Michael Karkoc — a 94-year-old Ukranian immigrant who lives in a neighborhood of Minneapolis known for housing populations of both Eastern Europeans and artists — has turned out to be a former Nazi SS commander whose unit was involved in cracking down on the Warsaw uprising, as well as other brutal attacks on civilians. The Associated Press broke the story and Minnesota Public Radio has some great, in-depth coverage. Reached at his home, Karkoc told AP reporters, “I don’t think I can explain.” (Strangely, this has been a big week for Nazi-related news. Yesterday, Xeni posted a story about the discovery of a diary belonging to one of Hitler’s confidants.)