The Zodiac Killer is one of the most infamous and enigmatic serial killers in history. However, there are many synonyms for this notorious moniker that have been used over the years. Some of these include the Bay Area Killer, the Valley Killer, and the California Killer. Other terms that have been used to describe the Zodiac Killer include the Phantom Killer, the Zodiac Murderer, and the Zodiac Terrorist. Regardless of the term used, the Zodiac Killer's heinous crimes still strike fear into the hearts of many people today, and the case remains unsolved to this day, making him one of the most elusive killers in history.