Great Resources:
For More Info:
Mike Morfords Page: https://zodiackiller.net
Mike Butterfields Page: https://zodiackillerfacts.com
David Oranchaks Page: http://www.zodiackillerciphers.com
Wikipedia Commons: https://commons.m.wikimedia.org/wiki/Category:Zodiac_killer
Zodiac Basement: https://sites.google.com/view/zodiac-basement/home?authuser=0
Forums:
Reddit: https://www.reddit.com/r/ZodiacExtortion/
Websleuths: https://www.websleuths.com/forums/forums/the-zodiac-killer.469/
Mike Morfords Forum: https://zodiackiller.net/community/
Video Archive:
https://diva.sfsu.edu/collections/sfbatv/12006
Youtube Channels:
David Oranchak: https://www.youtube.com/channel/UCb3F8bxj0V5KfM_zOHYV2uQ
Youtube:
Codebreaking sites:
Zodiac Killer Cipher: This website is put out by David Oranchak, and this has some interesting code solving programs and things to play with.
Codebreaking site: This website has a viginere and various other codebreaking things to play around with if you need. Very helpful and fun to play with different keywords.
Files
FBI Files:
https://vault.fbi.gov/The%20Zodiac%20Killer/The%20Zodiac%20Killer%20Part%2001%20of%2006%20./view