CHICAGO, Sept. 17, 2017 - Police line marches towards demonstrators in St. Louis, Missouri, the United States, Sept. 16, 2017. Police on Saturday put up barricades around the courthouse and police headquarters in St. Louis, Missouri, bracing for more protests that are expected to come in days.
Police guard as protestors march in St.
Demonstrators march in St.
A student from Washington University is arrested in St.