From Yahoo News:
New evidence from Russian archives suggests Swedish diplomat Raoul Wallenberg, credited with rescuing tens of thousands of Hungarian Jews during the Holocaust, was alive after Soviets reported that he had died in a Moscow prison, a Swedish magazine and U.S. researchers reported Thursday.
The fate of Wallenberg, who was arrested in Budapest in January 1945 by the Soviet army, has remained one of the great mysteries of World War II.
The Soviets claimed he was executed July 17, 1947 but never produced a reliable death certificate or his remains. Witnesses claim he was seen in Soviet prisons or labor camps many years later, although those accounts were never verified.
Now, the archives of the Russian Security Services say a man identified only as Prisoner No. 7, who was interrogated six days after the diplomat’s reported death, was “with great likelihood” Wallenberg.
The security services reported the find last November to Susanne Berger and Vadim Birstein, two members of a research team that conducted a 10-year investigation into Wallenberg’s disappearance in the 1990s.