Id Url Resource class Title Description Source https://policing.umhistorylabs.lsa.umich.edu/s/detroitunderfire/item/2101 Mayor Gribbs BPP account Roman Gribbs, Dictation of Events on Oct. 24-25, 1970, Folder 1, Box 126, Roman S. Gribbs Mayoral Records, Burton Historical Collection, Detroit Public Library