CNN) -- John Demjanjuk was found guilty Thursday of involvement in tens of thousands of murders by a court in Germany, capping a 25-year international legal saga over whether he was a Nazi camp guard during World War II. He was sentenced to five years in prison.

German prosecutors accused the 91-year-old former Ohio auto worker of being a guard at the notorious Nazi death camp of Sobibor in Poland.

His defense team argued that he was a prisoner of war who was forced to do what the Nazis wanted.