 Complete the following phrase:  He held office during the unrest of the 1960s, some of which was provoked by the police departments discriminatory practices. In the Lincoln Park, Lakeview, Wicker Park and Humboldt Park communities, the Young Lords under the leadership of Jose Cha Cha Jimenez marched and held sit ins to protest the displacement of Latinos and the poor. After the assassination of Martin Luther King Jr. in 1968, 