NEW : Flag burning at protest provokes strong reactions . Police make eight arrests in St. Louis protests , department spokesman says . The demonstrations began after the acquittal of a white former police officer who shot and killed an unarmed black teenager, Michael Brown. not about the black teens that are dead , the burning flag . '' A 9 mm pistol allegedly fired by the teen was found at the scene .
NEW : Flag burning at protest provokes strong reactions . Police make eight arrests in St. Louis protests , department spokesman says . The demonstrations began after the acquittal of a white former police officer who shot and killed an unarmed black teenager, Michael Brown. A 9 mm pistol allegedly fired by the teen was found at the scene .