He's been here before, in this country of perpetrators. He saw this country collapse. He was 25 at the time and his Christian name was Ivan, not John; not yet.

Ivan Demjanjuk served as a guard in Flossenbürg concentration camp until shortly before the end of World War II. He had been transferred there from the SS death camp in Sobibor in present-day Poland. He was Ukrainian, and he was a Travniki, one of the 5,000 men who helped Germany's Nazi regime commit the crime of the millennium -- the murder of all the Jews in Europe, the "Final Solution."

DP Demjanjuk had lived in the southern German towns of Landshut and Regensburg where he worked for the US Army. He moved to Ulm, Ellwangen, Bad Reichenhall, and finally to Feldafing on Lake Starnberg. Feldafing belongs to the area covered by the Munich district court, which is why Demjanjuk has been sitting in Munich's Stadelheim prison since he was deported from the US last week. His cell measures 24 square meters, which is extraordinarily spacious by usual prison standards.

Last Big Nazi Trial in Germany

He faces charges of aiding and abetting the murder of at least 29,000 Jews in Sobibor. The trial could start in late summer, provided Demjanjuk, now almost 90, is deemed fit to stand trial. Witnesses will be called to testify, but none of them will be able to identify him. The only evidence lies in the files, but that evidence is strong. Twice, in 1949 and 1979, former Travniki Ignat Danilchenko, who is now dead, stated that Demjanjuk had been an "experienced and efficient guard" who had driven Jews into the gas chambers -- "that was daily work."

Demjanjuk has denied this charge throughout. He says he was never in Flossenbürg or in Sobibor, never pushed people into the gas chambers. The ex-American has adopted the same tactic of denial as many other defendants who stood trial for war crimes after 1945.

DER SPIEGEL

The Holocaust in numbers.

Experts such as Dieter Pohl of the German Institute for Contemporary History estimate that more than 200,000 non-Germans -- about as many as Germans and Austrians -- "prepared, carried out and assisted in acts of murder." And often they were every bit as cold-blooded as Hitler's henchmen.

Just for example, on June 27, 1941, a colonel in the staff of the Germany's Northern Army Group in the Lithuanian city of Kaunas passed a petrol station surrounded by a crowd of people. There were shouts of bravo and clapping, mothers raised their children to give them a better view. The officer stepped closer and later wrote down what he had seen. "On the concrete courtyard there was blonde man aged around 25, of medium height, who was taking a rest and supporting himself on a wooden club which was as thick as an arm and went up to his chest. At his feet lay 15, 20 people who were dead or dying. Water poured from a hose and washed the blood into a drain."

The soldier continued: "Just a few paces behind this man stood around 20 men who -- guarded by several armed civilians -- awaited their gruesome execution in silent submission. Beckoned with a curt wave, the next one stepped up silently and was (…) beaten to death with the wooden club, and every blow met with enthusiastic cheers from the audience."