Demonstrators stand in the middle of West Florissant holding a street sign, with their hands up, towards the police during ongoing protests in reaction to the shooting of teenager Michael Brown in Ferguson

Demonstrators stand in the middle of West Florissant holding a street sign, with their hands up, towards the police during ongoing protests in reaction to the shooting of teenager Michael Brown in Ferguson

Demonstrators stand in the middle of West Florissant holding a street sign, with their hands up, towards the police during ongoing protests in reaction to the shooting of teenager Michael Brown in Ferguson, Missouri, August 18, 2014. Police fired tear gas and stun grenades at protesters in Ferguson after days of unrest sparked by the fatal shooting of an unarmed black teenager by a white policeman. REUTERS/Lucas Jackson (UNITED STATES – Tags: CIVIL UNREST CRIME LAW)