E20
20. 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.
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TV series
Bloodline Detectives
Latest episode
S6 E20 · A Stranger in Her Home
About Bloodline Detectives
Bloodline Detectives is a crime and documentary TV series that premiered on discovery+ on April 23, 2020. It has 6 seasons and 100 episodes so far and is still airing new episodes. The latest episode, Season 6 Episode 20 "A Stranger in Her Home", aired on May 12, 2026.
Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.
- Crime
- Documentary
Last updated
Episodes
100 episodes · 6 seasons
Season 1
2020 · 20 episodes · Last episode: 5 years ago
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.
Bloodline Detectives Season 1 release dates →- E19
19. 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.
- E18
18. 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.
- E17
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, advancements in genetic technology lead police to the killer.
- E16
16. 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.
- E15
15. 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.
- E14
14. 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.
- E13
13. 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.
- E12
12. 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.
- E11
11. 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.
- E10
10. 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.
- E9
9. Ice Cold Murder
FinaleThe 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.
- E8
8. 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.
- E7
7. 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.
- E6
6. 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.
- E5
5. 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?
- E4
4. 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?
- E3
3. 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.
- E2
2. 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.
- E1
1. 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.
Season 2
2021 · 20 episodes · Last episode: 4 years ago
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.
Bloodline Detectives Season 2 release dates →- E20
20. Remembering Stevie
FinaleIn 1963, the body of a toddler is discovered in the Keene Creek reservoir in Ashland County, Oregon, wrapped in a bundle of bedding. The child is determined to a white male, possibly having Down Syndrome. Despite the limitations of forensic science at the time, investigators are determined to find out who the so-called "Boy in the Bundle" is, and how he ended up in the water. After nearly six decades, developments in technology provide a major break in the case.
- E19
19. Chilling Notes From a Killer
In 1988, Janet Tinsley reports her 8-year-old daughter April missing after she fails to return home. Three days later, a man out jogging makes a gruesome discovery in a nearby ditch.
- E18
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. She had been raped and strangled to death. Genetic genealogy is called upon to help solve this violent murder.
- E17
17. Justice for Leslie
In 1976, a young woman is found dead at a military base in Orange County, California. Using forensic genealogy, experts break open the 40-year-old cold case.
- E16
16. A Family Torn Apart
In 1998, a woman and her daughter are found brutally murdered, both shot in the head several times. The case goes cold for over a decade until genetic genealogy uncovers the perpetrator.
- E15
15. The Rapid City Rapist
In 1968, 60-year-old Gwen Miller is brutally raped and murdered inside her own home. A devastating flood then halts the police investigation until ground-breaking science offers some new hope.
- E14
14. The Hunt for Precious Jane Doe
In 1977, the body of a young woman is discovered by blackberry pickers in Everett, Washington. The body is covered in flies and maggots. Police officers fail to identify the victim until revolutionary technology breaks open the case.
- E13
13. Gunpoint Horror
In Alexandria, Virginia in 2016 a young female lifeguard is raped while working at a local pool. Police learn of a similar incident in Fairfax, Virginia 2 years earlier. It takes ground-breaking genealogy tools to find the perpetrator.
- E12
12. The Knifepoint Rapist
In 1995, a masked man commits a series of sexual assaults at knifepoint. It takes more than 20 years for this serial rapist to be identified and then brought to justice.
- E11
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 the case until new DNA technology exposes the killer.
- E10
10. Mother Mojave
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 and identify the murderer of 4 other victims.
- E9
9. The Montana Creek Murders
On 24th December 1984, a body is discovered in a shallow grave. When another dead body is discovered police fear a serial killer is at work. The victims remained unidentified for decades before a new DNA technology gave them justice.
- E8
8. Episode 8
- E7
7. The Murder of Siobhain
- E6
6. The Alameda Attacker
In 1997, two women are sexually assaulted in separate attacks. Forensic evidence suggests the crimes are linked, but it takes over two decades to find the perpetrator.
- E5
5. Left for Dead in Logan County
After decades of searching, Ohio detectives use ground-breaking technology to hunt down the man who abducted and sexually assaulted a 19-year-old woman.
- E4
4. Sinful Act In St George
A small community in Utah is shocked when an elderly woman is brutally attacked in her own home. Detectives use innovative techniques to solve the case.
- E3
3. The Montana Murders
When two teens are found dead in Montana, detectives suspect an infamous gangster might be responsible. But it will take 65 years to find the true culprit.
- E2
2. Sacrilege in Sacramento
In 1992, a woman is sexually assaulted in Sacramento, California by a man wearing a ski mask. This sexual predator continues to commit heinous crimes until new evidence exposes his identity.
