Chicago Haymarket Square ca.1893The crowd gathered on the evening of May 4 on Des Plaines Street, just north of Randolph, was peaceful, and Mayor Carter H. Harrison, who attended, instructed police not to disturb the meeting. But when one speaker urged the dwindling crowd to “throttle” the law, 176 officers under Inspector John Bonfield marched to the meeting and ordered it to disperse. Then someone hurled a bomb at the police, killing one officer instantly. Police drew guns, firing wildly. Sixty officers were injured, and eight died; an undetermined number of the crowd were killed or wounded.