For nearly twenty years, women disappeared from the highways south of Seattle, and their bodies turned up near the Green River. Police even had their man early on — a quiet truck painter named Gary Ridgway, who sat for a lie-detector test in 1984, answered no, and was sent home. He kept killing. By the time DNA finally caught him in 2001, he had murdered so many women that he himself lost count. He remains one of the most prolific serial killers in American history, and for two decades almost no one suspected the man at the next workbench.

The Bodies by the River

The killings began in the early 1980s along the strip of highway near the Seattle-Tacoma airport, where Ridgway targeted vulnerable women — many of them sex workers, runaways, and teenagers whose absences were slow to be noticed. In 1982, bodies began appearing in and along the Green River, giving the unknown killer his name. A dedicated task force formed, and for years it grew into one of the largest and most expensive serial-killer investigations in American history.

The Suspect Who Walked

Ridgway came onto investigators’ radar relatively early. He was an unremarkable, churchgoing married man who painted trucks for the same company for some thirty years. In 1984 he was asked to take a polygraph test; when asked whether he had ever killed a woman, he said no — and passed. That single result helped push him to the margins of the investigation for years, while the murders continued.

DNA Catches Up

What the polygraph missed, science eventually found. By 2001, advances in DNA testing allowed investigators to re-examine evidence collected years earlier, and it tied Ridgway directly to several victims. On November 30, 2001, he was arrested as he left the factory where he worked. The ordinary man the task force had set aside turned out to be the killer they had hunted for nearly twenty years.

The Deal

In 2003, prosecutors made a controversial bargain. In exchange for being spared the death penalty, Ridgway agreed to confess fully and help locate the remains of victims whose families had no answers. He pleaded guilty to dozens of counts of aggravated murder — ultimately 49 — and was sentenced to life in prison without the possibility of parole. The deal was painful for many families, but it brought some of them the recovery of their loved ones.

A Number No One Can Settle

Even Ridgway could not say how many women he had killed. He confessed to numbers well beyond his 49 convictions — seventy, perhaps ninety — but he could not always remember faces, places, or names, a chilling sign of just how routine the killing had become for him. Some of his victims have never been identified to this day.

Why This Case Still Matters

The Green River Killer went on for so long for a reason that has nothing to do with cleverness: he hunted people the world had decided not to watch. The slow response to missing sex workers and runaways gave him years of cover, and his case became a grim lesson in how a killer’s choice of victims can be its own kind of camouflage.

It is also a cautionary tale about false certainty. A machine told investigators in 1984 that the man in the chair was telling the truth, and that single answer helped him stay free for another seventeen years.

So the most haunting number in the case is not 49, or 71, or 90. It is the number we will never know — the women he could not remember, who are still waiting for their names.