Who killed joe merrion? (1916)

Sir Philip Randall, a prominent judge, is fed up with the antics of James, his scapegrace son, and tosses him out of the house. The conflict between father and son leaves Mrs. Randall heartbroken, and when she dies, she makes her husband swear to help James if he ever needs it. When Joe Merrion, a bookmaker, is found dead, circumstantial evidence points to Squire William Rufford. Although Randall can't believe he committed the crime, he is forced to convict him and sentence him to prison. But later, when James, whose wild ways have left him penniless, comes to his father for help, Randall discovers that he was the killer.