Cynthia Haven at The Book Haven:
Jangfeldt’s research revealed a startling fact: Wallenberg had at least 15 kilograms of gold and jewelry in his car when the Red Army arrested him in 1945. Again, why? Jangfeldt suggests that this was the amassed fortune of many of the Jewish victims Wallenberg had helped, who had left their valuables with him for safekeeping. He wished to return them at the war’s end to help them rebuild their lives. It seems like a reckless risk, but perhaps he had gotten away with so much, so often, that he had begun to feel invulnerable. In any case, the decision may have been the fatal one.
In April 1945, Averell Harriman, acting on behalf of the U.S. State Department, offered the Swedish government American help in making inquiries about Wallenberg’s fate. His offer was declined. Jangfeldt called this “a symbol of Swedish passivity.” The Swedes persuaded themselves that Wallenberg had been killed in Hungary – “the assumption that he had been killed in Budapest was very cynical,” Jangfeldt said. We now know he was taken to the Soviet Union’s notorious prisons, Lefortovo and later the Lubyanka.
The Soviet foreign service reassured the Swedes that they had conducted an investigation, and that they knew of no one named Wallenberg in the Soviet prison system.