Gary Ridgway (born February 18, 1949), known as the Green River Killer, murdered numerous women in Washington during the 1980s and 1990s, earning his nickname when the first five victims were found in the Green River. He strangled them, usually with his arm but sometimes using ligatures. After strangling the women, he would dump their bodies throughout forested and overgrown areas in King County. He was initially convicted of 48 separate murders. As part of his plea bargain, another conviction was added, bringing the total number of convictions to 49, making him the second most prolific serial killer in United States history according to confirmed murders.