Did someone try to stop josef mangla for the horrifying experiments he did in World War 2?

I looked documents of any one tried to stop his work and the best person to answer your question. I read that he had the backing of the Nazi state and they covered his lab and paid for his experiments. His superiors in Berlin required information to racial plans. No official tried to stop him during the war.

I discovered that the opposition was by prisoners. Physicians within the camp did things in secrets. They swapped names on lists and concealed ill people.

One of the doctors was Gisella Perl who assisted women. She did operations at night. I also read from the records that she saved hundreds of lives by not placing women on the lists.

I followed his life since 1945. He left Europe and went to South America. I discovered from old records that he spent some time in Argentina and then proceeded to Brazil.

He was sought by such searchers as Simon Wiesenthal. The Mossad attempted to locate him as well. They desired his crimes to be tried. I saw he stayed hidden with help from others. He passed away in 1979 in Brazil. He was drowned in swimming. He was never punished by any judge.