This letter made the author's threats clear. In other letters, he established a secret code for his communications; it has yet to be broken.
See the complete letter
It's been more than 15 years, but America's Most Wanted is just now ready to reveal a series of very personal threats. In 1991, AMW host John Walsh was sent a series of anonymous, threatening letters that contained cryptic clues, secret codes and claims that the author committed some serious crimes.
The letters appeared to be a copycat of those sent decades before by The Zodiac Killer.
The FBI has examined the letters, and while they still don't know who wrote or sent these letters, they say they were not sent by The Zodiac Killer.
Download our case file, and maybe help to crack the case!