Season 4
20 episodes · Sep 30, 2023
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.
Season Videos
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- S4E1
The Norcal Rapist
Sep 30, 202345mA 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.
- S4E2
Horror by the Roadside
Oct 7, 202345mIn 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.
- S4E3
Murder on Elm Street
Oct 14, 202345mIn 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.
- S4E4
The Mammoth Lakes Murder
Oct 21, 202345mIn 2003, the skeletal remains of a young woman are found.
- S4E5
The Court Reporter Murder
Oct 28, 202345mWhen 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.
- S4E6
Murder by I-59
Nov 4, 202345mDade County police in Georgia work to uncover the identity of a Jane Doe and locate the perpetrator responsible for her murder.
- S4E7
The Huntington Beach Body
Nov 11, 202345mIn 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.
- S4E8
The Murder of Little Marise
Nov 18, 202345mIn 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.
- S4E9
The South Lake Tahoe Strangler
Nov 25, 202345mTwo unsolved murders from the late 1970s near Tahoe, Calif., stump investigators for decades.
- S4E10
Stabbing in Sacramento
Dec 16, 202345m40 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.
- S4E11
The Phoenix Canal Killer
Apr 1, 202445mCutting-edge DNA science finally names the Phoenix Canal Killer who terrorized the city in the early 90s.
- S4E12
Mommy Has Been Murdered
Apr 1, 202445mInvestigative genetic genealogy is used to resolve the 1988 murder of a mother killed in front of her toddler
- S4E13
The Three Rivers Killer
Apr 1, 202445mInvestigative genetic genealogy reveals the killer of a young mother murdered in her own home 34 years prior.
- S4E14
Double Homicide in the OC
Apr 1, 202445mA 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.
- S4E15
The Mississippi Rapist
Apr 1, 202445mIn 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.
- S4E16
Justice Delayed
Apr 1, 202445mDNA science unveils a predator who sexually assaulted a 20-year-old before shooting her in Washington in 1972.
- S4E17
Murder in Apartment 101
Apr 1, 202445mIn 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.
- S4E18
Carrie's Courage
Apr 1, 202445mA woman who was sexually assaulted at gunpoint in the 1980s contacts a genetic genealogist to solve her case.
- S4E19
The Sadistic Killer
Apr 1, 202445mInvestigative genetic genealogy unmasks the sexual deviant who raped and killed Christina Castiglione in 1983
- S4E20
Murder in Marietta
Apr 1, 202445mThe 1972 rape and murder of 9-year-old Debbie Lynn Randall is solved thanks to new science 50 years later.