The Dahlia Zodiac Connection: Part One

Crimes of the Times25mApril 7, 2026

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AI-Generated Summary

In the first episode of 'The Dahlia Zodiac Connection,' host Christopher Goffin explores a groundbreaking theory that the same man may be responsible for both the 1947 Black Dahlia murder and the 1968–1969 Zodiac killings. The central figure is Alex Baber, a self-taught, autistic amateur sleuth from West Virginia who claims to have cracked the infamous Z13 cipher—a 13-character cryptogram sent by the Zodiac killer in 1970 that promised to reveal his real name. Using AI, C++ programming, and cross-referencing public records, Baber narrowed down millions of possible names to one: Marvin Merrill, an alias for Marvin Margolis, a man who had been a top suspect in the Black Dahlia case but vanished after being cleared due to an alibi. The episode reveals how Margolis’s military service as a Navy corpsman gave him the anatomical knowledge to perform the precise, surgical-like dismemberment of Elizabeth Short. Crucially, NSA codebreaker Ed Giorgio and other cryptographers confirmed that the Z13 cipher was constructed using the keyword 'Elizabeth,' linking both cases through a hidden linguistic pattern. Retired LAPD detectives Rick Jackson and Mitzi Roberts, initially skeptical, were convinced by the convergence of circumstantial evidence and cryptographic validation. The episode sets up a compelling narrative arc: a lone investigator challenging decades of official neglect and public obsession with Arthur Lee Allen, now offering a new, mathematically supported identity for history’s most elusive serial killer. The episode ends with a promise to explore Margolis’s life and escape from justice in the next installment.

Key Takeaways
1

The Z13 cipher was likely constructed using the keyword 'Elizabeth,' creating a hidden link between the Zodiac killer and the Black Dahlia murder.

2

Alex Baber, an autistic amateur sleuth, used AI and public records to narrow down 71 million possible names to one: Marvin Margolis.

3

Marvin Margolis was a top suspect in the 1947 Black Dahlia murder and had the medical training from military service to perform the precise dismemberment.

4

Retired LAPD detectives and NSA cryptographers have independently validated Baber’s findings, calling the evidence 'overwhelming' and 'likely to change history.'

5

The convergence of cryptographic proof, historical records, and forensic logic suggests a single killer may have operated across two of America’s most infamous unsolved cases.

…and 3 more takeaways available in PodZeus

Chapters
0:00
10 min

The Z13 Cipher: The Holy Grail of Zodiac Studies

The fact that he was actually a suspect is... You can't consider that a coincidence.

Highlight
10:00
10 min

Alex Baber: The Self-Taught Detective

Baber’s background is explored—his autism, drop-out education, and self-directed study in forensics and cryptography. He describes his journey from being dismissed as a 'smooth talker' to earning credibility through relentless data-driven analysis. His method involved filtering 71 million possible names down to one: Marvin Merrill.

20:00
10 min

The Black Dahlia Connection: Marvin Margolis

He has the background to do that, not only from his short time in medical school, but from his military service where he was a medic and a corpsman who did autopsies and surgeries and things in the field.

Highlight
30:00
10 min

Cryptographic Validation: The Role of the NSA

As a mathematician, we talk about... a likelihood ratio. The probability of anything else being true is so much smaller that this is clearly the winner, okay?

Highlight
40:00
10 min

The Legacy of Neglect and the Power of AI

The episode concludes by reflecting on why Margolis was never prosecuted—due to lack of resources, shifting investigative priorities, and the absence of forensic evidence. It underscores how modern AI and computational tools can now fill gaps left by outdated methods, offering new hope for solving cold cases that have haunted America for decades.

High-Impact Quotes
As a mathematician, we talk about... a likelihood ratio. The probability of anything else being true is so much smaller that this is clearly the winner, okay?
Ed Giorgio22:49
Viral: 92.0
The fact that he was actually a suspect is... You can't consider that a coincidence.
Ed Giorgio22:33
Viral: 88.0
I have to be honest with you. There's been a few of these aha moments. Everything around you freezes for a moment because you realize that you've made a discovery that will change history.
Alex Baber22:04
Viral: 85.0
Speakers

Host

Christopher Goffin

Guests

Alex BaberRick JacksonMitzi RobertsEd GiorgioPatrick HenryRich WisneskiMichael Connolly
Topics Discussed
Zodiac Killer95%Black Dahlia Murder93%Cryptographic Analysis90%Cold Case Investigation88%AI in Forensics85%Amateur Sleuthing80%Historical Crime Theories75%Autism and Exceptional Focus70%
People & Brands

Alex Baber

person

15xPositive

Z13 Cipher

other

14xPositive

Christopher Goffin

person

12xNeutral

Elizabeth Short

person

11xNegative

Crimes of the Times

media

10xPositive

Marvin Margolis

person

10xNegative

Marvin Merrill

person

8xNegative

LAPD

organization

8xMixed

Rick Jackson

person

7xPositive

Mitzi Roberts

person

6xPositive

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