Discussion post about holocaust | History homework help

How do you account for the participation of doctors and other perpetrators ( such as the Nazi Officer Franz Suchomel) in the Nazi Genocide? Discuss also what your impressions are of Dr. Mengele and the fact that he was a trained scientist, yet oversaw and perpetrated horrific experiments on innocent victims? 

You can use below links to get idea about the subject:

https://www.c-span.org/video/?471273-1/mengele

https://www.bing.com/videos/search?q=nurmeberg+trials+twins+experiments&&view=detail&mid=68915D1C9D282900E36868915D1C9D282900E368&&FORM=VRDGAR&ru=%2Fvideos%2Fsearch%3Fq%3Dnurmeberg%2Btrials%2Btwins%2Bexperiments%26FORM%3DHDRSC4

https://www.bing.com/videos/search?q=suchomel+auschwitz&&view=detail&mid=D1B50AAF6A22601E6C97D1B50AAF6A22601E6C97&&FORM=VRDGAR&ru=%2Fvideos%2Fsearch%3Fq%3Dsuchomel%2Bauschwitz%26FORM%3DHDRSC4