- E1
1. Body in the Stairwell
In 1999, hospital worker Jennifer Watkins was sexually assaulted and murdered. Two decades later, revolutionary DNA testing helps to solve this cold case.
Season3
2022 · 20 episodes · Last episode: 3 years ago
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.
Bloodline Detectives Season3 release dates →- E20
20. The Telephone Cord Killer
October 9 1980, Santee, San Diego. The neighbours of 20 year old college student Michelle Wyatt hear screams coming from her condo but fail to investigate.
- E19
19. The Mint Box Murder
March 6 1959. 9-year-old Candy Rogers leaves home to sell girl scout mints in Spokane Washington, she never returns.
- E18
18. Delta Dawn Doe
December 5 1982. Deputies from Jackson County Sheriff’s Department discover the body of a female toddler along the Escatawpa River in Mississippi.
- E17
17. The McLeary Rapist
A 17-year old girl arrives home in McCleary Washington and honks her car-horn. Her dad finds her distraught with duct tape around her mouth and her feet zip tied together.
- E16
16. Dancing with Death
Colorado Springs, Colorado, St. Patrick’s Day 1987. The naked body of Darlene Krashoc is discovered by two patrol officers at 5.20am behind a restaurant.
- E15
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 city street.
- E14
14. The Schoolbag in the Road
Las Vegas, Nevada, June 1 1989. Stephanie Isaacson sets off on her morning walk to school; she never makes it.
- E13
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.
- E12
12. Murder by the Base
Sanford, Florida, 1984. The bruised and bloodied body of 25-year-old naval recruit Pamela Cahanes is found in an abandoned lot near the Naval Training Center.
- E11
11. The Mystery of the Parks
Tacoma, Washington State, 1986. 12-year-old Michella Welch goes missing in Puget Park.
- E10
10. Valentine's Day Murder
Florida Keys, 1991. A young woman is last seen alive hitchhiking on Valentine’s Day. The next day her body is discovered along a deserted road
- E9
9. The Slaying of Sylvia Quayle
Arapahoe County, Colorado, 1983. The body of Sylvia Quayle is discovered by her distraught father in her Cherry Hills home.
- E8
8. Little Miss Nobody
The body of a little girl is found in the Arizona desert. Detectives are unable to identify her so the local community lays her to rest with the name “Little Miss Nobody”.
- E7
7. Christmas Tree Lady
In 1996, the body of a woman in her 60s is found in a cemetery in Annandale, Virginia (US), surrounded by empty alcohol and pill bottles, with a plastic bag fastened over her head.
- E6
6. The Mystery of the Headphones
December 30th 1983. 22-year-old Diana Hanson fails to return home from jogging in Las Vegas.
- E5
5. The Coat Hanger Killer
On the morning of September 4th, 1981, mom of two, Linda Slaten was found murdered in her bedroom in her Lakeland Florida apartment.
- E4
4. Last Seen At Dairy Queen
High school student Kim Bryant is last seen outside a Dairy Queen restaurant. Three weeks later, her body is discovered by three teenage boys hiking on the outskirts of town.
- E3
3. Carla's Last Valentines
Fort Worth Texas 1974. 17-year old Carla Walker is kissing her boyfriend Rodney in his car when suddenly the door is ripped open by an unknown assailant.
- E2
2. The Greeley Rapist
2001, Greeley, Colorado, a 7-year-old girl is walking to school with her 8-year-old brother when an unknown assailant snatches her off the street and bundles her into his car.
- E1
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.
Season 4
2023 · 20 episodes · Last episode: 2 years ago
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.
Bloodline Detectives Season 4 release dates →- E20
20. Murder in Marietta
The 1972 rape and murder of 9-year-old Debbie Lynn Randall is solved thanks to new science 50 years later.
- E19
19. The Sadistic Killer
Investigative genetic genealogy unmasks the sexual deviant who raped and killed Christina Castiglione in 1983
- E18
18. Carrie's Courage
A woman who was sexually assaulted at gunpoint in the 1980s contacts a genetic genealogist to solve her case.
- E17
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, stabbed to death. Four decades later, cutting-edge DNA science provides answers the Madger family have been waiting a lifetime for.
- E16
16. Justice Delayed
DNA science unveils a predator who sexually assaulted a 20-year-old before shooting her in Washington in 1972.
- E15
15. The Mississippi Rapist
In 1990 Mississippi, a woman is kidnapped at knife-point. Police are unable to identify the perpetrator. It'll take forward-thinking investigators, state-of-the-art science and brave survivors to put this man behind bars.
- E14
14. Double Homicide in the OC
A young woman is found beaten, raped and strangled in Garden Grove, California in 1987. Two years pass until a woman in a neighboring jurisdiction meets the same fate. It will take years before forensics identify this serial killer.
