Some crimes stay cold forever. Others? They explode wide open decades later — because of a slip-up, a tip, or new tech. These are the ones that finally got solved — and how. #13 Is the One You’ll Never Forget.
We’ve ranked the most chilling solved cold cases based on how haunting they were… and how jaw-dropping the breakthrough turned out to be. Some took 10 years. Others? More than 40. But everyone ended with justice — and a story you won’t forget.
1. The Golden State Killer Unmasked
For decades, Californians lived in fear of a shadowy predator dubbed the Golden State Killer. Between the 1970s and 1980s, he committed over 50 rapes and 13 murders, taunting victims and authorities alike. Despite composite sketches and survivor accounts, the case went cold for nearly 40 years.
The breakthrough came in 2018, when investigators used genetic genealogy and a DNA sample from a crime scene to identify Joseph James DeAngelo. The former police officer had managed to live a seemingly ordinary life. His arrest marked a milestone in forensic science and brought long-awaited justice to dozens of victims and their families.
Keep going — #6 shocked even the FBI.
2. Christine Jessop’s Killer Identified After 36 Years
In 1984, nine-year-old Christine Jessop vanished in Ontario, Canada. Her body was found months later, but the investigation led to a wrongful conviction. Guy Paul Morin was imprisoned, only to be exonerated by DNA evidence in 1995. Yet the real killer remained a mystery.
That changed in 2020 when modern DNA technology identified Calvin Hoover, a family acquaintance, as the perpetrator. He had died by suicide years earlier, leaving behind a trail of unanswered questions. The long-awaited revelation brought closure to a family haunted by grief and injustice for over three decades.
3. The Murder of Marlene Warren—Solved by a Clown
In 1990, Marlene Warren was shot in the face at her front door by someone dressed as a clown holding balloons and flowers. The killer disappeared, and the bizarre case mystified police and the public for decades. Many suspected her husband’s affair played a role.
In 2017, DNA and re-examined evidence finally pointed to Sheila Keen-Warren, her husband’s former lover. She was arrested 27 years after the crime and later pleaded guilty. The image of a clown-masked killer remained burned into public memory, but justice finally caught up with the woman behind the costume.
4. The Walker Family Massacre Breakthrough
In 1959, the Walker family—Clifford, Christine, and their two young children—were brutally murdered in their Florida home. The case was chilling and seemed unsolvable, leaving a small community in shock. Despite thousands of leads, it turned ice-cold for over 50 years.
In 2012, DNA tests linked the crime to Perry Smith and Richard Hickock, the killers famously portrayed in Truman Capote’s In Cold Blood. The pair had been in Florida around the time of the murders. While the evidence wasn’t enough to close the case officially, it provided the strongest lead ever and likely solved one of Florida’s oldest mysteries.
5. The “Tent Girl” Gets a Name
In 1968, the body of a young woman was discovered wrapped in a canvas tent near Georgetown, Kentucky. Labeled “Tent Girl,” she remained unidentified for over 30 years despite local efforts and national media attention. The mystery haunted investigators and amateur sleuths alike.
Todd Matthews, inspired by his father-in-law’s discovery of the body, spent years comparing missing persons reports with the victim’s profile. In 1998, he found a match: Barbara Ann Hackmann Taylor, a missing mother from Indiana. The identification didn’t solve her murder, but it gave her name back—and proved the power of persistence and internet sleuthing.
6. The 1972 Stanford Murder of Arlis Perry
In October 1974, 19-year-old Arlis Perry was found murdered inside Stanford Memorial Church in California. Her body was arranged in a disturbing pose, sparking fears of a ritualistic killing. Despite multiple suspects and intense media attention, the case quickly went cold.
In 2018, DNA evidence finally identified Stephen Crawford, a former security guard at the church, as the killer. When police arrived to arrest him, Crawford died by suicide. After 44 years, the case that haunted Stanford was solved, offering long-awaited answers to Perry’s family and closing one of the most disturbing campus crimes in American history.
Wait until you see how they cracked #10.
7. The Killing of Carla Walker Finally Solved
In 1974, high school student Carla Walker was abducted from a car parked outside a bowling alley in Fort Worth, Texas. Her body was found days later, and despite a long investigation, no one was ever charged. The case haunted the community for decades.
