As explored in Netflix’s This Is the Zodiac Speaking, the Zodiac Killer has remained an enigma, captivating true-crime enthusiasts and investigators alike. Active in Northern California during the late 1960s, the Zodiac is believed to be responsible for at least five confirmed homicides, though some speculate the actual number could be much higher. The killer’s chilling ability to elude law enforcement and his penchant for taunting authorities through cryptic letters only added to the fear he instilled in the Bay Area community.