Green River Killer: Gary Ridgway · 7 Sep 2026 · 12 min

The Sample That Waited Fourteen Years: How DNA Closed the Case

Gary Ridgway murdered at least forty-nine women while passing polygraphs, slipping past detectives, and showing up to work every Monday — until a saliva sample stored for fourteen years finally matched. This is how the Green River Killer was caught, and why it took so long.

Green River Killer: Gary Ridgway
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The Sample That Waited Fourteen Years: How DNA Closed the Case

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What's covered

The Man Nobody Talks About

For nearly two decades, a serial killer operated in plain sight outside Seattle. He had a steady job, a house, a wife.

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The Kenworth Connection

On November thirtieth, two thousand and one, Gary Ridgway was arrested in the parking lot of the Kenworth Truck Company in Renton, Washington. He'd worked there as a truck painter for more than thirty years.

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The First Bodies

The case opened in the summer of nineteen eighty-two. Wendy Lee Coffield, sixteen years old, was found in the Green River on July fifteenth.

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The Polygraph That Failed Everyone

By nineteen eighty-four, Ridgway was a prime suspect. The task force had enough to look hard at him.

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The Apparent Silence

By the mid-nineteen eighties, the rate of disappearances along the Pacific Highway South slowed. The task force shrank.

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The Sample That Waited

In two thousand and one, a forensic lab applied advances in DNA testing that hadn't existed in nineteen eighty-seven. They went back to the stored saliva sample.

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The Plea and the Confession

On June thirteenth, two thousand and three, prosecutors and defense attorneys reached an agreement. Ridgway would plead guilty to forty-eight counts of murder.

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The Victims He Chose and Why That Mattered

Ridgway was deliberate about his targets. He chose women who were sex workers, runaways, and young women with unstable home situations.

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The Women Still Without Names

Despite his cooperation, Ridgway couldn't account for everyone. Some victims he described with enough detail to locate.

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The Name Gap

Gary Ridgway killed more people than Ted Bundy. He operated for longer.

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