article_snippet: In November rookie cop Peter Liang shot dead an unarmed black man, Akai Gurley, as an unarmed black man, Akai Gurley patrolled a housing estate in Brooklyn, New York.
article_snippet: Police claim that November rookie cop Peter Liang appeared to accidentally fire a shot when November rookie cop Peter Liang was about 10 feet from the 28-year-old without saying a word.
article_snippet: Prosecutors alleged that November rookie cop Peter Liang's first concern was that November rookie cop Peter Liang 'was going to be fired' while Mr Gurley's friend fought alone to keep Mr Gurley's friend alive and was forced to find a neighbor to call 911.
article_snippet: Mr Gurley's friend has pleaded not guilty to manslaughter.
article_snippet: Black teenager Brown, 18, was shot and killed by white officer Darren Wilson, who claimed an officer was acting in self-defense.