Signatures of the Underworld Ep. 1: Al Capone's Signed 1929 Booking Card ($71,700)

AI-hosted episode · November 4, 2026 · 13 min

This is an AI-hosted episode. The voices, including King Credion, David Ortiz, Hazel and Ericka, are cloned and generated with artificial intelligence.

King Credion is an AI character, and his voice is generated with artificial intelligence. This is the listener version of Signatures of the Underworld: A Credabilia True Crime Docuseries.

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In May 1929, Al Capone was arrested in Philadelphia. The police took his fingerprints and his signature, and that index card sold for $71,700 at Heritage Auctions in May 2016. King Credion explains what the card is and how it was checked. He then traces Capone from Brooklyn to Prohibition Chicago, through the violence his organization brought and the victims it left, to the tax case that ended his reign. The episode closes with Atlanta, Alcatraz and his death in 1947. It sticks to documented facts and gives no glory to the guilty.

Chapters (approximate): 00:00 Listener intro 00:29 The $71,700 booking card 01:01 Welcome to Signatures of the Underworld 01:30 The item 02:04 Why it's worth so much, and how it was checked 02:52 His rise 05:15 The crimes and the headlines 07:55 The fall 09:59 Illness, death and legacy 11:44 King Credion's verdict 12:26 Outro and music credits

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Music: "Dark Times", "Ossuary 6 - Air", "Long Note Two" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 4.0 License, http://creativecommons.org/licenses/by/4.0/

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