In this episode of 'The Trial USA,' senior reporter Josh Boswell shares groundbreaking findings that potentially link two of America's most infamous cold cases: The Black Dahlia and the Zodiac Killer.

A cold case investigator claims to have cracked the Zodiac's cipher and identified a prime suspect - a former Marine with connections to both cases. We delve into the brutal details of both murders, explores the evidence tying our suspect to each crime, and discuss the extensive efforts made to validate these findings.

The revelations could finally solve mysteries that have haunted the public and law enforcement for decades.

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Presenter: Kayla Brantley

Producer: Lucy Robson

Creative Director: Caroline Cheetham

Executive Producer: Jamie East

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