Finch had been tracking several Galleanists, including Carlo Valdinoci, and the agent's successes, such as leading the raid on Cronacca Sovversiva and his arrest of Raffaele Schiavina and Andrea Ciafolo, were well known to Galleanist militants. The Galleanists intended their bombs to be delivered on May Day, the international day of communist, anarchist, and socialist revolutionary solidarity. Only a few of the packages were delivered. Because the plotters had neglected to add sufficient postage, one of the packages was discovered, and its distinctive markings enabled the interception of most of them. No one was killed by the mail bombs that were delivered, but a black housekeeper, Ethel Williams, had her hands blown off when she opened a package sent to the home of Senator Thomas W. Hardwick, a sponsor of the Immigration Act of 1918. In June 1919, the Galleanists managed to explode eight large bombs nearly simultaneously in several different U.S. cities. Targets included the homes of judges, businessmen, a mayor, an immigration inspector, and a church. The new bombs used up to twenty-five pounds of dynamite packed with metal slugs to act as shrapnel, all contained in a cast steel pipe. Among the intended victims were politicians who had endorsed anti-sedition laws and deportation, or judges such as Charles C. Nott, who had sentenced anarchists to long prison terms. The homes of Mayor Harry L. Davis of Cleveland, Judge W.H.S. Thompson, Massachusetts State Representative Leland Powers, and Attorney General A. Mitchell Palmer, already a previous target of a Galleanist mail bomb, were attacked. None of the officials was killed, but the explosions killed William Boehner, a 70-year-old night watchman, who had stopped to investigate the package left on Judge Nott's doorstep, as well as one of the most wanted Galleanists – Carlo Valdinoci, a former editor of Cronaca Sovversiva, and a close associate of Galleani, who blew himself up as he laid a package bomb at the door of Attorney General Palmer's home. Though not injured, Palmer and his family were shaken by the blast and their house was largely destroyed. The blast hurled several neighbors from their beds. Either Valdinoci tripped over his bomb or it went off prematurely as he was placing it on Palmer's porch. The police collected his remains over a two-block area. All of the bombs were accompanied by a flyer that read: War, Class war, and you were the first to wage