Photos of convicted Nazi guard John Demjanjuk prove that he was at the Sobibor death camp, a museum in Berlin announced on Monday.
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In 1988, an Israeli court convicted Demjanjuk for carrying out war crimes as a guard in the death camp, where he was known as Ivan the Terrible because of his brutal actions toward the Jews there.
The court ruled that he actively took part in the killing Jews at the camp and sentenced him death, but the the Israeli Supreme Court ultimately overturned his conviction, citing inconclusive evidence.
Demjanjuk, who was Ukranian-American, was later put on trial in Germany and was convicted in 2011 of being an accessory to the murder of nearly 30,000 Jews. He appealed the conviction and died before a final ruling was made.
According to the Berlin-based Topography of Terror museum's archive, the photos Demjanjuk were seized from the estate of former SS officer Johann Niemann. Niemann died when inmates launched an uprising at the camp in 1943.
The museum said the photos provided "hitherto unknown insights."
"The Niemann collection expands our knowledge of 'Aktion Reinhard', the murder of 1.8 million Jews in the Sobibor, Belzec and Treblinka camps," the statement said.