Today , Ronn talked with Duffy Jennnings, former reporter for the Chronicle. His book, "Reporter's Notebook: A San Francisco Chronicle Journalist's Diary of the Shocking '70s" covers all the major events of this rather violent period, marked by political assassinations, serial killings, kidnappings, a mass suicide, attacks on police, a courthouse shootout, racial murders and gang warfare. You can listen to the Ronn Owens Report weekdays at 11:30am, 3:30pm, and 7:30pm on KGO810 or go to //www.kgoradio.com/ronnowens/