Chico was lodged in the Tombs. After a couple of hours’ sleep Mme. Storey and I were again hard at work on the case. Events followed fast that morning. Acting upon a suggestion of Mme. Storey’s, the police were searching the sewer catch basins in the immediate vicinity of the Institute and in one of them was found an automatic pistol of the latest Rives and Jackson model, 38 calibre, from which one shot had been fired, and also a slightly flattened bullet. The bullet exactly fitted the hole in the plaster of Dr. McComb’s office.
Steps were immediately taken to trace the sale of the pistol by means of the manufacturer’s number, and in the meantime I was sent uptown to secure some photographs of Dr. McComb if that were possible, and also to run down Amadeo Corioli, the night watchman at the
