Lynda Kanes was murdered on February 26, 1971. Kanes is a potential Zodiac Killer victim (the twentieth victim) according to Robert Graysmith in his excellent book Zodiac on pages 308-309.
Betty Cloer was killed on June 19, 1971. Cloer is the twenty-first victim according to Graysmith. She was shot and beaten.
Susan Lynch was also murdered on June 19, 1971. She is the twenty-second victim according to his book’s Appendices. She died in San Francisco, California.
Linda Dudley was killed on August 20, 1971. Dudley is unofficially the twenty-third victim. She was killed in San Francisco, California.
