MOSCOW – A former senior Russian archive official says he saw a file that could shed light on Holocaust hero Raoul Wallenberg’s fate – challenging the insistence of Russia’s KGB successor agency that it has no documents regarding the man who saved tens of thousands of Jews in Hungary before disappearing into the hands of Soviet secret police. Anatoly Prokopenko, 78, told The Associated Press that in 1991 he saw a thick dossier containing numerous references to Wallenberg that suggested he was being spied upon by a Russian aristocrat working for Soviet intelligence. Russian officials later said the file didn’t exist, in line with blanket denials of having information on Wallenberg. “That file is extremely interesting, because it could allow us to determine the reasons behind his arrest.”