Dr. Joseph (or Josef) Mengele was a high-ranking member of the Nazi party and one dubbed the Angel of Death by people under his supervision at the Auschwitz concentration and extermination camp.
He earned this title because he used the incoming Jews and gypsies as subjects for his experiments, which included trying to change eye color, and artificially joining twins together.
65 years after he conducted these tortuous experiments, and 30 years after he died, Mengele is back in the news as documents related to him and other Nazi officials have been found in a house near Auschwitz in Poland.
This should serve as a reminder not to forget what the Nazis did and how they came to power. God forbid anything similar should happen again.