This last week another Zodiac Killed cipher was cracked! Listen to this episode to hear the letter and the story of how it was cracked! Sources: https://arstechnica.com/information-technology/2020/12/zodiac-killer-cipher-is-cracked-after-eludingsleuths-for-51-years/
https://www.theguardian.com/us-news/video/2020/dec/12/mathematician-explains-crackingcalifornia-zodiac-killer-cipher-video
https://www.zodiackiller.com/Letters.html
https://www.history.com/news/the-zodiac-ciphers-what-we-know
https://uproxx.com/culture/zodiac-killer-cipher-code-cracked/
https://www.cbsnews.com/news/zodiac-killer-cipher-solved-amateur-codebreakers-51-years/
