Paul Avrich 
The Haymarket Tragedy [PDF ebook] 

This is the first paperback edition of a moving appraisal of the infamous Haymarket bombing (May 1886) and the trial that followed it—a trial that was a cause célèbre in the 1880s and that has since been recognized as one of the most unjust in the annals of American jurisprudence. Paul Avrich shows how eight anarchists who were blamed for the bombing at a workers’ meeting near Chicago’s Haymarket Square became the focus of a variety of passionately waged struggles.