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Zodiac & Black Dahlia Killer Linked in New Theory
12 Apr
Summary
- Investigator Alex Baber proposes Zodiac Killer and Black Dahlia murderer are the same.
- Baber identified WWII veteran Marvin Margolis as the perpetrator.
- A panel will discuss this theory at the Hamptons Whodunit event.

Investigative consultant Alex Baber has presented a startling theory connecting the Zodiac Killer and the Black Dahlia murderer. Baber identified World War II veteran Marvin Margolis as the individual responsible for both infamous crimes. This claim, revealed in December 2025 after extensive investigation, has significantly impacted the true crime community.
Baber's research includes deciphering the Zodiac's Z32 cipher, which he believes provides a direct link between the killer and the Black Dahlia murder. He is scheduled to discuss these new developments, alongside other ongoing cases, at the Hamptons Whodunit event in East Hampton, New York. The panel will feature insights from leading investigators and forensic experts.