Doctor Viktor Brack, organiser of Nazi Germany's T4 "Euthanasia programme". During its operation, physicians killed thousands of people who were "judged incurably sick, by critical medical examination". The programme officially ran from September 1939 until August 1941, but it continued unofficially until the end of the Nazi regime in 1945.
Hermann Erich Bauer (March 26, 1900 — February 4, 1980), sometimes referred to as "Gasmeister", was a SS-Oberscharführer (Staff Sergeant). He participated in Nazi Germany's Action T4 program and later in Operation Reinhard, serving as a gas chamber operator at Sobibor extermination camp. Erich Bauer was one of the persons who directly perpetrated the Holocaust.
Nachdem die Bevölkerung die Sterilisations-Maßnahmen an Behinderten und so genannten Asozialen lautlos hinnahm, auch die Kinder-Euthanasie erregte nicht allzu viel Aufsehen, beschlossen die Entscheidungsträger des nationalsozialistischen Regimes die Aktion T4, die Vergasung Tausender Behinderter, Kr