Marion was one of the most debonair outlaws ever to appear on a wanted poster. He was always immaculately groomed with slicked down hair hidden by a bowler hat. He wore a well-cut suit with topcoat. His wanted poster noted that his shoes were usually polished.
While waiting for transfer to prison, Marion’s cellmate was serial killer H. H. Holmes, who was awaiting trial for swindling. Holmes confessed to Marion that he had murdered several women. Marion shared the information with the authorities, hoping it would lighten his sentence. This, along with petitions from women, got him pardoned after 12 years.
Riddled with tuberculosis, Marion continued his life of crime, and was arrested in Nebraska, where he served two more years. Now a physical wreck, on the evening of December 31, 1910 Marion entered a Chicago saloon with the objective of robbing the cash drawer. Unfortunately, a policeman interrupted the robbery, and Marion was shot dead.