(JTA) — A man suspected of being a Ukrainian Nazi with links to murders during the Warsaw Ghetto Uprising and other massacres has been living in Minnesota for over 50 years, according to evidence recently uncovered.

The Associated Press reported on Friday that Michael Karkoc, 94, entered the U.S. after lying to immigration authorities in 1949 that he had performed no military service during World War II, concealing his work as an officer and founding member of the SS-led Ukrainian Self Defence Legion and later as an officer in the SS Galician Division.

Nazi SS files say he and his unit were also involved in the 1944 Warsaw Uprising, in which the Nazis brutally suppressed a Jewish rebellion against German occupation, AP reported.

AP said Karcok’s Nazi past was documented in records it obtained through a Freedom of Information Act request and that Karkoc now lives in a modest house in northeast Minneapolis. 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.

Statements from men in his unit and other documentation confirm the Ukrainian company he commanded massacred civilians in Ukraine, AP reported, and suggest that Karkoc was at the scene of these atrocities as the company leader.

Efraim Zuroff, the lead Nazi hunter at the Simon Wiesenthal Center in Jerusalem, said that based on his decades of experience pursuing Nazi war criminals, he expects that the evidence showing Karkoc lied to American officials and that his unit carried out atrocities is strong enough for deportation and war-crimes prosecution in Germany or Poland.

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