- E13
13. The Three Rivers Killer
Investigative genetic genealogy reveals the killer of a young mother murdered in her own home 34 years prior.
- E12
12. Mommy Has Been Murdered
Investigative genetic genealogy is used to resolve the 1988 murder of a mother killed in front of her toddler
- E11
11. The Phoenix Canal Killer
Cutting-edge DNA science finally names the Phoenix Canal Killer who terrorized the city in the early 90s.
- E10
10. Stabbing in Sacramento
40 years after the sexual assault and murder of 20-year-old Robin Brooks in Sacramento, California, determined cold case detectives collaborate with scientists using revolutionary forensic techniques to put her killer behind bars.
- E9
9. The South Lake Tahoe Strangler
Two unsolved murders from the late 1970s near Tahoe, Calif., stump investigators for decades.
- E8
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 child predator is hiding in plain sight. Over 50 years later, the truth is finally revealed.
- E7
7. The Huntington Beach Body
In 1968, the remains of an unidentified woman are discovered; detectives work for nearly half a century to identify the Jane Doe and the murderer who evaded law enforcement for 50 years.
- E6
6. Murder by I-59
Dade County police in Georgia work to uncover the identity of a Jane Doe and locate the perpetrator responsible for her murder.
- E5
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 killer will be identified; after 52 years, genetic genealogy provides the truth.
- E4
4. The Mammoth Lakes Murder
In 2003, the skeletal remains of a young woman are found.
- E3
3. Murder on Elm Street
In July 1987, Donna Hyatt's daughter finds her mother brutally murdered at home in Carlsbad, New Mexico. Donna Sue Hyatt's murder is unsolved for decades until modern forensic science catches up.
- E2
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 Kentucky. Fast forward to 2022, cutting-edge DNA science is employed to finally name her killer.
- E1
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, but still no suspect. That is until new advances in familial DNA is compared 27 years after the first known attack in 1991.
Season 5
2024 · 20 episodes · Last episode: 1 year ago
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.
Bloodline Detectives Season 5 release dates →- E20
20. Episode 20
- E19
19. Episode 19
- E18
18. Episode 18
- E17
17. Episode 17
- E16
16. Episode 16
- E15
15. Episode 15
- E14
14. Episode 14
- E13
13. Episode 13
- E12
12. Terror in Texas
Susan Eads is found murdered in Texas in 1983. Decades later, can modern forensics finally find the perpetrator?
- E11
11. Cathy Sposito
Will a new forensic science tool find the killer of Cathy Sposito, murdered on an Arizona hiking trail in 1987?
- E10
10. The Schoolteacher Murder
In 1995 in Beaumont, Texas, the parents of Catherine Edwards find her body in her bathroom. The killer evades justice, that is, until forensic science catches up with him.
- E9
9. The Imposter Rapist
In Chandler, Arizona in 1991, an intruder viciously sexually assaults a woman in her own home. The case goes unsolved for decades until revolutionary science connects the dots.
- E8
8. Justice for Krista
In 1989, 20-year-old Krista Martin’s life is tragically cut short when an intruder interrupts her dinner, leading to an investigation spanning four decades.
- E7
7. The Runaway Murder
In 1978, the body of 16-year-old Krisann Baxter is found in Washington. Investigators try to find Krisann's killer, but don't find any answers.
- E6
6. Terror in Garden Grove
In 1976, 19-year-old Janet Stallcup goes missing in Garden Grove, California while on her way to a party. Eight days later, her body is found in her car. The case runs cold until 2020 when genetic genealogy solves her murder.
- E5
5. Strangled in the Sand
The 1994 murder of Clare Holman in Borrego Springs, California went unsolved for decades. Determined investigators got their breakthrough when new advancements in DNA technology have arrived.
- E4
4. The McClintock Park Murders
Wisconsin 1976. 25-year-old David Schuldes and 24-year-old Ellen Matheys are murdered in a park. The case goes cold until 2015 when new DNA science is found.
- E3
3. The Book Store Murder
In 2010, a great-grandma Sherry Black is found murdered in her own bookstore in South Salt Lake, Utah. It took 11 years for police to find evidence to charge and convict her killer.
- E2
2. Evil Angel
In 2015, a woman is viciously assaulted while running in an Albuquerque, New Mexico park. Investigators unable the find the perpetrator, until they learn about a new forensic technic that could break this case.
- E1
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 near Grand Rapids, Michigan. Detectives quickly identify the victim as Sharon Kay Hammack, but her killer identity remains unknown for years
Season 6
2025 · 20 episodes · Last episode: 6 months ago
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.
