Yvonne Shelly Antosh, a 19-year-old white female, was tragically murdered on May 31, 1983 in Washington state. Originally from Vancouver, British Columbia, she had traveled to Washington shortly before her death. She was last seen at the Ben Carol Motel in SeaTac, Washington, along Pacific Highway South. Her remains were discovered months later, on October 15, 1983, near Lake Sawyer, close to Auburn, Washington.
Her case was linked to the infamous Green River Killer, a serial murderer
who targeted young women, many of whom were involved in sex work. Due to the proximity of her remains to other victims, investigators suspected early on that her murder was connected to the Green River killings. However, it would take nearly two decades before her killer was officially identified.
In November 2003, Gary Leon Ridgway, known as the Green River Killer, pleaded guilty to the murder of Yvonne Shelly Antosh, along with 48 other women. Ridgway had terrorized the Seattle area between 1982 and 1998, strangling his victims and disposing of their bodies in remote locations. His arrest in 2001 was a breakthrough in one of the most notorious serial murder cases in U.S. history. DNA evidence and circumstantial links tied him to multiple victims, including Yvonne Shelly Antosh. He was sentenced to 48 consecutive life terms without the possibility of parole.
Despite Ridgway's confession, many details surrounding Yvonne Shelly Antosh's final moments remain unknown. Her exact cause of death could not be determined, though investigators classified her case as a homicide. Her murder, along with those of many other young women, remains a haunting reminder of the brutality inflicted by one of America's most prolific serial killers.
