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 HalvagisSeptember 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 HalvagisLocation: Melbourne, Victoria, AustraliaDate: 1997-1999Status: 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 foundPeter Dupas, Nicole Paterson, Margaret Josephine Mack, Mersina Halvagis, Melbourne Victoria Australia, 1997, homicide, serial killer, forensic signature, criminal justice system failure, recidivism, true crime EnglishTo 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: [email protected] you'd like to listen to this podcast ad-free and access premium episodes, we invite you to try our subscription with a 14-day free trial at obomedia.com.© 2026 Created with OBOMEDIA technology. All rights reserved. This episode and its content (audio, text, and associated materials) are the property of their respective creator and are distributed under the OBOMEDIA name on platforms such as Apple Podcasts, Spotify, Amazon Music, and Pocket Casts. Reproduction, distribution, editing, or total or partial commercial use is prohibited without prior written authorization. For permissions, licenses, and commercial inquiries: [email protected]