Adolf Eichmann was the man who decided which Jews were sent to prisons, and which were sent to extermination camps. Preceded by Reinhard Heydrich.
because he was promised money and good fortune.
The Israeli's in 1962, when he tried to sneak into their country. They executed him shortly thereafter.
Eichmann was captured on 11 May 1960 in a Buenos Aires suburb, he was tried, convicted, sentenced and executed.
Eichmann played a key role in the practical organization of the Holocaust. Please see the link for more detail.