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 Spanish Tired of ads? Listen to this podcast and 200+ more ad-free on OBOMEDIA. Try it free for 7 days, cancel anytime: https://obomedia.com/en/gratis?ref=desc-6981245 © 2026 Created by an independent creator of the OBOMEDIA Network. All rights reserved. This episode and its content (audio, text, and related materials) are the property of their respective creator, who is solely responsible for them, and are distributed by the OBOMEDIA Network on platforms such as Apple Podcasts, Spotify, Amazon Music, and Pocket Casts. Reproduction, distribution, editing, or commercial use, in whole or in part, without the creator's prior written permission is prohibited. For permissions, licensing, and business inquiries: business@obomedia.com.