Answer:
Anarchists
Step-by-step explanation:
On May 4, protesters gathered at Haymarket Square in Chicago. The diverse crowd included anarchists, or radicals opposed to all government. A frenzy broke out when a protester threw a bomb, killing a policemen. Dozens of people, both protesters and policemen, were killed. Eight anarchists were tried for murder, and four were executed. The governor of Illinois, deciding that evidence for the convictions had been scanty, pardoned three of the others.