 Complete the following phrase:  Roman Świątkiewicz, pen name Roman Świątek, or Romuald Świątek-Horyń born May 20, 1928, is a Polish writer, war veteran and World War II amateur historian. He published two controversial books about his personal experiences, Przed czerwonym trybunałem in 1987 in London re-issued in Poland in 1990 and The Katyn Forest in 1988 in London under the pseudonym of Romuald Swiatek. In the books he blamed the Germans for the Katyn massacre. In his second book he also claimed that Gerhard Buhtz, the leader of the German 