Lainz Angels of Death
Maria Gruber, Irene Leidolf, Stephanija Meyer, and Waltraud Wagner were four Austrian women who worked as nurse's aides at the Geriatriezentrum am Wienerwald in Lainz, Vienna, and who murdered scores of patients between 1983 and 1989. The group killed their victims with overdoses of morphine or by forcing water into the lungs. By 2008, all four of the women had been released from prison. Provided by Wikipedia
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