Well, I had never heard of Heydrich...but his photo is quite fascinating...quite handsome, in a delicate Nordic way...he certainly looked his Aryan part!
Wikipedia has this: 'Many historians regard him as the darkest figure within the Nazi elite; Adolf Hitler described him as "the man with the iron heart" '.
...and this: 'He excelled in his schoolwork—especially in science...He was shy, insecure, and was frequently bullied for his high-pitched voice and rumoured Jewish ancestry. The latter claim earned him the nickname "Moses Handel." '
Wounded during an assassination attempt. he died when only 38 years old...after he organized the murder of two million Czechs, of whom 1.3 million were Jewish...
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Human beings can be scary.