But then, the Zodiac Killer upped the ante with the second cipher that hit the papers ... resembled the first: a grid with letters, backward letters, shapes, and other symbols.

The Zodiac Killer was known for sending cryptic letters about his crimes to newspapers ... I didn’t hear anything for a ...

The FBI is investigating letters sent to several news stations in Albany, New York, that claimed to be from the “Chinese Zodiac Killer.” The Albany Field Office is asking media outlets in the area to ...

His letters to local news outlets featured cryptograms, in which he called himself “Zodiac ... Lives 2 Years After His Arrest in the Gilgo Beach Murders Where Is Selena's Killer Now?