AP IMPACT: Commander of Nazi-Led Unit Lives in US Polish prosecutors announced Friday after the release of the AP investigation that they will investigate Karkoc and provide "every possible assistance" to the U.S. Department of Justice, which has used lies in immigration papers to deport dozens of suspected Nazi war criminals. The AP evidence of Karkoc's wartime activities has also prompted German authorities to express interest in exploring whether there is enough to prosecute. The deputy head of the German office that investigates Nazi war crimes, Thomas Will, said that based on the AP's evidence, he is interested in gathering information that could possibly result in prosecution. Karkoc now lives in a modest house in northeast Minneapolis in an area with a significant Ukrainian population. Even at his advanced age, he came to the door without help of a cane or a walker. He would not comment on his wartime service for Nazi Germany. "I don't think I can explain," he said. Members of his unit and other witnesses have told stories of brutal attacks on civilians. One of Karkoc's men, Vasyl Malazhenski, told Soviet investigators that in 1944 the unit was directed to "liquidate all the residents" of the village of Chlaniow, Poland, in a reprisal attack for the killing of a German SS officer, though he did not say who gave the order. In a background check by U.S. officials on April 14, 1949, Karkoc said he had never performed any military service, telling investigators that he "worked for father until 1944. Worked in labor camp from 1944 until 1945.