The friends of Mr. Briggs were communicated with, and it was ascertained that when he left home the morning of the murderous attack, he wore gold-rimmed eye-glasses and a gold watch and chain. The stick and bag were his, but not the hat. A desperate and deadly struggle must have taken place in the carriage, and the stain of a bloody hand marked the door. The facts of the murder and its object, robbery, were thus conclusively proved. It was also easily established that the hat found in the carriage had been bought at Walker's, a hatter's in Crawford Street, Marylebone; while within a few days Mr. Briggs' gold chain was traced to a jeweller's in Cheapside, Mr. Death, who had given another in exchange for it to a man supposed to be a foreigner. More precise clues to the murderer were not long wanting; indeed the readiness with which they were produced and followed up showed how greatly the publicity and wide dissemination of the news regarding murder facilitate the detection of crime. In little more than a week a cabman came forward and voluntarily made a statement which at once drew suspicion to a German, Franz Müller, who had been a lodger of his. Müller had given the cabman's little daughter a jeweller's cardboard box bearing the name of Mr. Death. A photograph of Müller shown the jeweller was identified as the likeness of the man who had exchanged Mr. Briggs' chain. Last of all, the cabman swore that he had bought the very hat found in the carriage for Müller at the hatter's, Walker's of Crawford Street.