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Police jailed a man for murder; algorithm was key evidence

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By GARANCE BURKE, MARTHA MENDOZA, JULIET LINDERMAN and MICHAEL TARM
Associated Press

CHICAGO (AP) — Michael Williams, a 65-year-old grandfather from Chicago, sat behind bars for nearly a year accused of murder. But the key evidence against Williams didn’t come from an eyewitness or an informant; prosecutors focused on a loud bang picked up by a network of surveillance microphones. Prosecutors said technology powered by a secret algorithm that analyzed noises detected by the sensors indicated Williams shot and killed a man.  Last month, a judge dismissed the case against him at the request of prosecutors, who said they had insufficient evidence. Williams’ experience highlights the real-world impacts of society’s growing reliance on algorithms to help make decisions that have significant impacts on public life.

Article Topic Follows: AP National Business

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