The Green River Killer: The Evidence That Waited Twenty Years
On the morning of July fifteenth, nineteen eighty-two, a man fishing the Green River south of Seattle found a body in the water near the bank.
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The Green River Killer: The Evidence That Waited Twenty Years
Pacific Northwest, 1982–1998: women and girls disappeared from a highway corridor south of Seattle, and the file that grew around them eventually ran to forty-nine names. The man convicted of those murders had already been interviewed by the Green River Task Force in 1983, had already passed a polygraph in 1984, and had already given a saliva sample in 1987 — a sample that then sat in evidence while the case went cold around it.
This episode follows the case from the first body pulled out of the Green River to the last set of remains identified four decades later: what the task force did, what forensic scientists later said they could have done sooner, and what the record can and cannot say about a man whose own count of his victims never stopped changing.
The case in brief
- The first victim: Wendy Lee Coffield, sixteen years old, was found in the Green River near Kent, Washington, on July 15, 1982. Within a month, four more bodies were found in or along the same river. 1
- The corridor: most of the women were picked up along Pacific Highway South, in an area where runaways and women working in street prostitution were common, and where a disappearance was easy to miss. 2
- The suspect who stayed a suspect: Gary Ridgway, a truck painter at the Kenworth plant in Renton, first came to the task force's attention in 1983 and was interviewed again in 1984, when he passed a polygraph. In April 1987, police took hair and saliva samples from him under a court order. 3
- The arrest: new DNA profiling matched the 1987 saliva sample to evidence from three victims, and Ridgway was arrested on November 30, 2001, leaving work at the Kenworth factory. 4
- The bargain: in 2003, King County prosecutors agreed not to seek the death penalty in exchange for Ridgway's guilty plea and his cooperation in locating remains. He pleaded guilty to 48 counts of aggravated first-degree murder and was sentenced to 48 consecutive life terms, plus 480 years for tampering with evidence. 5
- The evidence that waited: microscopic spray-paint spheres found on the clothing of eight early victims were not analysed until 2003, after the arrest. The trace-evidence expert who found them said the same analysis was possible with the equipment available in the 1980s. 2
- Still open: the sheriff's office still lists Kassee Ann Lee, Kelly Kay McGinnis and Patricia Ann Osborn as missing in connection with the case, and still asks the public to help identify three women photographed in the early 1980s. 1
What the evidence can and cannot say
The case supports a specific, well-documented core. A series of murders of women and girls took place in King County between 1982 and 1998. Forty-nine of those killings were proved to the standard of a guilty plea. Most of the victims were in vulnerable circumstances — runaways, teenagers, women working in street prostitution — and Ridgway's own account of how he chose them matches what the locations and the case files show: he looked for women he believed would not be missed.
The record is much weaker on the two questions people ask first. The final number of victims is not known and probably never will be. Ridgway confessed to 48 murders in 2003, later claimed in taped interviews to have killed 71, and at other times suggested as many as 80; only 49 killings were ever corroborated and charged. The reason why he killed is also not established beyond his own statements. Investigators and the prosecutors who questioned him described him as a liar whose accounts shifted over time, and his explanations — that he hated the women he picked up, that killing reduced a compulsion he could not control — are his words, not findings.
Two later developments should also be read carefully. The identification of the last known unidentified remains, announced in January 2024, closed one list, not the file: the three missing women remain uncharged cases. And reports in December 2025 that Ridgway was receiving end-of-life care in prison were disputed by the Washington State Department of Corrections, which said his medical condition had not changed; as of this episode there is no confirmed account of his death.
This episode's timeline, victims' list and current case status come from the King County Sheriff's Office file; where a claim rests on reporting rather than a record — the saliva sample and the DNA match, the overlooked paint evidence, the plea and the sentence, the December 2025 reports on his condition — that reporting is named as the claim is made. Claims that remain contested are marked as contested rather than presented as conclusions.
References
- 1Green River homicides investigation
kingcounty.gov
- 2
- 3Detectives' case hinges on 14-year-old saliva sample in Green River arrest
archive.seattletimes.com
- 4
- 5
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