Seven women vanished with zero forensic evidence behind. This is how it happened. Imagine trusting a stranger only to disappear forever. In the 1970s, a serial killer stalked Santa Rosa. Because the victims of these murders were hitchhikers, their movements were untraceable. Without a consistent signature, police couldn't link the strikes. Was it one phantom or copycats? The answer remains a terrifying cold case mystery. And if you want to go deeper, watch the Zodiac suspects right now.