The "Scorpio Killer" refers to a serial killer who operated in the late 1970s and early 1980s, primarily in the San Francisco Bay Area. The name comes from the astrological sign of Scorpio, which the killer claimed to identify with. The case gained notoriety due to the killer's taunting letters sent to law enforcement and the media. The identity of the Scorpio Killer remained a mystery for decades, leading to extensive investigations and public fascination. In 2023, advancements in forensic technology and DNA analysis led to the identification of a suspect, reigniting interest in the case and providing closure to many affected families.