In 2020, DNA technology led police to Glen McCurley, a man who had been questioned back in the ’70s but never arrested. A discarded soda can linked him to the crime. McCurley eventually confessed, and the conviction brought long-overdue justice to Carla’s family nearly 50 years after her tragic death.
8. The Cold Case of Margaret “Peggy” Beck
Margaret Beck, a 16-year-old Girl Scout counselor, was found raped and strangled in her tent during a 1963 camping trip in Colorado. The crime was shocking and inexplicable, with no clear suspect. Decades passed, and the case faded from public memory.
In 2020, forensic genealogy helped identify James Raymond Taylor as the killer. He had died years earlier, but his relatives’ DNA matched evidence collected at the crime scene. After nearly six decades, Peggy’s family finally learned the truth about what happened that night—and who took her life.
9. The 1980 Murder of Helene Pruszynski
College intern Helene Pruszynski was raped and murdered in Colorado in 1980. The bright 21-year-old had just started a journalism job when she was abducted and left in a field. Despite collecting DNA at the time, there were no hits in the system.
In 2019, investigators used genetic genealogy to identify James Curtis Clanton, who was living under a different name in Florida. He confessed to the murder, bringing closure after 39 years. The case demonstrated the revolutionary power of new forensic techniques in reviving long-cold investigations.
10. The Disappearance and Death of Evelyn Colon
In 1976, a dismembered body was found in a suitcase beneath a Pennsylvania highway overpass. For decades, she was known only as “Beth Doe,” and her true identity remained a mystery. Investigators had little more than a few physical details and the faded suitcase.
In 2021, genetic genealogy identified her as Evelyn Colon, a pregnant teenager from New Jersey who had vanished. Her boyfriend at the time, Luis Sierra, was charged with her murder. After 45 years, Evelyn was no longer a Jane Doe—and her family finally knew the truth about her tragic end.
11. The Killing of Rosie Tapia
In 1995, six-year-old Rosie Tapia was taken from her Salt Lake City apartment and found dead in a nearby canal. Her brutal assault and murder stunned the community, but police had few leads and the case soon went cold, devastating her family.
In 2023, a breakthrough came after years of advocacy and media attention. New DNA analysis pointed to a convicted offender who had lived in the area at the time. While the name hasn’t been officially disclosed, the family received word that charges could finally be brought. After nearly 30 years, the case may finally be nearing justice.
12. The 1976 Murder of Lindy Sue Biechler
Lindy Sue Biechler was stabbed to death in her Pennsylvania apartment in 1975, just months after getting married. Blood was found at the scene, but the case stumped detectives and went unsolved for more than 40 years, leaving loved ones in limbo.
In 2022, genetic genealogy linked the crime to David Sinopoli, who had lived in the same apartment complex. He was arrested after DNA was secretly collected from a discarded coffee cup. The shocking arrest solved a case that had gone cold for nearly half a century, highlighting how overlooked suspects can be hiding in plain sight.
13. The “Lady of the Dunes” Is Identified
In 1974, the mutilated body of a woman was found in the dunes of Provincetown, Massachusetts. Her hands were missing, possibly to prevent identification. For decades, she was simply called the “Lady of the Dunes,” and her identity remained a mystery.
In 2022, she was identified as Ruth Marie Terry through forensic genealogy. The FBI soon linked her murder to her husband, Guy Rockwell Muldavin, who had a history of violence and missing wives. Though Muldavin died years earlier, identifying Ruth gave closure to a mystery that had haunted Cape Cod for nearly 50 years.
14. The 1964 Murder of Marise Chiverella
In 1964, 9-year-old Marise Chiverella was abducted while walking to school in Hazleton, Pennsylvania. Her body was found in a strip mine—raped and strangled. The community was shaken, but despite collecting semen evidence, the killer remained unknown.
In 2022, a 20-year-old college student helped crack the case by utilizing publicly available genealogical data. Police identified James Paul Forte, who had died in 1980. His remains were exhumed, and the DNA matched. After nearly 60 years, Marise’s murder was finally solved, thanks in part to a determined young researcher who refused to give up.
15. The 1975 Cold Case of Donna Brazzell
Donna Brazzell was just 22 when she was found strangled in a hotel room in Mississippi in 1975. Her murder stumped local police and faded into obscurity. For decades, her family was left with no answers, and the case gathered dust.
