Mackenzie Lueck: the planned murder with a secret room

Jack the Stripper: The Signature Scotland Yard Never Solved

System Releases Him Thirteen Months Before He Murders Three: The serial murders of Nicole Paterson, Margaret Josephine Mack, and Mersina Halvagis September 1996. A man with sixteen documented sexual assault convictions walks free from a Victorian prison. Psychiatric records flag him as high-risk. No one stops him. Thirteen months later, a woman is found dead with injuries Australian forensic science had never documented before. In this investigation, we examine how Peter Dupas moved through decades of institutional cycles-arrested, convicted, released, reoffended-each time the system processing him without breaking the pattern. We reconstruct the three murders that finally caught him, the forensic signatures that linked them, and the central question: why did a system with complete knowledge of his escalating violence repeatedly set him free? Victim: Nicole Paterson, Margaret Josephine Mack, Mersina Halvagis Location: Melbourne, Victoria, Australia Date: 1997-1999 Status: Convicted; three life sentences - A man released in September 1996 with sixteen prior sexual assault convictions and documented psychiatric warnings against release - A forensic signature so specific-mutilation of breasts and surgical placement-that it appeared in case files as unprecedented in Victorian records - Investigators discovered he had called Nicole Paterson's phone fifteen times in forty days while denying ever knowing her - His grandfather's grave was 128 meters from Mersina Halvagis's body, and he rented a hotel directly across from the cemetery where she was found Peter Dupas, Nicole Paterson, Margaret Josephine Mack, Mersina Halvagis, Melbourne Victoria Australia, 1997, homicide, serial killer, forensic signature, criminal justice system failure, recidivism, true crime English To listen to this podcast ad-free and access premium episodes, try our subscription with a 14-day free trial at obomedia.com. © 2026 OBOMEDIA. All rights reserved. This episode and its content (audio, text, and related materials) are the exclusive property of OBOMEDIA and are protected by applicable copyright laws. Reproduction, distribution, editing, or commercial use, in whole or in part, without prior written permission from OBOMEDIA is prohibited. For permissions, licensing, and business inquiries: business@obomedia.com [business@obomedia.com].

Doris Adriana Niño: the fan who died in the orbit of a star and was buried without a name

The carpet that disappeared: Diomedes and the buried secret: The homicide of Doris Adriana Niño In the early morning of May 15, 1997, a man in a yellow sweater throws a body wrapped in a raincoat into a thicket on the outskirts of Bogotá. Three farmers see everything. But when the police arrive, no one asks about the carpet that disappeared from the apartment where it all happened. In this episode, we explore the contradictions that condemned singer Diomedes Díaz: a death that changed causes between autopsies, fluids from three men found on the corpse, and a note with the exact address kept in the pocket of an engineer who loved an idol too much. How did six years in prison turn into three and a half years of freedom? Victim: Doris Adriana Niño Date: May 14-15, 1997 Location: Bogotá, Colombia Status: Closed case with reduced sentence - Mechanical asphyxia confirmed in second autopsy after two years; first autopsy concluded overdose. - Fluids from three men found on the corpse; post-mortem abuse never formally investigated. - Carpet from the apartment replaced without authorization from the record label before forensic inspection. - Diomedes released after 3 years and 7 months of a 6 and a half year sentence; died in 2013 as a popular idol. Doris Adriana Niño, Bogotá premeditated homicide 1997, murder, mechanical asphyxia, investigation, cover-up, impunity, cartel, criminal minds, Spanish true crime If you want to listen to this podcast ad-free and have access to premium episodes, we invite you to try our subscription with a 14-day free trial at obomedia.com. © 2026 OBOMEDIA. All rights reserved. This episode and its content (audio, text, and associated materials) are the exclusive property of OBOMEDIA and are protected by applicable copyright laws. Reproduction, distribution, editing, or commercial use in whole or in part is prohibited without prior written authorization from OBOMEDIA. For permissions, licenses, and business inquiries, write to: business@obomedia.com [business@obomedia.com].

The Kabukicho case: obsessive love, violence, and a criminal turned social phenomenon

No body, no forgiveness: the murder that Tucumán could not solve: The disappearance and murder of Beatriz Argañarás On July 31, 2006, a 45-year-old teacher leaves her home for work and disappears without a trace. Blood splatters in a freshly painted apartment, a car filled with fuel, and text messages would be enough to convict two women of murder, but the body would never be found. How do you prove a perfect crime when the victim remains missing? In this episode, we explore the forensic investigation that faced impossible contradictions: alibis that didn’t add up, injuries on hands that spoke of a struggle, and a fuel record that placed the accused exactly on the route to El Cadillal. Susana Acosta and Nélida Fernández were sentenced to twenty years, but decades later they were granted parole without revealing Beatriz's whereabouts, leaving the most disturbing question of Tucumán justice open. Victim: Beatriz Argañarás Date: July 31, 2006 Location: San Miguel de Tucumán, Argentina Status: Disappearance without a body; convicted on parole - The apartment was painted and fumigated between the first and second searches, but Beatriz's blood remained on the bathroom frame, the wall, and the plumbing. - Susana and Nélida filled up with gas twice on the day of the crime; the exact amount matched the trip from the apartment to El Cadillal and back. - Luis Fernández's housekeeper testified that she washed one of his shirts with blood stains on the same July 31. - Both convicted women married in prison as a pact of silence and obtained parole in 2023 and 2024 without revealing where the body is. Beatriz Argañarás, Tucumán 2006, murder without a body, mystery, forensic investigation, Argentine justice, enforced disappearance, criminal minds, kidnapping, Spanish true crime If you want to listen to this podcast ad-free and have access to premium episodes, we invite you to try our subscription with a 14-day free trial at obomedia.com. © 2026 OBOMEDIA. All rights reserved. This episode and its content (audio, text, and associated materials) are the exclusive property of OBOMEDIA and are protected by applicable copyright laws. Reproduction, distribution, editing, or commercial use, in whole or in part, is prohibited without prior written authorization from OBOMEDIA. For permissions, licenses, and business inquiries, write to: business@obomedia.com [business@obomedia.com].

