Every season of Bloodline Detectives ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Bloodline Detectives!

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.

Motorway Killer

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.

Unrighteous Act

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

Deadly Desire

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?

Scottsdale Spree Shooting

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?

Blood Bath

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

Road Trip to Hell

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.

March Massacre

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.

Murder in the Snow

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.

Ice Cold Murder

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

Llandarcy Serial Killer

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.

Sheeps Flat Murder Mystery

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.

Carnage in Cardiff

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.

The Rockville Horror

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.

A Life Stolen

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.

Walking Nightmare

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

Town Path Predator

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.

The Murder of Tangie Sims

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

The Williamsburg Rapist

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

The Murder of Helene Pruszynski

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

The Clearfield Rapist

In 1999, hospital worker Jennifer Watkins was sexually assaulted and murdered. Two decades later, revolutionary DNA testing helps to solve this cold case.

Body in the Stairwell

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.

Sacrilege in Sacramento

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.

The Montana Murders

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.

Sinful Act In St George

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.

Left for Dead in Logan County

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.

The Alameda Attacker

The Murder of Siobhain

Episode 8

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.

The Montana Creek Murders

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.

Mother Mojave

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.

The Mystery Murder of Mary London

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.

The Knifepoint Rapist

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.

Gunpoint Horror

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.

The Hunt for Precious Jane Doe

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.

The Rapid City Rapist

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.

A Family Torn Apart

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.

Justice for Leslie

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.

Cuyahoga Falls Mystery

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.

Chilling Notes From a Killer

In 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.

Remembering Stevie

Niles, Michigan 1987, Terry Wood comes home to find his wife Roxanne lying dead in a pool of blood.

Date Night Murder in Michigan

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.

The Greeley Rapist

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.

Carla's Last Valentines

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.

Last Seen At Dairy Queen

On the morning of September 4th, 1981, mom of two, Linda Slaten was found murdered in her bedroom in her Lakeland Florida apartment.

The Coat Hanger Killer

December 30th 1983. 22-year-old Diana Hanson fails to return home from jogging in Las Vegas.

The Mystery of the Headphones

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.

Christmas Tree Lady

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”.

Little Miss Nobody

Arapahoe County, Colorado, 1983. The body of Sylvia Quayle is discovered by her distraught father in her Cherry Hills home.

The Slaying of Sylvia Quayle

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

Valentine's Day Murder

Tacoma, Washington State, 1986. 12-year-old Michella Welch goes missing in Puget Park.

The Mystery of the Parks

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.

Murder by the Base

San Diego 1969. 23-year-old Mary Scott is visited by a friend when she fails to show up for work.

The Murder of Mary Scott

Las Vegas, Nevada, June 1 1989. Stephanie Isaacson sets off on her morning walk to school; she never makes it.

The Schoolbag in the Road

Pensacola, Florida, New Year’s Day 1985. The body of Tonya McKinley is found lying on the side of a city street.

Her Last New Years Eve

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.

Dancing with Death

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.

The McLeary Rapist

December 5 1982. Deputies from Jackson County Sheriff’s Department discover the body of a female toddler along the Escatawpa River in Mississippi.

Delta Dawn Doe

March 6 1959. 9-year-old Candy Rogers leaves home to sell girl scout mints in Spokane Washington, she never returns.

The Mint Box Murder

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.

The Telephone Cord Killer

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.

The Norcal Rapist

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.

Horror by the Roadside

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.

Murder on Elm Street

In 2003, the skeletal remains of a young woman are found.

The Mammoth Lakes 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.

The Court Reporter Murder

Dade County police in Georgia work to uncover the identity of a Jane Doe and locate the perpetrator responsible for her murder.

Murder by I-59

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.

The Huntington Beach Body

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.

The Murder of Little Marise

Two unsolved murders from the late 1970s near Tahoe, Calif., stump investigators for decades.

The South Lake Tahoe Strangler

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.

Stabbing in Sacramento

Cutting-edge DNA science finally names the Phoenix Canal Killer who terrorized the city in the early 90s.

The Phoenix Canal Killer

Investigative genetic genealogy is used to resolve the 1988 murder of a mother killed in front of her toddler

Mommy Has Been Murdered

Investigative genetic genealogy reveals the killer of a young mother murdered in her own home 34 years prior.

The Three Rivers Killer

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.

Double Homicide in the OC

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.

The Mississippi Rapist

DNA science unveils a predator who sexually assaulted a 20-year-old before shooting her in Washington in 1972.

Justice Delayed

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.

Murder in Apartment 101

A woman who was sexually assaulted at gunpoint in the 1980s contacts a genetic genealogist to solve her case.

Carrie's Courage

Investigative genetic genealogy unmasks the sexual deviant who raped and killed Christina Castiglione in 1983

The Sadistic Killer

The 1972 rape and murder of 9-year-old Debbie Lynn Randall is solved thanks to new science 50 years later.

Murder in Marietta

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

The Body in the Blanket

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.

Evil Angel

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.

The Book Store Murder

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.

The McClintock Park Murders

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.

Strangled in the Sand

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.

Terror in Garden Grove

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.

The Runaway Murder

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.

Justice for Krista

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.

The Imposter Rapist

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.

The Schoolteacher Murder

Will a new forensic science tool find the killer of Cathy Sposito, murdered on an Arizona hiking trail in 1987?

Cathy Sposito

Susan Eads is found murdered in Texas in 1983. Decades later, can modern forensics finally find the perpetrator?

Terror in Texas

Episode 13

Episode 14

Episode 15

Episode 16

Episode 17

Episode 18

Episode 19

Episode 20

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

The Best Seasons of Bloodline Detectives

The Best Seasons of Bloodline Detectives

Season 1

Season 2

Season 3

Season 4

Season 5