TCP Ep. 25 John Madinger, Author of Going Under: Kidnapping, Murder, and a Life Undercover

First off, thank you all for your support, comments, and praise for Spoilers on Audible. The first week has gone incredibly well. I’m really excited, couldn’t do it without you.

Tonight I get to talk to John Madinger, Author of Going Under: Kidnapping, Murder, and a Life Undercover.

John joined the drug war in 1974 as a sheriff’s deputy then served as a narcotics agent, supervisor, administrator, and special agent with the U.S. Department of the Treasury. Fifteen years of that time, John spent undercover assignments from Florida to Honolulu and worked major fraud and money laundering cases, becoming one of the country’s leading authorities on money laundering.

John holds a bachelor’s degree in criminal justice from Indiana University and a master’s degree in history from the University of Hawaii.

On the literary front, John wrote two textbooks, Confidential Informant: Law Enforcement’s Most Valuable Tool, and Money Laundering: A Guide for Criminal Investigators (3rd Edition). He’s written two novels, Death on Diamond Head and Pipe Dreams, and a history of the opium trade, Opium Kings of Old Hawaii. He’s received awards for fiction, non-fiction, short stories, and even poetry. His most recent book, a memoir, Going Under: Kidnapping, Murder, and a Life Undercover, was released on September 13, 2022, by WildBlue Press.

Don’t forget to like, subscribe, and rate the TCP. Do that and I send you a free ebook. Hit me up by DM on IG @thatscriminalpodcast or email,, and I’ll send you either Brother’s KeeperShattered Circle, or Wraith of Sheltermount.

Big thanks to Crush Limbo for the music.

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