Others may be involved. I would put the best age estimate of the killer to be 35-40 in 1969. Five murders were directly linked to him, although he claimed to have killed up to 37 people. My inclusion of this material should not be interpreted as an endorsement of Kane’s candidacy as a suspect, nor should it be construed as an out-and-out repudiation. I am limited to the info I … Yes, it is possible he is still alive. In fact the Zodiac Killer remained quiet for nearly three years. I mean, he could still be alive. My knowledge of one of the suspects whereabouts starts In the summer of 1968. BugsMoran wrote:Sandy, I think your suspect is the Zodiac.I have been reading your posts for years and I think you have a great deal of knowledge. The BTK Killer did it. One author, Lyndon Lafferty, even claimed in his book that the Zodiac Killer was alive and in 2014, living as a 91 year old in San Francisco. … Although many have been suspected of being the Zodiac Killer, it has never been proven to be anyone. Take this quiz to find out the answers. But most of the other suspects are dead and Zodiac would probably have been around the same age as most of them. One author, Lyndon Lafferty, even claimed in his book that the Zodiac Killer was alive and in 2014, living as a 91 year old in San Francisco. One month after the Los Angeles letter of March 13th 1971, a Zodiac film was released on April 7th directed by Tom Hansen, and later that year the blockbuster 'Dirty Harry' movie, based on the Zodiac Killer, was released on December 23rd 1971 directed by Don Siegel. I am limited to the info I can give so as not to reveal who they are. Then again, people thought the same about Golden State Killer and he was found alive, so anything's possible. My alive unnamed suspects are brothers and are still alive. That would be the ultimate taunt to police. The notorious zodiac killer successfully terrorized northern California as after killing more than 40 people. Is Ross Sullivan still alive? There are some things I know for sure and other things I suspect. Yes, it is possible he is still alive. And there's one burning question most viewers have: Is the Zodiac killer still alive? The Unabomber did it. Take the Quiz: The Case Of The Zodiac Killer. My alive unnamed suspects are brothers and are still alive. The infamous Zodiac killer is still alive according to one police officer who wrote a book on his own theory of who the real killer might be. This quiz is about the case of one of Americas most infamous serial killers. The Zodiac Killer terrorized the northern California region in the late 1960s to early 1970s. So most likely, no. I recommend you put the entire story together in one manuscript, including your direct dealings with this person, your research and your communication with various law enforcement agencies.