Law enforcement fence-off Sherman Park in Milwaukee, Wisconsin August 15, 2016, after police in the Midwestern city faced off with protesters August 13 and 14 following the death of 23-year-old Sylville Smith, who officials say was armed. A nighttime curfew for teens in the US city of Milwaukee will be more strictly enforced from August 15, 2016 after two nights of violence over the fatal police shooting of a black man. The death angered residents, as it echoes a series of deadly police incidents involving mainly African American suspects. / AFP / Cengiz Yar (Photo credit should read CENGIZ YAR/AFP/Getty Images)