is...
Episode 13: The Murder of Mary Scott
San Diego 1969. 23-year-old Mary Scott is visited by a friend when she fails to show up for work.
Episode 14: The Schoolbag in the Road
Las Vegas, Nevada, June 1 1989. Stephanie Isaacson sets off on her morning walk to school; she never...
Episode 15: Her Last New Years Eve
Pensacola, Florida, New Year’s Day 1985. The body of Tonya McKinley is found lying on the side of a...
Episode 16: Dancing with Death
Colorado Springs, Colorado, St. Patrick’s Day 1987. The naked body of Darlene Krashoc is discovered...
Episode 17: The McLeary Rapist
A 17-year old girl arrives home in McCleary Washington and honks her car-horn. Her dad finds her dis...
Episode 18: Delta Dawn Doe
December 5 1982. Deputies from Jackson County Sheriff’s Department discover the body of a female tod...
Episode 19: The Mint Box Murder
March 6 1959. 9-year-old Candy Rogers leaves home to sell girl scout mints in Spokane Washington, sh...
Episode 20: The Telephone Cord Killer
October 9 1980, Santee, San Diego. The neighbours of 20 year old college student Michelle Wyatt hear...
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.
Episode 1: The Norcal Rapist
A fugitive has at least 9 victims known to police over the course of 15 years. They had his DNA even...
Episode 2: Horror by the Roadside
In the summer of 1976, the body of 16-year-old Carol Sue Klaber is found in a roadside ditch in Kent...
Episode 3: Murder on Elm Street
In July 1987, Donna Hyatt's daughter finds her mother brutally murdered at home in Carlsbad, New Mex...
Episode 4: The Mammoth Lakes Murder
In 2003, the skeletal remains of a young woman are found.
Episode 5: The Court Reporter Murder
When the body of a young woman is discovered in 1970, her family never loses hope that one day her k...
Episode 6: Murder by I-59
Dade County police in Georgia work to uncover the identity of a Jane Doe and locate the perpetrator...
Episode 7: The Huntington Beach Body
In 1968, the remains of an unidentified woman are discovered; detectives work for nearly half a cent...
Episode 8: The Murder of Little Marise
In 1964, the body of a young girl is discovered in Hazleton, Pa. The community lives in fear that a...
Episode 9: The South Lake Tahoe Strangler
Two unsolved murders from the late 1970s near Tahoe, Calif., stump investigators for decades.
Episode 10: Stabbing in Sacramento
40 years after the sexual assault and murder of 20-year-old Robin Brooks in Sacramento, California,...
Episode 11: The Phoenix Canal Killer
Cutting-edge DNA science finally names the Phoenix Canal Killer who terrorized the city in the early...
Episode 12: Mommy Has Been Murdered
Investigative genetic genealogy is used to resolve the 1988 murder of a mother killed in front of he...
Episode 13: The Three Rivers Killer
Investigative genetic genealogy reveals the killer of a young mother murdered in her own home 34 yea...
Episode 14: Double Homicide in the OC
A young woman is found beaten, raped and strangled in Garden Grove, California in 1987. Two years pa...
Episode 15: The Mississippi Rapist
In 1990 Mississippi, a woman is kidnapped at knife-point. Police are unable to identify the perpetra...
Episode 16: Justice Delayed
DNA science unveils a predator who sexually assaulted a 20-year-old before shooting her in Washingto...
Episode 17: Murder in Apartment 101
In Willoughby, Ohio, Mark Madger comes home to find his wife Nadine lying in a pool of her own blood...
Episode 18: Carrie's Courage
A woman who was sexually assaulted at gunpoint in the 1980s contacts a genetic genealogist to solve...
Episode 19: The Sadistic Killer
Investigative genetic genealogy unmasks the sexual deviant who raped and killed Christina Castiglion...
Episode 20: Murder in Marietta
The 1972 rape and murder of 9-year-old Debbie Lynn Randall is solved thanks to new science 50 years...
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.
Episode 1: The Body in the Blanket
In 1996, two workers report that they found a body rolled up in a blanket on the side of the road ne...
Episode 2: Evil Angel
In 2015, a woman is viciously assaulted while running in an Albuquerque, New Mexico park. Investigat...
Episode 3: The Book Store Murder
In 2010, a great-grandma Sherry Black is found murdered in her own bookstore in South Salt Lake, Uta...
Episode 4: The McClintock Park Murders
Wisconsin 1976. 25-year-old David Schuldes and 24-year-old Ellen Matheys are murdered in a park. The...
Episode 5: Strangled in the Sand
The 1994 murder of Clare Holman in Borrego Springs, California went unsolved for decades. Determined...
Episode 6: Terror in Garden Grove
In 1976, 19-year-old Janet Stallcup goes missing in Garden Grove, California while on her way to a p...
Episode 7: The Runaway Murder
In 1978, the body of 16-year-old Krisann Baxter is found in Washington. Investigators try to find Kr...
Episode 8: Justice for Krista
In 1989, 20-year-old Krista Martin’s life is tragically cut short when an intruder interrupts her di...
Episode 9: The Imposter Rapist
In Chandler, Arizona in 1991, an intruder viciously sexually assaults a woman in her own home. The c...
Episode 10: The Schoolteacher Murder
In 1995 in Beaumont, Texas, the parents of Catherine Edwards find her body in her bathroom. The kill...
Episode 11: Cathy Sposito
Will a new forensic science tool find the killer of Cathy Sposito, murdered on an Arizona hiking tra...
Episode 12: Terror in Texas
Susan Eads is found murdered in Texas in 1983. Decades later, can modern forensics finally find the...
Episode 13: Episode 13
Episode 14: Episode 14
Episode 15: Episode 15
Episode 16: Episode 16
Episode 17: Episode 17
Episode 18: Episode 18
Episode 19: Episode 19
Episode 20: Episode 20
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