As a dangerous anarchist movementAmericans seen labor unions as a threat. This was broken up and some got killed.
Public support for unions fells.
Employers grew more suspicious of labor unions.
Haymarket Square Riot
The Haymarket Riot resulted in the conviction of several labor leaders in a bombing that killed several police officers, even though there was no evidence they had anything to do with it. This incident represented a turning point for labor unions in the United States. Although many were perfectly content with the identification and imprisonment of the labor leaders, others viewed these men as martyrs based on the lack of evidence which was presented to convict them.
The Haymarket Riot took place in Chicago in 1886. It was a protest by workers demanding an eight-hour workday, and it turned violent.
The Haymarket Affair refers to the effect of a bombing that took place at Haymarket Square during a protest on May 4, 1886. One of the effects of the events was that most Americans turned away from radicalism.
The Haymarket Riot.
The Haymarket Riot was associated with violent tactics by unions, and individuals came to view them as potentially dangerous organizations.
Public support for unions fells.
Employers grew more suspicious of labor unions.
As a result of the Haymarket Square Riot, membership in the Knights of Labor declined quickly because the public associated unions with violence and radicalism.
Employers grew more suspicious of labor unions.
Haymarket Square Riot
as a dangerous movement
Newspapers reported the Hay market incident as a riot by workers.
The Haymarket Riot resulted in the conviction of several labor leaders in a bombing that killed several police officers, even though there was no evidence they had anything to do with it. This incident represented a turning point for labor unions in the United States. Although many were perfectly content with the identification and imprisonment of the labor leaders, others viewed these men as martyrs based on the lack of evidence which was presented to convict them.
I believe you are referring to the Haymarket Square riot.