Defendant Lonnie Franklin Jr. listens during opening statements of his trial. Franklin is accused of serial murders that terrorized South LA. Al Seib/LA Times via Getty Images hide caption

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Families Of LA Serial Killer's Victims Still Await Closure
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Supporters of Akai Gurley's family gather outside the courthouse where former New York City police officer Peter Liang was sentenced for Gurley's shooting death in Brooklyn, N.Y. Hansi Lo Wang/NPR hide caption

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Many of LA's Skid Row residents live in makeshift tents. Kelly McEvers hide caption

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When It Comes To Policing LA's Skid Row, What Tactics Work?
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A mural memorializing Freddie Gray is painted on the wall near the place where he was tackled and arrested last year by police at the Gilmor Homes housing project in Baltimore, Md. Chip Somodevilla/Getty Images hide caption

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A Year After Freddie Gray's Death, Trials Set To Begin (Again)
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The anonymous Web surfing system Tor is run by volunteers — and sometimes they get caught between the police and criminal suspects. Daniel Acker/Bloomberg via Getty Images hide caption

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When A Dark Web Volunteer Gets Raided By The Police
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An image from a CHP video shows a Chihuahua leading officers on a chase across the Bay Bridge. California Highway Patrol/Screen shot by NPR hide caption

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Brittney Mills (center) stands with her mother, Barbara (left), and a family friend at her baby shower days before Brittney was killed. Aarti Shahani/NPR; Original photo courtesy of Barbara Mills hide caption

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Mom Asks: Who Will Unlock Murdered Daughter's iPhone?
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Authorities search for a suspect following the shooting that killed 14 people on Dec. 2, 2015, in San Bernardino, Calif. The public was able to follow the manhunt by listening to police radio communications streaming online. Chris Carlson/AP hide caption

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Police Radio Chatter Is Open To All Ears. But Should It Be?
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French criminologist Alphonse Bertillon's (left) techniques for identifying criminals in the late 19th century set the template that police use today. Mondadori Portfolio via Getty Images hide caption

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Meet Alphonse Bertillon, The Man Behind The Modern Mug Shot
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Suffolk County Chief James Burke speaks at a press conference held to announce the details of a officer-involved shooting in Bay Shore, Long Island on March 23, 2015. Christie. M Farriella via New York Daily News hide caption

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In N.Y., A Fight To Reform Police Force Accused Of Being 'Rotten'
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