In the same year, against the earnest advice of the national leaders of the Knights of Labor, the employees of the Third Avenue Railway in New York began a strike which lasted many months and which was characterized by such violence that policemen were detailed to guard every car leaving the barns. In Chicago the freight handlers struck, and some 60,000 workmen stopped work in sympathy. On the 3d of May, at the McCormick Harvester Works, several strikers were wounded in a tussle with the police. On the following day a mass meeting held in Haymarket Square, Chicago, was harangued by a number of anarchists. When the police attempted to disperse the mob, guns were fired at the officers of the law and a bomb was hurled into their throng, killing seven and wounding sixty. For this crime seven anarchists were indicted, found guilty, and sentenced to be hanged. The Knights of Labor passed resolutions asking clemency for these murderers and thereby grossly offended public opinion, and that at a time when public opinion was frightened by these outrages, angered by the disclosures of brazen plotting, and upset by the sudden consciousness that the immunity of the United States from the red terror of Europe was at an end. Powderly and the more conservative national officers who were opposed to these radical machinations were strong enough in the Grand Lodge in the following year to suppress a vote of sympathy for the condemned anarchists. The radicals thereupon seceded from the organization. This outcome, however, did not restore the order to the confidence of the public, and its strength now rapidly declined. A loss of 300,000 members for the year 1888 was reported. Early in the nineties, financial troubles compelled the sale of the Philadelphia headquarters of the Knights of Labor and the removal to more modest quarters in Washington. A remnant of members still retain an organization, but it is barely a shadow of the vast army of Knights who at one time so hopefully carried on a crusade in every center of industry. It was not merely the excesses of the lawless but the multiplicity of strikes which alienated public sympathy. Powderly's repeated warnings that strikes, in and of themselves, were destructive of the stable position of labor were shown to be prophetic.