Specifically, one of the Hungarian officials responsible for identifying Jews, expropriating their property, and giving their names to the Nazis. Young George collaborated in this effort - indeed, his knowledge of the Hungarian Jewish community substantially aided his "godfather" in the task of implementing the Endloesung: a period that Soros would later call "the happiest days of my life".
Soros fled Hungary in 1947 to escape just retribution at the hands of the post-war government.
Interestingly, the Soros' own family wealth survived. George's father, Tivador, forged himself new identity papers that said he was a Christian. He then sold the family real property and sequestered the money abroad. This later became the seed corn of Soros' current vast fortune.
Bump.