From Robin Hood to the Kray twins there has been a tendency in Western European cultures to mythologise outlaws, many of whom were cold blooded murderers. The American gangsters of the 1920's to the present day have been glamorised is countless movies, comics and novels. The villains are often portrayed as far more interesting than their law enforcement opponent, who often in these myths become villains themselves.
The murderous activities of Jesse James and Billy the Kid, John Dillinger and Bonny & Clyde left dozens of innocent people dead and many families of ordinary folk grieving. The New York & Chicago mobs destroyed the lives of thousands and made life a misery for the legitimate businesses of those cities.
The reality is that virtually all gangsters going back from modern times to the medieval outlaw were motivated by greed and prepared to kill sometimes for pleasure to support their life styles.
What is it about Western culture that perpetuates the heroic myths?