The Killer Who Prevented Earthquakes: Herbert Mullin

Man Feeds Two Women Into Industrial Shredder in Basement: The double homicide of Adriana Joiosa and Lidia Hernández Freshly painted walls, the smell of bleach, and in the center of the room, an industrial shredder with remnants of flesh and bone. When investigators opened the basement door in Majadahonda, Madrid, they discovered evidence of two women who had vanished without a trace-one five years prior, the other just days before. The forensic contradiction that would haunt this case for years was just beginning. In this investigation, we explore the impossible collision between a severely mentally ill man and the calculated precision of his crimes: forged documents prepared years in advance, a phone moved across multiple Spanish cities to construct a false alibi, internet searches for cremation methods, and the methodical construction of an industrial disposal system. How could a patient with paranoid schizophrenia-a man known to neighbors for screaming about demons and rituals with dead animals-orchestrate two murders with the cold calculation of a psychopath? Victim: Adriana Joiosa and Lidia Hernández Date: April 2015 (Adriana); circa 2010 (Lidia) Location: Majadahonda, Madrid province, Spain Status: Unsolved (bodies never recovered) - Industrial shredder found in basement contained DNA from both victims mixed together - Bruno's internet history included searches for "cremation," "meat grinder," and "funeral documentation" before the crimes occurred - Adriana's phone continued sending messages and traveling across Spanish cities after she disappeared, with Bruno controlling her digital identity - Bruno submitted forged property transfer documents three years after his aunt vanished, claiming ownership of the building where both victims disappeared Adriana Joiosa, Lidia Hernández, Majadahonda basement murders, 2015, paranoid schizophrenia, industrial shredder, serial killers, investigation, forensic science, unsolved mysteries, homicide, true crime English To listen to this podcast ad-free and access premium episodes, try our subscription with a 14-day free trial at obomedia.com. © 2026 OBOMEDIA. All rights reserved. This episode and its content (audio, text, and related materials) are the exclusive property of OBOMEDIA and are protected by applicable copyright laws. Reproduction, distribution, editing, or commercial use, in whole or in part, without prior written permission from OBOMEDIA is prohibited. For permissions, licensing, and business inquiries: business@obomedia.com [business@obomedia.com].

The Zodiac Who Exposed Himself

Man Reads FBI Manual and Decides to Become Serial Killer That Year: The Murders of Peter Walker, Christopher Donn, Perry Bradley III, Andrew Collier, and Emmanuel Spiteri London, spring 1993. Five men vanish from the same gay bar within twelve weeks. All are found bound, gagged, strangled-scenes so clean they seem unconnected. Then the killer calls the police himself, unprompted, demanding recognition for crimes investigators haven't yet linked. Why would a serial killer volunteer a confession before capture? Explore how Colin Ireland meticulously studied forensic procedures and gay community codes, executed five murders with surgical precision, then destroyed his own perfect crimes by calling the newspapers. Discover the single fingerprint mistake, the fourth victim's refusal to break under torture, and the psychological profile that reveals a man hunting for fame rather than fleeing justice. Victim: Peter Walker, Christopher Donn, Perry Bradley III, Andrew Collier, Emmanuel Spiteri Date: March-June 1993 Location: London, England Status: Solved - Colin Ireland planned his first murder on New Year's 1993 with the stated goal of becoming a serial killer before December - He called The Sun newspaper after killing Peter Walker, not to confess but to warn that the victim's dogs needed rescue - The killer peered through a window frame to watch emergency responders arrive, leaving the only fingerprint evidence across four crime scenes - Emmanuel Spiteri refused to reveal his bank PIN under torture, preventing the killer from completing his signature ATM withdrawal Colin Ireland, London serial killer 1993, Coleherne pub murders, Earl's Court gay community, forensic signature, serial killer psychology, true crime English To listen to this podcast ad-free and access premium episodes, try our subscription with a 14-day free trial at obomedia.com. © 2026 OBOMEDIA. All rights reserved. This episode and its content (audio, text, and related materials) are the exclusive property of OBOMEDIA and are protected by applicable copyright laws. Reproduction, distribution, editing, or commercial use, in whole or in part, without prior written permission from OBOMEDIA is prohibited. For permissions, licensing, and business inquiries: business@obomedia.com [business@obomedia.com].