Let's Crack Zodiac - Episode 11 - Did someone solve Zodiac's last two ciphers

Zodiac’s 340 cipher has been cracked for almost a year. But codebreakers continue to be baffled by two more unsolved ciphers by Zodiac. A French engineer was in the news for claiming to solve them. What were his solutions? Watch this video for a detailed look. CONTENTS: 0:00 - Intro 0:34 - Z13 overview 1:31 - Dr. . Marsh challenges Zodiac 2:15 - SFPD park station bombing 3:15 - Zodiac’s threat against schoolchildren 4:12 - Z13 cryptanalysis and observations 5:39 - Using simple substitution on Z13 5:57 - Getting names and phrases from Z13 using substitution 8:31 - Changing the rules to find names easier 10:00 - Adding decryption steps 10:46 - Introduction to Faycal’s claims 11:21 - Faycal’s Z13 decryption steps 15:51 - Faycal’s Z13 solution: “KAYR” (Lawrence Kane) 17:04 - Changing his steps slightly yields a different name: “EARL” (Earl Van Best Jr.) 20:34 - Another example yielding a different name: “FRED” (Fred Manalli) 23:31 - Z32