The New York assistant district attorney noted that the timing, location, and method of delivery all pointed to Wall Street and J.P. Morgan as the targets of the bomb, suggesting in turn that it was planted by radical opponents of capitalism, such as Bolsheviks, anarchists, communists, or militant socialists. Investigators soon focused on radical groups opposed to U.S. financial and governmental institutions and known to use bombs as a means of violent reprisal. Often throughout the Gilded Age radical ideology and violence was used as a form of protest by groups to initiate change. When simple protests were not enough, these extremists would resort to ruthless measures to be heard. Although the violence proved to be detrimental to their overall cause, many historians saw that this was a clear point of radical behavior aimed at facilitating transformation throughout the classes. They observed that the Wall Street bomb was packed with heavy sash weights designed to act as shrapnel, then detonated on the street in order to increase casualties among financial workers and institutions during the busy lunch hour.