New Forensic Tests Finally Expose the ZODIAC KILLER's Biggest Secret

How did forensic genetic genealogy, 50-year-old postage stamp DNA, and the cracking of the Z340 cipher create the most powerful forensic assault ever mounted against America's most elusive serial killer? For over 55 years, the Zodiac Killer has been the ghost that American forensic science could not catch — five confirmed murders, four cryptographic ciphers, and zero identifications. This episode follows the forensic trail from the 1968–69 terror campaign through the 2020 cracking of the Z340 cipher, the controversial 2021 Case Breakers identification, and the cutting-edge DNA extraction techniques that may finally break the case wide open. The evidence never lies. 📂 ABOUT BURIED EVIDENCE Buried Evidence explores history's most infamous cold cases through the lens of modern forensic science — DNA analysis, autopsies, cryptography, and peer-reviewed research. Every episode, you become the forensic detective. THE EVIDENCE NEVER LIES. 🔔 Subscribe and turn on notifications so you never miss a case. 👍 Like this video if you want more forensic deep dives. 💬 Who do YOU think the Zodiac Killer was? Drop your theory in the comments.