Police officers are seen at a crime scene involving a shooting of a man by St. Louis Metropolitan Police on August 19, 2014. Police in the US city of St. Louis shot dead another suspect on Tuesday, a short distance from a suburb that is the scene of protests over the killing of an unarmed black teenager. St. Louis Police Chief Sam Dotson said in a tweet that officers had responded to a call and found an apparently agitated man, armed with a knife who yelled
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