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By the late 1980s and early 1990s, the Green River investigation slowed significantly due to a lack of new evidence. Despite the scale of the task force and thousands of leads, no suspect had been charged. The case became one of the most prominent unsolved serial murder investigations in the United States.
Not applicable. This entry reflects the investigative status rather than a specific crime scene.
Evidence was preserved, and case files remained open. Investigators anticipated that future forensic advancements might provide new leads.