This article examines the participation of nurses in the euthanasia program as it existed in the time of National Socialism in Germany & describes the participation of nurses at one of the 6 killing centers, Hadamar, located near Frankfurt, Germany. The authors assert that over 10,000 mentally & physically handicapped patients were killed by nurses as a part of the euthanasia programs, with over 100,000 being killed in all. Factors’ influencing the nurses’ willingness to kill are described & include the socialization of the German people toward euthanasia as well as ideological commitment, economic factors, & putative duress. (29 refs)