Americans across the nation were reactive to the wave of riots of 1967 which killed over 150 people, called the worst rioting this country saw up to then. The red summer riots of 1919 killed 150 people in individual cities. A dozen cities burned over the summer. I find it interesting that anarchists and white nationalists ganged together not just to burn several black ghettos in the north, but also to kill police officers.
Omaha is only one example of a collection of insurrections: