"The passage of time in no way diminishes the criminal responsibility of those guilty of aiding and abetting the implementation of the Final Solution," stated Ephraim Zuroff of the Wiesenthal Center.
The judge suspended the trial on Thursday because Rehbogen was hospitalized with heart and kidney problems, the news agency AFP reported.
"In the face of evil, there is no neutrality."
"The subject of stolen art is very important - it is about the heritage of the Jewish people."
Now aged 50, Meili says he would do it all again despite the upheaval of exile from Switzerland's close-knit society, which traditionally values unity and conformity.
Finland was attacked by the USSR during the war, and subsequently fought against the Soviets alongside Nazi Germany after the initiation of Operation Barbarossa in 1941.
The suspect said through his defense lawyer that he was “not aware of the background, intent or procedures behind the killing” at the camp.
The comments earned a swift rebuke from leading Jewish institutions in the United States.
"True, it was Germany that established the Camps, but our People were not murdered only in the camps. The members of our nation were betrayed by the people amongst whom they lived....also by Poles."
“Do you know who chased the Jews away to the Warsaw Ghetto? The Germans, you think? No. The Jews themselves went," Kornel Morawiecki said.