A.K.A.: "The Acid Bath Murderer" Classification: Serial killer Characteristics: Robberies - Claims that he drank a cup of the victims' blood Number of victims: 6 Date of murders: 1944 - 1949 Date of arrest: February 26, 1949 Date of birth: July 24, 1909 Victims profile: William Donald McSwan / Donald and Amy McSwan / Dr. Archibald Henderson, 52, and his wife Rosalie, 41 / Olive Henrietta Robarts Durand-Deacon, 69 Method of murder: Beating with a blunt instrument / Shooting Location: London, England, United Kingdom Status: Executed by hanging at Wandsworth prison on August 10, 1949