Police, Protesters Clash at Michigan & Cermak - NBC Chicago

    Police, Protesters Clash at Michigan & Cermak

    A mostly peaceful demonstration that began at Grant Park's Petrillo band shell ended with a violent clash at 22nd and Michigan Avenue just outside McCormick place at around 4:45 p.m. (Published Sunday, May 20, 2012) A mostly peaceful demonstration that began at Grant Park's Petrillo band shell ended with a violent clash at 22nd and Michigan Avenue just outside... See More