Author: azunsolved

Many speculate that the Zodiac Killer’s logo is a crosshair (Figure 1), given a gun was his weapon of choice, and others think his brand was inspired by a Zodiac watch (Figure 2). But why would both the killer and the watch brand adopt the same emblem? Interestingly, this symbol also represents a celestial Zodiac […]

This article explores the hidden meaning behind the map sent to the press by the Zodiac Killer. Drawing upon clues from his Halloween card and other correspondences, this map unveils a possibility the Zodiac Killer was using a map-based methodology. Overview On June 26th, 1970, the Zodiac Killer sent a letter with his Mount Diablo […]

AZUnsolved created an ArcGIS to aid Zodiac theorists in deciphering the Z32 cipher using the “radians and number of inches along the radians” clue as well as the “set 0 to Mag N” clue on the map. It includes the killer’s map overlaying a foundation map, an early 1960s topographic map, location of the crime […]