Bloodline Detectives Season 6 release dates →- E20
20. A Stranger in Her Home
Genetic genealogy links a serial offender to the 1990 murder of Genevieve Zitricki.
- E19
19. A Good Deed Punished
Teresa Solecki is murdered in 1984 in California. After more than 30 years, DNA technology reveals the killer.
- E18
18. Murder in Montana
Danielle Houchins is found murdered. DNA technology finally unmasks the killer in the 2010s.
- E17
17. The Phone Call Rapist
DNA and genealogy reveal the identity of a man responsible for home invasions from 1982 to 1997.
- E16
16. The Stanford Murders
DNA technology helps solve the murders of two 21-year-old women in North Carolina in the 1970s.
- E15
15. No Safe Haven
In 2013, a newborn baby know as "Baby Precious" is found dead; DNA technology tracks down the child's parents.
- E14
14. Bloodshed
Mark Dribin vanishes in 1999. After over 20 years, DNA technology finally unmasks his killer and dark secrets.
- E13
13. The Hair That Called His Bluff
DNA and genealogy solve the murder of schoolgirl Rashell Ward after over 40 years.
- E12
12. The Angel of Seaside
DNA and genealogy identify soldier Robert Lanoue as the murderer of 5-year-old Anne Pham.
- E11
11. Adopted by Death
A 65-year-old mystery is solved when DNA testing identifies the remains of 7-year-old Chester Alfred Breiney.
- E10
10. Stolen Youth, Stolen Lives
In 1976, 16-year-old Pamela Maurer's body is found along College Road in Lisle, Illinois.
- E9
9. A Confession in Cold Blood
In 1974, 25-year-old Mary K. Schlais is murdered while hitchhiking from Minneapolis to Madison, Wisconsin.
- E8
8. The Last Valentine
In 1985, Terri McAdams is murdered in her fiance's apartment; in 2023, DNA and genealogy identify the killer.
- E7
7. Uncovered Truths
In October 2003, the San Diego County community was shaken by a tragic discovery: the dismembered legs of a woman were found in a dumpster.
- E6
6. Murder Between Two Floors
Found murdered in a Seattle garage in July 1967, Susan Galvin remained without justice until 2018, when DNA and genetic genealogy identified her killer, Frank Wypych.
- E5
5. The Suspect List
DNA and genealogy reveal serial killer Jerry McFadden murdered Anna Hlavka in a 1979 Portland case.
- E4
4. A Forensic Gamechanger
In 1991, 16-year-old Sarah Yarborough was murdered outside her school. Eyewitnesses saw a man - but it took nearly 30 years and forensic genealogy to find him.
- E3
3. Murder on Highway 243
Esther Gonzalez was killed in 1979 while walking in Riverside. Randy Williamson, cleared by polygraph, lived freely until 2014. In 2023, forensic genealogy closed the cold case.
- E2
2. Jane Doe by the Road
Found shot near Highway 67 in 1986, Maria Pilar Del Gadillo Carrillo remained unidentified until 2024, when authorities used genetic genealogy and reopened her case.
- E1
1. Murder in the Median
In 2024, Pamela Wittman, a 25-year-old from Indiana, was identified, solving the 1980 Daytona Beach cold case linked to a serial killer.
Cast & crew
-
Joseph Palmer
Coroner
-
Aidan O'Sullivan
Detective
-
Mark Connolly
Detective
-
Bernadette Carty
CeCe
-
CeCe Moore
Self - Chief Genetic Geneologist
-
Aaron Adamson
Fisherman (uncredited)
-
Aran O'Brien
80s Detective
-
Stephanie Karam
Detective
-
Patrick John Wall
Gary Hartman
-
Colin Malone
Detective
-
Brian Roche
Gary Hamlin (credit only)
-
Kenneth Barry
Man on Phone (uncredited)
-
Derek Carroll
Self-Detective
Bloodline Detectives FAQ
When is the next episode of Bloodline Detectives?
A date for the next episode of Bloodline Detectives hasn't been announced yet. Follow Bloodline Detectives in the Streambay app and you'll be notified as soon as a new episode airs.
When did the latest episode of Bloodline Detectives come out?
The most recent episode of Bloodline Detectives, Season 6 Episode 20 "A Stranger in Her Home", aired on May 12, 2026.
How many seasons of Bloodline Detectives are there?
Bloodline Detectives has 6 seasons with 100 episodes in total.
When did Bloodline Detectives first air?
Bloodline Detectives first aired on discovery+ on April 23, 2020.
How do I get notified when new episodes of Bloodline Detectives are released?
Download the Streambay app, follow Bloodline Detectives, and you'll get a push notification the moment each new episode is released.
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