High racial tensions caused the riot to escalate quickly.βββββββ
βBut above all of this, I had a sense of wonder and unbelief that human beings could act as such savages as they were during this situation. I thought of the hate on the faces of these hoodlums who were running to attack us, and I thought that they looked exactly like a pack of wild animals out for a kill.β
(Arthur G. Falls, as quoted from Robert Loerzel, 2019, "Blood in the Streets")
Angry about the events at the beach, African Americans beat whites in cars, while whites beat and shot African Americans. These occurred many times.
"Lawless mobs roam our streets. They kill inoffensive citizens and no notice is taken. They are Negroes β they are only Negroes β and it doesnβt matter. Houses have been bombed and lives taken in our glorious, free city, but it is only a few Negroes. They have had the nerve to move into white neighborhoods. It serves them right. Why should Chicago bother to make democracy safe for Negroes?β
(Ida B. Wells, as quoted from Robert Loerzel, 2019, "Blood in the Streets")
Soon, athletic clubs, groups of American Irishmen, began attacking African Americans. They burned down the Lithuanian neighborhood and blamed it on African Americans, along with other houses.

(Jun Fujita, 1919, Chicago History Museum Images)

("Report Two Killed, Fifty Hurt, in Race Riots," 1919, Defender)

(Trollinger, 2019, Fighting America)
In all parts of the city, white mobs dragged from surface cars, black passengers wholly ignorant of any trouble, and set upon them.
(The Chicago Defender, "Ghastly Deeds of Race Rioters Told," 1919, via History Matters)
Encouraged by new social movements that emerged during the return from World War I, African Americans, mostly soldiers, broke into an armory. As more people joined the fighting, the riot soon became almost uncontrollable.






