From the newspaper, they learn that Mawson & Williams have suffered an attempted robbery, but that the criminal had been captured, although the weekend watchman has been murdered. Beddington, the forger and cracksman, was the miscreant, masquerading as Pycroft, and his brother was masquerading as Pinner. Nearly a hundred thousand pounds' worth of American railway bonds, with a large amount of scrip in mines and other companies, was taken, but recovered by the police from the would-be thief.
As the police are called to arrest 'Pinner', Holmes observes that "Human nature is a strange mixture, Watson. You see that even a villain and murderer can inspire such affection that his brother turns to suicide when he learns that his neck is forfeited".