Then, in 2021, DNA from the crime scene was matched to Jerry Lee Benson, who was already serving time for other violent crimes. He confessed to the murder, bringing closure after 46 years. The conviction helped reaffirm the power of re-testing old evidence with today’s cutting-edge technology.
16. The 1983 Murder of Baby Holly’s Parents
In 1981, the bodies of Dean and Tina Clouse were found in a wooded area in Texas, beaten and strangled. They remained unidentified for decades, and their infant daughter, Holly, had seemingly vanished. The case puzzled investigators and stayed cold for over 40 years.
In 2021, forensic genealogy helped identify the Clouses, solving their long-standing mystery. Then, in 2022, in a stunning development, Holly was found alive and well, adopted and unaware of her origins. While the killer has not yet been named, identifying the victims and locating Holly brought long-awaited answers to a family who had been searching since the early ’80s.
17. The 1978 Killing of Genevieve Zitricki
Genevieve Zitricki was found strangled in her South Carolina apartment in 1978. Despite signs of a struggle and DNA recovered from the scene, no one was ever arrested, and the case turned ice cold. Her family endured decades of silence.
In 2018, investigators linked her murder to Robert Brashers, a serial rapist and killer. Brashers had died by suicide in 1999 during a standoff with police. His DNA also connected him to multiple other violent crimes. The match was made possible by genetic genealogy, solving a 40-year-old mystery and linking several seemingly unrelated crimes to one deadly predator.
18. The 1976 Killing of Karen Stitt
Fifteen-year-old Karen Stitt was last seen near a bus stop in Sunnyvale, California, in 1982. Her body was discovered the next morning, brutally assaulted and murdered. The case quickly went cold despite the biological evidence collected from the scene.
In 2022, police arrested Gary Ramirez, a suspect identified through a genealogical search. He had lived in the area at the time but had no prior connection to Karen. After 40 years, her murder was finally solved, offering long-awaited closure to a family that had lived with uncertainty for decades.
19. The 1985 Double Murder of Sally and Shane Trowbridge
In 1985, Sally Trowbridge and her son, Shane, were found murdered in their Colorado Springs home. There were signs of forced entry and a struggle, but no arrests were made. The case eventually went cold and stayed unsolved for 37 years.
Then in 2022, DNA from a rape kit was tested using genetic genealogy, linking the crime to Joseph Holt. He had lived in the area at the time but moved away shortly after the murders. Though he died in 2019, the identification brought long-sought answers and vindicated years of tireless work by investigators.
20. The 1983 Abduction of Lisa Zeigert
Lisa Zeigert, a beloved 24-year-old teacher’s aide, was abducted from the gift shop where she worked in Agawam, Massachusetts, in 1992. Her body was found days later, and the community mourned—but the case remained unsolved for decades.
In 2017, police used new DNA phenotyping technology and genealogy to identify Gary Schara as the killer. When confronted, Schara left a written confession and fled, only to be captured days later. He was convicted and sentenced to life in prison. Lisa’s family finally received justice, 25 years after her tragic death.
21. The 1971 Cold Case of Rita Curran
Twenty-four-year-old Rita Curran was strangled to death in her Vermont apartment in 1971. Despite collecting cigarette butts and hair samples, police couldn’t identify the suspect. Her murder haunted the Burlington community and remained one of its most tragic unsolved cases for over 50 years.
In 2023, forensic genealogy led to William DeRoos, a man who lived just two floors above Rita. He had given police a false alibi at the time and later moved across the country. Though he died in 1986, his DNA on a cigarette at the scene finally confirmed him as the killer. Rita’s family, who never stopped pushing for answers, finally saw justice after half a century.
22. The 1983 Murder of Patricia Smith
In 1983, 50-year-old Patricia Smith was raped and bludgeoned to death in her Colorado home during a series of unsolved suburban attacks. Her death was linked to several other cases, including the notorious Aurora hammer murders, but police couldn’t close any of them for decades.
In 2021, investigators matched DNA from the crime scenes to Alex Ewing, a convicted rapist already serving time in Nevada. He was extradited to Colorado and convicted in 2022. After nearly 40 years, families of multiple victims found justice, and a chilling chapter in Colorado crime history was finally brought to a close.
