Jasenovac concentration camp
Petar Brzica: An Ustaše officer who was accused of killing about 1,360 people on August 29, 1942.  He ran away to the United States.  His name was on a list of 59 Nazis living in the U.S., which a Jewish organization gave to the U.S. Immigration and Naturalization Service during the 1970s.  It is not clear what happened to him after that.