in the publicity of the upcoming ""call for national action"" robbins and ayers decided to bomb one of chicago's historical monuments located at haymarket square, the exact place where they were to gather the next day. on october 6, two days before the days of rage demonstration, robbins and ayers set off a dynamite bomb that toppled the bronze policeman statue. the mayor called the act as an "attack on all the citizens of chicago, called for law and order, and appealed to the youth." this message offered a portent to the gathering members of sds. during the chaos of the chicago demonstrations robbins got hold of a tear gas tank and threw it back at one of the police officers and began shouting in the streets of his built up anger.