Investigator Links Zodiac Killer and Black Dahlia Murderer to One Man Using AI

The Black Dahlia Case

• 📌 In January 1947, the mutilated body of aspiring actress Elizabeth Short, dubbed the "Black Dahlia," was discovered in Los Angeles.
• ⚠️ Friends, including Marvin Margolus, noted her penchant for black clothing and her raven hair.
• 🔍 Margolus fell under suspicion for lying to police about his relationship with Short, and was considered a suspect.
• ✉️ Following the discovery, the editor of the Los Angeles Examiner received a call about the murder, and authorities intercepted a package containing Short's birth certificate and letters.

The Zodiac Killer Case

• 🔪 In December 1968, two teenagers were murdered near San Francisco, followed by another couple's deaths seven months later.
• 📜 The "Zodiac Killer" claimed responsibility in letters sent to local papers, also including coded messages (ciphers).
• 🎯 Over 20 ciphers were sent, with the Z13 cipher in April 1970 famously containing the phrase "my name is" followed by another undeciphered code.

AI-Powered Breakthrough

• 💡 Investigative consultant Alex Baber utilized cutting-edge AI technology to crack the Z13 cipher, a feat that eluded experts for decades.
• ⚙️ Baber approached the problem by treating the cipher as a mathematical equation, analyzing letter frequency and character counts against Social Security Administration data.
• 📊 Over nine months, processing 71 million names, the AI narrowed down potential candidates by cross-referencing with census records and witness accounts, eventually identifying Marvin Margolus as the sole probable suspect.

Connecting the Crimes

• 🩺 Police initially suspected Margolus in the Black Dahlia murder due to his medical studies at USC and his ex-marine background, fitting the profile of someone with surgical precision and a potentially volatile relationship with the victim.
• 🖼️ A significant link emerged when Margolus's descendant recognized handwriting samples from the Zodiac letters and later revealed a sketch made by his father.
• ✍️ This sketch, signed and dated 1992, depicted Elizabeth Short with unique wounds matching the autopsy and, crucially, contained the word "Zodiac" subtly embedded within it, providing physical evidence connecting Margolus to both crimes.