Mr. Wiesenthal tracked down Karl Silberbauer , at the time a Vienna policeman , who had been the Gestapo aide responsible for arresting Anne Frank and her family in their secret annex in Amsterdam , a feat of sleuthing that buttressed the credibility of Anne 's diary in the face of neo-Nazi claims that it was fabricated .
PERSON
Karl Silberbauer
LOCATION
Vienna
PERSON
Anne Frank
LOCATION
Amsterdam
PERSON
Anne