23. The 1975 Cold Case of Donna Emert
In 1975, Donna Emert was shot and dumped in a rural Washington field. Her murder was tied to an attempted cover-up after she witnessed a robbery, but the case went cold quickly due to lack of evidence and cooperation from potential suspects.
In 2022, DNA from blood found on the scene matched Thomas Sweet, who had long been suspected but never charged. Modern technology provided the missing link prosecutors needed. His arrest came nearly 50 years after Donna’s death, proving how time and science can eventually break through even the most frustrating silence.
24. The 1981 Murder of Suzanne Arndt
Sixteen-year-old Suzanne Arndt was found murdered in a field near her Minnesota home in 1981. She had been sexually assaulted and strangled, but early investigative leads went nowhere. The case remained a painful mystery for her family and community for over four decades.
In 2021, new DNA testing led authorities to Daniel Gressett, who had a history of violence and lived nearby at the time of the crime. He was arrested and charged nearly 40 years later. For Suzanne’s family, the news brought both heartbreak and resolution, knowing the man responsible could finally be held accountable.
25. The 1980 Killing of Sandra Arlinghaus
Sandra Arlinghaus was a young doctoral student at the University of Michigan when she was murdered in her Ann Arbor home in 1980. The case quickly went cold despite signs of a violent struggle and the presence of physical evidence.
In 2022, investigators used advanced DNA techniques to identify James Alan Neal, who had been previously arrested for unrelated offenses. His DNA matched samples found at the scene, leading to his arrest. The case was reopened after pressure from Sandra’s surviving friends and family, showing how determined advocacy can keep hope alive for decades.
26. The 1981 Murder of Cynthia “Cindy” Smith
Cynthia Smith was last seen in 1981 leaving a bar in Lexington, South Carolina. Days later, her body was discovered in a shallow grave. Though DNA was found on her clothing, it remained unmatched in criminal databases for decades.
In 2020, forensic genealogy pointed to Johnny Mack Brown, who had died in 2007. Investigators confirmed the match through relatives’ DNA. While justice couldn’t be served in court, Cindy’s family finally received answers after nearly 40 years of painful uncertainty. Her case became a powerful example of how persistence and technology can rewrite history.
27. The 1972 Killing of Jody Loomis
Nineteen-year-old Jody Loomis was shot in the head while riding her bike in Washington state in 1972. Her murder stumped police for decades, despite tireless efforts to re-interview witnesses and re-examine evidence.
In 2019, semen collected from her boot was used to create a genetic profile, leading to Terrence Miller. He was arrested, charged, and set to stand trial—but died by suicide shortly after jury selection began. His DNA left no doubt about his guilt. Although he never faced sentencing, Jody’s loved ones were finally able to close one of the state’s most disturbing cold cases.
28. The 1988 Cold Case of April Tinsley
April Tinsley, an eight-year-old girl from Indiana, was abducted and murdered in 1988. Her killer taunted police and the public for years, leaving chilling messages and used condoms near children’s toys. Despite this, the case went unsolved for 30 years.
In 2018, DNA and genealogical profiling identified John D. Miller, a local man living just miles from April’s home. He confessed to the crime upon arrest and is now serving a life sentence. His capture ended a decades-long reign of terror and finally gave peace to April’s grieving family and a traumatized community.
29. The 1983 Murder of Linda O’Keefe
Linda O’Keefe was walking home from school in Newport Beach, California, in 1973 when she vanished. Her strangled body was found the next morning in a ditch. For years, investigators followed false leads while her killer remained unidentified.
In 2018, a renewed push using DNA and family trees led to James Neal, who had changed his name and moved across the country. He was arrested at age 72 and charged with Linda’s murder. The case was solved 45 years later, driven by advances in DNA and a campaign to keep Linda’s story alive.
30. The 1975 Killing of Lindy Sue Biechler
Lindy Sue Biechler was only 19 when she was stabbed multiple times in her Pennsylvania apartment. The case was brutal and confounding. Although investigators had DNA from the scene, technology wasn’t advanced enough in 1975 to make a match.
In 2022, with the help of forensic genealogy, police arrested David Sinopoli, who had lived in the same apartment building at the time of the murder. He was located through a match on a coffee cup he discarded at an airport. After nearly 50 years, Lindy Sue’s story finally had a name and a conclusion.