The Zodiac Who Gave Himself Away

The Zodiac Who Turned Himself In: The Case of Heriberto Seda An unemployed man from Brooklyn signs his police confession with the same handwriting and symbol he used to taunt New York for six years. In November 1989, a threatening letter arrives at the NYPD signed "Zodiac," but it is filed away. Months later, shootings and notes with stones reveal an obsessed imitator of the most famous killer never captured. In this episode, we explore how Heriberto Seda kept the New York police paralyzed while his attacks evolved erratically: first coordinated Thursday attacks with astronomical patterns, then impulsive ones in 1992-1994. Three stones at a crime scene, a deciphered maritime code, and DNA on a stamp create a web of evidence that remains unsolved for years until a domestic shooting in June 1996 exposes him. How did a criminal imitator end up voluntarily revealing himself with his own signature? Victim: Heriberto Seda (perpetrator); multiple victims including Joseph Prosy, Patricia Fonte, and Diane Ballard Date: November 1989 - June 1996 Location: New York (Brooklyn, Queens, Manhattan) Status: Sentenced to 235 years in 1999; currently incarcerated - Seda shoots his half-sister Gladis Reyes in June 1996 and voluntarily barricades himself with 13 homemade weapons and two bombs. - A complete fingerprint extracted from a 1990 letter remains unmatched in databases until his arrest six years later. - Patricia Fonte is stabbed over 100 times in an attack that breaks all of Seda's previous patterns: a non-Thursday day, extreme method, inexplicable rage. - Seda signs his domestic confession with the cross and zodiac sevens identical to his letters to the NYPD, instantly revealing himself to Detective Herbert. Heriberto Seda, New York, serial killer, imitator, Zodiac, investigation, mystery, homicide, 1989-1996, true crime SpanishTo 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