Id Url Resource class Title Description Source https://policing.umhistorylabs.lsa.umich.edu/s/crackdowndetroit/item/6255 "Hayward Brown Acquitted" Groundwork 1973 "Hayward Brown Acquitted," Groundwork, May-June 1973, The American Radicalism Collection: Part 4: Twentieth-Century Social, Economic, and Environmental Movements, Michigan State University, Political Extremism & Radicalism, http://tinyurl.galegroup.com/tinyurl/8Dgti1