“Gentleman Murderer” executed for 6 killings

January 31, 1957*Kraków, PolandWładysław Mazurkiewicz, known as “The Gentleman Murderer” or “The Elegant Murderer,” is executed for the murders of 6 Note: The date of Mazurkiewicz’s execution seems to be disputed, with some sources citing January 29 and others January 31. On September 24, 1955, Stanisław Łopuszyński visited a doctor, complaining of a searing headache.…