hiː wʌz ɐn ˈaɪwˈɪtnəs tə ðə ɡˌɛɾɔɪzˈeɪʃən, ᵻvˈɛntʃuːəl mˈæs mˈɜːdɚɹ ʌvðə dʒˈuːɪʃ pˌɑːpjʊlˈeɪʃən ɪn nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi tˈuː baɪ ðə nˈɑːtsɪz ænd ðɛɹ kəlˈæboːɹˌeɪɾɚz.
He was an eye-witness to the ghettoization, eventual mass murder of the Jewish population in 1942 by the Nazis and their collaborators.