second time, the intended victims included a Massachusetts state representative and a New Jersey silk manufacturer. Fatalities included a New York City night watchman, William Boehner, and one of the bombers, Carlo Valdinoci, a Galleanist radical who died in spectacular fashion when the bomb he placed at the home of Attorney General Palmer exploded in his face. Though not seriously injured, Attorney General Palmer and his family were thoroughly shaken by the blast, and their home was largely demolished. All of the bombs were delivered with pink flyers bearing the title "Plain Words" that accused the intended victims of waging class war and promised: "We will destroy to rid the world of your tyrannical institutions." Police and the Bureau of Investigation tracked the flyer to a print shop owned by an anarchist, Andrea Salcedo, but never obtained sufficient evidence for a prosecution. Evidence from Valdonoci's death, bomb components, and accounts from participants later tied both bomb attacks to the Galleanists. Though some of the Galleanists were deported or left the country voluntarily, attacks by remaining members continued until 1932. May Day 1919 The American labor movement had been celebrating its May Day holiday since the 1890s and had seen none of the violence associated with the day's events in Europe. On May 1, 1919, the left mounted especially large demonstrations, and violence greeted the normally peaceful parades in Boston, New York, and Cleveland. In Boston, police tried to stop a march that lacked a permit. In the ensuing melee both sides fought for possession of the Socialists' red flags. One policeman was shot and died of wounds; a second officer died of a heart attack. William Sidis was arrested. Later a mob attacked the Socialist headquarters. Police arrested 114, all from the Socialist side. Each side's newspapers provided uncritical support to their own the next day. In New York, soldiers in uniform burned printed materials at the Russian People's House and forced immigrants to sing the Star-Spangled Banner. Cleveland, Ohio saw the worst violence. Leftists protesting the imprisonment of Eugene V. Debs and promoting the campaign of Charles Ruthenberg, the Socialist candidate for mayor, planned to march through the center of the city. A group of Victory Loan workers, a nationalist organization whose members sold war bonds and thought themselves still at war against all forms of anti-Americanism, tried to block some of the marchers and a melee ensued. A