After days of protests in Chicago since the release of a video showing a black teenager shot 16 times by a white police officer, demonstrators have gathered in the drizzling rain to march through the heart of the city’s most famous retail district.

After days of protests in Chicago since the release of a video showing a black teenager shot 16 times by a white police officer, demonstrators were poised to disrupt Black Friday shopping with a march through the heart of the city's most famous retail district.