The FBI’s Zodiac Case Files at their website:

Part 1-
http://vault.fbi.gov/The%20Zodiac%20Kil … %2006/view

Part 2-
http://vault.fbi.gov/The%20Zodiac%20Kil … %2006/view

Part 3-
http://vault.fbi.gov/The%20Zodiac%20Kil … %2006/view

Part 4-
http://vault.fbi.gov/The%20Zodiac%20Kil … %2006/view

Part 5-
http://vault.fbi.gov/The%20Zodiac%20Kil … %2006/view

Part 6-
http://vault.fbi.gov/The%20Zodiac%20Kil … %2006/view

And thanks to another FOIA score, the FBI sent me another bunch of FBI files that were not previously released to the public. These can be seen at the following link:(Thanks to DORANCHAK for putting these files together in one spot)

https://docs.google.com/folder/d/0Bx2Zx … sp=sharing