Spatz, Hugo (1888-1969)

Wikipedia: a German neuropathologist. In 1937, he was appointed director of the Kaiser Wilhelm Institute for Brain Research. He was a member of the Nazi Party, and admitted to knowingly performing much of his controversial research on the brains of executed prisoners. Along with Julius Hallervorden, he is credited with the discovery of Hallervorden-Spatz syndrome (now more commonly referred to as Pantothenate kinase-associated neurodegeneration)