The Green River Task Force is reaching a breaking point. As the victim count rises through late 1983, investigators shift from reacting to bodies to flooding Pacific Highway South with undercover surveillance, decoys, and early computer databases. But despite tracking leads on primed pickup trucks and ordinary-looking drivers, the killer manages to blend into the background.

In this episode, we trace the heartbreaking stories of Gail Matthews, Mary Bridget Meehan, and other young women lost to this spree. We examine the moment police stood face-to-face with Gary Leon Ridgway at his front door—and how an anonymous, cryptic letter sent to a local reporter held the truth decades before anyone realized it.

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