Bonus Episode - Bill Mann - “The Black Dahlia” follow-up interview - The Suspect episode artwork

EPISODE · Jan 27, 2026 · 41 MIN

Bonus Episode - Bill Mann - “The Black Dahlia” follow-up interview - The Suspect

from Once Upon A Crime

A recent Los Angeles Times article has reignited worldwide interest in the Black Dahlia murder, spotlighting an amateur sleuth’s theory that attempts to link the case to the Zodiac Killer—and naming Marvin Margolis as a “new” prime suspect.But Marvin Margolis is not new.In this bonus episode, we’re joined once again by author William J. Mann, whose extensively researched new book, Black Dahlia: Murder, Monsters, and Madness in Midcentury Hollywood, is released today. Long before the headlines, Mann identified Margolis as the strongest—and most credible—suspect in the history of the case.In this follow-up interview, Mann responds directly to the recent media coverage, clarifies what his investigation does and does not support, and explains why decades of armchair detective theories have often missed the mark.This episode cuts through the noise to restore context, credit, and clarity—placing today’s headlines against the backdrop of years of original investigative work.Listen to the Once Upon a Crime series, Broken: The Black Dahlia Murderhttps://www.truecrimepodcast.com/introducing-broken-the-black-dahlia-murder-a-once-upon-a-crime-original-series/About the Book:Black Dahlia: Murder, Monsters, and Madness in Midcentury Hollywood By William J. Mann Available now wherever books are soldGuest:William J. Mann Author of Black Dahlia: Murder, Monsters, and Madness in Midcentury Hollywoodwilliamjmann.com See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

A recent Los Angeles Times article has reignited worldwide interest in the Black Dahlia murder, spotlighting an amateur sleuth’s theory that attempts to link the case to the Zodiac Killer—and naming Marvin Margolis as a “new” prime suspect.But Marvin Margolis is not new.In this bonus episode, we’re joined once again by author William J. Mann, whose extensively researched new book, Black Dahlia: Murder, Monsters, and Madness in Midcentury Hollywood, is released today. Long before the headlines, Mann identified Margolis as the strongest—and most credible—suspect in the history of the case.In this follow-up interview, Mann responds directly to the recent media coverage, clarifies what his investigation does and does not support, and explains why decades of armchair detective theories have often missed the mark.This episode cuts through the noise to restore context, credit, and clarity—placing today’s headlines against the backdrop of years of original investigative work.Listen to the Once Upon a Crime series, Broken: The Black Dahlia Murderhttps://www.truecrimepodcast.com/introducing-broken-the-black-dahlia-murder-a-once-upon-a-crime-original-series/About the Book:Black Dahlia: Murder, Monsters, and Madness in Midcentury Hollywood By William J. Mann Available now wherever books are soldGuest:William J. Mann Author of Black Dahlia: Murder, Monsters, and Madness in Midcentury Hollywoodwilliamjmann.com  See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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Bonus Episode - Bill Mann - “The Black Dahlia” follow-up interview - The Suspect

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How long is this episode of Once Upon A Crime?

This episode is 41 minutes long.

When was this Once Upon A Crime episode published?

This episode was published on January 27, 2026.

What is this episode about?

A recent Los Angeles Times article has reignited worldwide interest in the Black Dahlia murder, spotlighting an amateur sleuth’s theory that attempts to link the case to the Zodiac Killer—and naming Marvin Margolis as a “new” prime suspect.But...

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