The Justice Department continues searching for Nazi war criminals, and said it has found one in Chicago:

Christopher A. Wray, Assistant Attorney General in charge of the Criminal Division, announced today that the Justice Department has asked a federal court in Chicago, Illinois, to revoke the U.S. citizenship of a Chicago resident for his role in a Ukrainian police unit that helped administer and annihilate a Jewish ghetto in Nazi-occupied Poland during World War II.

In a complaint filed today, the Criminal Division’s Office of Special Investigations (OSI) and the U.S. Attorney’s Office for the Northern District of Illinois allege that Osyp Firishchak, 84, who was born in what is now Ukraine, joined the Nazi-operated Ukrainian Auxiliary Police (UAP) in October 1941 and was a member of its 1st Commissariat in L’viv until at least October 1943.

During this time, the 1st Commissariat, along with other armed L’viv UAP units, rounded up Jews, imprisoned them in a ghetto, terrorized them, oversaw their forced labor, killed those attempting to escape and delivered others to killing sites for mass execution.

Between 1942 and 1943, the Justice Department said, the Ukranian Nazi police rounded up almost all of the more than 100,000 Jews in the city of L'viv, and sent them to the death camps.

Since 1979, the special task force investigating Nazi war criminals in the U.S. has nabbed 73 of them, with 59 losing U.S. citizenship in the process.