Looks like it actually started as far back as May 28 in a political meeting or something. Then whites hit the steets and beat up some blacks....chasing many out of town over the bridge? Fred Mollman ESTL mayor was preaching for calm, the some guy named Flannigen fired up the crowd into a frenzy. crowd “began getting itchy”
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THE MAY 28 RIOT
That day the muggy city council chambers overflowed with a furious, captive crowd as East St. Louis mayor Fred Mollman stepped to the podium. With characteristic fragility, Mollman pled against “hotheadedness,” but his peacemaking attempt was met by a volley of tirades. Voices shouted about black atrocities committed against white women, black stick-up artists with influential lawyers, and white families left at “the back door of the poorhouse” by black replacement workers. The suggestion of violence swelled and receded with each speaker, until lawyer Alexander Flannigen cleared his throat.
Flannigen, a rambling, brash conversationalist, captured the audience with his mockery of East St. Louis’s blacks. As one witness recalled, the delighted crowd “began getting itchy” when Flannigen suddenly delivered a serious charge: “As far as I know, there is no law against mob violence.”
The overloaded hall erupted in cheers. A pack of the most rabid individuals stormed out of the meeting and into the streets, beating any African American they came across. In the night’s gathering darkness, small mobs attacked dozens of black bystanders. With the authorities apathetically standing by, it’s remarkable no one was killed.
Afterward, hundreds of East St. Louis’s black families packed their suitcases and headed for the bridges. Mobs of whites roared threats at them as they walked across the Mississippi River and out of town.
As the summer progressed, hatred tightened around East St. Louis like a spring under pressure. On the night of July 2, the spring snapped.
***however the Blacks shot up the cops car AFTER all of this. That set off round two.