Paraguay-Latin America: The Case of Dr. Mengele (PDF) (cia.gov)The search for German war criminal Josef Mengele has centered on South America, long a haven for Nazi fugitives. Paraguay has been a special target for investigators. Mengele reportedly lived there during the early 1960s, and some Nazi hunters believe he still resides in Paraguay under official protection. Mengele, a physician, is accused of selecting tens of thousands of inmates at the Auschwitz concentration camp for medical experiments or extermination in gas chambers.