The Atlas Vampire (also known as the Vampire Murder Case) is the nickname given to the unknown assailant who committed the unsolved "Vampire Murder" in Stockholm, Sweden in 1932. On May 4, 1932, a 32 year old prostitute was found murdered in her small apartment in the Atlas area of Stockholm near Sankt Eriksplan. She had been dead for a couple of days and her skull had been crushed and the detectives noticed that someone had been drinking her blood. Wikipedia
The definitive Wikipedia entry for Atlas Vampire. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Atlas_Vampire