The last living prosecutor from the Nuremberg trials, who tried Nazis for genocidal war crimes and was among the first outside witnesses to document the atrocities of Nazi labor and concentration camps, has died. Ben Ferencz died Friday evening in Boynton Beach, Florida. He had just turned 103 in March. At the age of 27, with no previous trial experience, Ferencz became chief prosecutor in 1947 for a case in which 22 former commanders were charged with murdering more than 1 million Jews, Romani and other enemies of the Third Reich in Eastern Europe. All the defendants were convicted.