Detective Louis N. Scarcella was a legendary figure in New York City during the '90s. In a city overrun with violent crime, he cracked the toughest cases and put away the worst criminals. But the story changed when a group of convicted murderers-turned-jailhouse lawyers made a startling discovery that linked all their cases: Scarcella was the cop who helped put many of them away. They made a vow: Take down Scarcella. And with the help of a relentless New York Times reporter, they did just that. Thirty years later, 20 people who Scarcella helped put behind bars have since walked free. In the media, he’s known as the disgraced, rogue cop who hoodwinked an entire system. But was this really the workings of one person?

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