Lawrence Klein, who also used the alias of Larry Kane, had a significant criminal record which raised concerns when his name came up in connection with the Zodiac case. His documented offenses may have created a certain level of suspicion, but they ultimately did not match the specific nature of the Zodiac’s crimes. Darlene Ferrin, who is believed to be one of the Zodiac’s victims, reportedly had a connection to Klein. Ferrin’s sister stated that Klein had been following Darlene in the months leading up to her murder, adding a layer of suspicion around his behavior. The Zodiac was known to stalk his victims before their eventual murders which increased this suspicion further. Moreover, Kathleen Johns, a possible Zodiac victim who survived an alleged abduction attempt, claimed that Klein resembled her abductor. However, this identification was never confirmed, and several Zodiac victims provided differing descriptions, which casts doubt on the accuracy of her recollection. Despite the concerning behaviors and Larry Kane’s extensive criminal background, they do not match the Zodiac’s pattern. His documented offenses were unrelated to the Zodiac’s modus operandi, and there is no physical or definitive evidence that links him to the Zodiac case. Although the statements by Ferrin’s sister and Johns’ identification are notable, they are insufficient to prove his involvement as the Zodiac Killer.