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Case Description
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John Diacone, aged 46, was tragically killed on July 21, 1993, in Queens, New York. His death was part of a series of attacks attributed to a copycat of the infamous Zodiac Killer from San Francisco. This New York-based killer, later identified as Heriberto Seda, targeted individuals based on their astrological signs, leaving behind notes and symbols reminiscent of the original Zodiac Killer's methods. Diacone's murder was one of the final attacks in this spree, which spanned from 1990 to 1993. ...Read More
Links to Additional Sources (9)
See any mistakes?Victim Details
John Diacone
Male
Queens
NY
1993-07-21
46
John
Diacone
11/21/2025
Forum Posts (3)
It's been years since John Diacone's life was taken, yet I often find myself thinking about him and ... ...Read More
09/03/2024
09/03/2024
Hi everyone,
I’ve been thinking a lot about the investigative work that went into solving the s... ...Read More
06/21/2024
I’ve been thinking a lot about the investigative work that went into solving the s... ...Read More
06/21/2024
I recently found myself thinking about the role of the media during the investigation of John Diacon... ...Read More
07/23/2023
07/23/2023
