Marvin Margolis

Mentioned in 3 analyzed podcast episodes across 1 show

A primary suspect identified in the "Killer In The Code" podcast series for potential involvement in the Black Dahlia murder and Zodiac killings. According to the podcast investigation, he used multiple aliases (including Marvin Merrill), possessed surgical skills, and had connections to Chicago and California during the relevant time periods. He is discussed as a person of interest in one of true crime's most enduring cold cases.

Appears On

Killer In The Code

Episode Appearances

Killer In The Code · Feb 19, 2026

Chapter 10: New Age Sherlock

“Suspect identified by Baber as Zodiac Killer using alias Marvin Merrill; also linked to 1947 Black Dahlia murder”

Zodiac Killer cipher decryption (Z13)Black Dahlia murder investigationCryptanalysis methodology and monoalphabetic ciphers

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Killer In The Code · Feb 12, 2026

Chapter 9: Last Man Standing

“Primary suspect in Black Dahlia and Zodiac killings; possessed surgical skills, PTSD, and psychological motivation for crimes”

Black Dahlia Murder InvestigationZodiac Killer CaseCold Case Investigation Methods

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Killer In The Code · Feb 5, 2026

Chapter 8: The Round Table Part 2

“Primary suspect in Black Dahlia and Zodiac murders; used multiple aliases and lived in Chicago, Bay Area, and California during relevant periods.”

Serial killer geographic profiling and multi-state victim identificationCircumstantial evidence standards in criminal prosecutionIdentity manipulation and alias usage patterns in criminal behavior

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