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.
She discovered in the process that she enjoyed playing God and holding the power of life and death in her hands.
She recruited Gruber, 19, and Leidolf, 21, and eventually the "house mother" of the group, 43-year-old Stephanija Meyer.
The group killed patients who were feeble, but many were not terminally ill.[2] Investigators criticized the hospital for meeting them with "a wall of silence" as they attempted to look into a suspicious 1988 death.
[4] In 2008, the Justice Ministry in Austria announced that it would release Wagner and Leidolf from prison due to good behaviour.