He took to Twitter and Facebook on Monday to get the message out about the 10 a.m. July 7 protest in the northbound lanes of the Dan Ryan; it’s to begin at 79th Street. As many as 1,000 people plan to walk about a mile and half to 67th Street to demand city officials do more to address the violence that has claimed the lives of hundreds of Chicagoans, Pfleger said in a phone interview later with the Tribune.