Prosecutors of the state National Remembrance Institute have asked a regional court in Lublin, Poland, to issue an arrest warrant for Karkoc. There were years of investigation into U.S. citizen Michael Karkoc, a former commander of a unit in the SS-led Ukrainian Self Defense Legion. Karkoc’s family denied he was involved in any war crimes. Karkoc came to the U.S. in 1949, along with his two sons, he built a fake biography saying he had performed no military service. At that time he said that he worked for his father until 1944 and then worked in a labor camp from 1944 until 1945. Ten years after immigrating he became a naturalized U.S. citizen. Being in the US, he remarried and had four other children. If convicted of contributing to the killing of civilians in the villages of Chlaniow and Wladyslawin in July 1944, Karkoc could face a prison term for life. Prosecutors in Germany also had their own investigation of Karkoc. At a same point it was abandoned after doctors at the geriatric hospital in the U.S. where he was being treated that led them to conclude he is no able for trial.