Richard Baer, last commander of the Auschwitz concentration camp, was arrested here Tuesday. He was a leader of Hitler’s SS, the Nazi “elite guard.”

Josef Schoenen, the 25-year-old youth who desecrated the Cologne synagogue last Christmas Eve, thereby touching off a spate of anti-Semitic incidents throughout the world, was released by the Cologne police today, for lack of evidence in connection with charges that he again daubed swastikas last weekend on buildings in that city.

Schoenen, who last month finished serving a Jail sentence for the Christmas Eve incident, was re-arrested yesterday with another youth, Willi Nickel, for allegedly smearing swastikas and anti-Jewish inscriptions on buildings in a Cologne suburb. Nickel was also released by police today.