Golden State Killer: 40-Year Manhunt · 7 Sep 2026 · 13 min

Before and After: The Three Identities That Hid a Monster for Forty Years

The Golden State Killer terrorised California under three separate identities for over a decade — and a retired cop named Joseph James DeAngelo hid in plain sight until a DNA genealogy breakthrough changed cold case investigation forever. This chapter traces how the Visalia Ransacker, the East Area Rapist, and the Original Night Stalker were finally revealed as one man.

Golden State Killer: 40-Year Manhunt
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Before and After: The Three Identities That Hid a Monster for Forty Years

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What's covered

Before and After

Before April of two thousand eighteen, Joseph James DeAngelo was a retired grandfather living in a suburb of Sacramento. He mowed his lawn.

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The Three Names

To understand what it took to catch him, you have to understand who he was across time. He started as the Visalia Ransacker.

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The East Area Rapist

Sacramento didn't know about Visalia. That's the blunt truth of it.

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The Original Night Stalker

By nineteen seventy-nine, the East Area Rapist had disappeared from Northern California. Nobody knew where he'd gone.

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Michelle McNamara and the Name That Stuck

Into that silence came a crime writer named Michelle McNamara. She'd been following the case for years, writing about it publicly and building an audience of people equally obsessed with the unidentified killer.

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GEDmatch and the Genealogy Breakthrough

The actual breakthrough came from a retired investigator named Paul Holes. Holes had worked on the Golden State Killer case for years, and after retiring, he kept working on it.

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Trash from the Curb

By the time investigators had narrowed their genealogical analysis to Joseph James DeAngelo, they needed confirmation. They couldn't arrest on genealogy alone.

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The Guilty Plea

The legal case that followed was shaped by the weight of the evidence and the complexity of the charges. DeAngelo faced thirteen murder counts.

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The Victims Speak

The sentencing hearing in August of two thousand twenty gave the courtroom, and the parking lot, to the people who'd waited longest. Over forty rape survivors and family members of murder victims spoke.

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The Cold Case Revolution

What the Golden State Killer case left behind extends far beyond one conviction. Investigative genetic genealogy, the method Paul Holes used to trace DeAngelo through GEDmatch, is now a recognized discipline.

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