Abarno immediately suspected Carbone of treachery. He protested violently that the missing conspirator had instigated the whole affair, that it was his idea, that he had made the bombs, and that he could be found living with a Hungarian-Jewish family on the fourth floor of a house at 216 East 67th Street. He was fluent in the accusations he made against Carbone, and he grew more fluent as he recovered from the fright of his arrest. So while we escorted the two bombs and the two prisoners to headquarters, other members of the Bomb Squad visited Carbone and placed him under arrest. From them at headquarters we verified the story as we already knew it. Each man accused the other. Both men exonerated Polignani of any part in suggesting the plot or in making the bombs for several days after their arrest. But Polignani’s true identity could not be unknown to them indefinitely, of course, and when they found out that they had been confiding in a full-fledged detective--ah, then the storm broke! Prompted, I suspect, by pseudo-legal advice, they cried “Frame-up!” until they grew hoarse, but it was too late, for in the possession of Assistant District Attorney Arthur Train was already a sworn statement which fixed their guilt by their own confession. [Illustration: 1. The Dagger Threat to Polignani 2. The Black Hand Threat 3. Frank Abarno 4. Carmine Carbone] The anarchists rushed to their rescue, but their efforts were chiefly verbal. At the Brescia Circle, and at I. W. W. headquarters at 64 East 4th Street, it was common gossip that counsel for the defendants were going to supply 45 or 50 witnesses to swear that Polignani had invited them to make bombs. This I had enjoined him strictly not to do, as a newcomer who talks bombs is a suspicious character in anarchist circles. I know he obeyed. There was organized a “Carbone ed Abarno Defence Committee” with headquarters at 2205 Third Avenue, which solicited other neighboring Italian clubs with anarchistic tendencies for support of the two. Polignani’s photograph appeared presently in a New York Italian newspaper with this caption: “The filthy carrion who by order of the Police of New York devised the bomb plot which led up to the arrest of Abarno and Carbone, now before the Courts. All of us comrades will keep this in mind.” He received several threatening anonymous letters, some bearing the familiar “black hand,” others sketching on newspaper photographs of him the point in his anatomy at which he might expect to feel the dagger of revenge; others mere bombastic defiance. (The anonymous letter-writer is very often a courageous soul who spells out his messages with letters and words clipped from newspapers, so that his handwriting will not betray him.)