New episode: Zodiac and Batman

The Riddler in the upcoming Batman movie is based on the Zodiac Killer. This new episode of Let’s Crack Zodiac started as a quick look at how the new Riddler and his ciphers compare to Zodiac, but then turned into…

Did someone solve Zodiac’s last 2 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…

Let’s Crack Zodiac – Episode 10 – Can Anagrams Unlock Zodiac’s Secrets?

A report on the recent news of an alleged breakthrough in the Zodiac case involving a new suspect. Let’s examine the evidence linking this suspect to the Zodiac crimes, including decipherments that use anagrams. Do anagrams reveal Zodiac’s secret plans…

Slides from Sam’s talk

Click below to download the slides from Episode 8, Sam’s presentation about how we solved Z340. http://zodiackillerciphers.com/sam_blake_340_talk.pdf (p.s.: There is a cipher hidden somewhere in the slides)

Let’s Crack Zodiac – Episode 9 – Odds and Ends

Let’s Crack Zodiac: Episode 9 is out! https://youtu.be/ByMe8D9sxo4 In this episode, we explore some random topics related to the 340 cipher: How close did others get to solving it? Hidden clues: Are they real or fake? How did Zodiac make…

Did Zodiac inspire this scene from Training Day?

How was the Zodiac Killer’s 340 character cipher made?

The new episode of Let’s Crack Zodiac has been released! It’s about the aftermath of the 340 solution. And how the cipher might have been created.

BREAKING NEWS

Last weekend, we solved the 340 and submitted it to the FBI. They have confirmed the solution. Authorities have spent the time since then making the appropriate notifications to the victims’ families. Now that the notification process is complete, we…

Let’s Crack Zodiac – Episode 4 – National Cryptologic Museum

The National Cryptologic Museum has been closed due to the pandemic, so they’ve been doing a series of online educational events. They invited me to give a lecture about the Zodiac ciphers.  Check it out in my latest episode of…

Let’s Crack Zodiac – Episode 3 – The 408

Join me for a deep dive into the Zodiac Killer’s first mysterious cipher, as told through a combination of newspaper articles, police reports, FBI documents and books.  Learn about Zodiac’s crimes, his taunting letters, the mysterious cryptogram he sent to…