As grisly as the murders were, perhaps the most intriguing element of the Zodiac's modus operandi, according to History.com, were the letters, cards, and ciphers the killer sent to the police and ...

Much like the Zodiac killer who terrorized northern California in the '60s, the New York Zodiac left letters taunting police ... Parham said he was a Cancer and then a shot rang out.

and that the Zodiac killer’s alleged letters and ciphers were actually written by multiple people.

Most documentaries, series, and movies centered around the infamous Zodiac Killer focus on his terrible crimes, chilling letters and ciphers, and the seemingly neverending search for his identity.

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 ...