APTOPIX Police Shooting Missouri

A demonstrator throws back a tear gas container after tactical officers worked to break up a group of bystanders on Chambers Road and West Florissant on Wednesday, Aug. 13, 2014 in St. Louis. Nights of unrest have vied with calls for calm in a St. Louis suburb where an unarmed black teenager was killed by police, while the community is still pressing for answers about the weekend shooting. (AP Photo/St. Louis Post-Dispatch, Robert Cohen) EDWARDSVILLE INTELLIGENCER OUT; THE ALTON TELEGRAPH OUT

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