The report notes that police officials last month blamed the unavailability of audio in 80 percent of dash cam videos on officer error and “intentional destruction.”

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Before Chicago officers fatally shot unarmed Quintonio LeGrier last month, the 19-year-old dialed 911 pleading for police assistance, according to The Chicago Sun-Times.

After backlash against police-involved shootings, Chicago officers are making dramatically fewer investigative stops and confiscating fewer guns as murders and shootings have increased so far this year, DNAinfo Chicago reports.

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The emails show that the mayor's staff was “scrambling” on how to deal with and react to the shooting, especially when the media and community activists began ringing the alarm.

Jason Van Dyke's lawyer entered a not-guilty plea Tuesday before a Cook County trial judge.

Two individuals, identified as a 19-year-old college student and a 55-year-old-woman, were fatally shot by Chicago police as officers were responding to a domestic dispute early Saturday morning.

A grand jury on Tuesday returned an indictment on six murder charges and one count of official misconduct against a Chicago police officer in the shooting death of Laquan McDonald.

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Cmdr. Glenn Evans, 53, was cleared of all charges stemming from the 2013 incident involving Rickey Williams, even in the face of the prosecution's most compelling evidence -- Williams' DNA on the officer's firearm

The news comes a year after reports of fatalities and injuries at the hands of police--most recently Laquan McDonald in Chicago--amid widening frustration over the lack of official recordings of the incidents.

The 2012 video released Monday evening shows police using a Taser on Philip Coleman, 38, who later died. The footage comes in the wake of protests that erupted in the city after both the Laquan McDonald and Ronald Johnson videos were released in the past month.