Mayor James Knowles
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Ferguson Mayor says the National Guard were not deployed quickly enough

Following a night of violence in Ferguson, Missouri, Mayor James Knowles has told a press conference that the National Guard was not deployed in enough time.

The violence was sparked by a grand jury's decision to not to charge a police officer with the killing of unarmed teenager Michael Brown.

A police chief said violence that followed Monday's verdict was worse than any the St Louis suburb had seen.

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