The Zodiac Killer was a serial killer who operated in Northern California during the late 1960s and early 1970s. The killer’s identity remains unknown, and despite numerous investigations and theories over the years, the case remains unsolved. However, if the Zodiac Killer is still alive today, he would be in his 80s or 90s.

The Zodiac Killer is believed to have committed at least five murders in the San Francisco Bay Area between 1968 and 1969, and is also linked to several other attacks. The killer famously taunted the police and the media with a series of cryptic letters and ciphers, some of which have never been solved.
The Zodiac Killer’s last known communication was a letter sent to the San Francisco Chronicle in 1974. In the letter, the killer claimed to have committed more than 37 murders, but only five have been conclusively linked to him. The letter also contained a cipher that has never been solved, despite numerous attempts by codebreakers over the years.
The identity of the Zodiac Killer remains a mystery, and numerous suspects have been named and investigated over the years. However, no one has ever been conclusively identified as the killer, and the case remains one of the most infamous unsolved crimes in American history.
Given the timeline of the murders and the fact that the Zodiac Killer’s last known communication was in 1974, it is likely that the killer would be in his 80s or 90s if he were still alive today. However, there is no way to know for sure whether or not the killer is still alive or what his current age might be.
Over the years, many theories have been put forward about the identity of the Zodiac Killer. Some have suggested that the killer was a disgruntled postal worker, while others have pointed to suspects such as Ted Kaczynski, the Unabomber, or Arthur Leigh Allen, a man who was investigated by police but never charged. However, none of these theories has ever been definitively proven, and the killer’s identity remains a mystery.
Despite the lack of progress in solving the case, the Zodiac Killer continues to captivate the public imagination. The killer’s cryptic letters and ciphers have spawned numerous books, movies, and TV shows, and the case has become one of the most famous unsolved mysteries in history.
In conclusion, if the Zodiac Killer is still alive today, he would be in his 80s or 90s. However, there is no way to know for sure whether or not the killer is still alive, and the case remains one of the most infamous unsolved crimes in American history. While numerous theories and suspects have been put forward over the years, the identity of the killer remains a mystery, and it is likely that the case will continue to fascinate and intrigue people for many years to come.