The Poisoner Who Never Confessed: Yiya Murano

Woman Walks Out of Prison and Appears on Television with Cakes: The Cyanide Deaths of Carmen del Giorgio, Nilda Gamba, and Lelia FormisanoBuenos Aires, 1979. Three middle-class women die within weeks of each other, each certified as natural death. Then an autopsy reveals cyanide in the first victim's body. Two exhumations follow. All three contained the same poison. One person connected them all: a soft-spoken, charming woman who brought cakes on visits and managed their savings.This investigation explores how three deaths certified as cardiac failure became murders, yet the poisoning method was never established. We examine the doorman's testimony, the missing promissory notes, the psychiatric profile of a woman prosecutors called an intelligent psychopath-and the inexplicable gap between an acquittal in 1982 and a conviction in 1985, separated by three mysterious years.Victim: Carmen Zulema del Giorgio, Nilda Gamba, Lelia FormisanoDate: February-March 1979Location: Buenos Aires, ArgentinaStatus: Convicted; Released 1993- Cyanide found in all three bodies, yet the exact poisoning vector was never officially determined- Woman acquitted in 1982 despite three cyanide deaths and eyewitness testimony, then convicted in 1985 with unexplained new evidence- Doorman witnessed her leaving victim's apartment with papers and a jar on the day of the fatal fall- After release from prison, woman married, cooked in prison kitchen, and appeared on television holding cakesYiya Murano, Buenos Aires 1979, cyanide poisoning, three victims, unsolved method, acquitted then convicted, Argentina military dictatorship, 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] listen ad-free and access premium episodes, start your 30-day free trial at obomedia.comOBOMEDIA presents true crime storiesa true crime podcast built on real cases.Every true crime story in our crime files follows the crime investigation from the missing person report to the trial: investigators and police building a murder case, a police investigation gone cold, justice for the victim and those who survived.We open the unsolved murder, the cold case reopened decades later, the mysterious death, the disappearance, the serial killer, the family murder, the murder mystery; the missing persons  a missing woman, a missing girl, a missing man found dead and the missing and murdered.From the infamous case to the unsolved case, from classic true crime to dark true crime and disturbing true crime: true crime reports, real crime stories, real murder cases, true murder stories and unsolved mysteries one true crime case at a time, from the OBOMEDIA true crime vault.© 2026 Created with OBOMEDIA technology. All rights reserved. This episode and its content (audio, text and related 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 commercial use, in whole or in part, without prior written permission is prohibited. For permissions, licensing and business inquirie