A Spanish judge says man was a guard at a concentration camp where 60 prisoners died . He is on trial in Germany on charges of being an organizer to thousands of murders . Madrid , Spain ( CNN ) -- A Spanish court is requesting an arrest warrant for alleged Nazi war criminal John Demjanjuk . He was extradited to Germany from the United States in 2009 . Castro 's lawyers have claimed that he was a prisoner of war during the war .
A Spanish judge says man was a guard at a concentration camp where 60 prisoners died . He is on trial in Germany on charges of being an organizer to thousands of murders . He was extradited to Germany from the United States in 2009 . Castro 's lawyers have claimed that he was a prisoner of war during the war .