Hauptamt II officials under Viktor Brack played a vital role in organizing the killing of mentally ill and physically handicapped people in the Action T4 "euthanasia" programme, especially the child "euthanasia" from 1939.
High-ranking officials from Hauptamt II, led by Viktor Brack, played a crucial role in planning and executing the mass murder of people with mental illnesses and physical disabilities as part of the Action T4 "euthanasia" program, especially the child euthanasia campaign initiated in 1939.