Knowing that he is about to be arrested for murder, John Hector McFarlane asks for Sherlock Holmes' assistance in establishing his innocence. McFarlane is a solicitor who was visited the previous day by Jonas Oldacre who wanted to draw up a will. McFarlane was astonished to learn that Oldacre was naming him as the beneficiary of his fortune. McFarlane had never met the man who ... (展開全部)