Gary Ridgway, famously known as the Green River Killer, is a notorious American serial killer who terrorized the Seattle-Tacoma area in Washington state during the 1980s and 1990s. Ridgway’s heinous crimes involved the murder of at least 49 women, making him one of the most prolific serial killers in U.S. history. His chilling moniker derived from the Green River, near which many of his victims were found. Ridgway’s case remains a dark and haunting chapter in criminal history, highlighting the need for improved law enforcement techniques and resources to capture serial offenders.