Attorneys representing dozens of Auschwitz survivors and their relatives say German justice moved too slowly in bringing to trial a former SS sergeant who served at the death camp.

In closing arguments Wednesday at Oskar Groening's trial, attorney Cornelius Nestler questioned why it took 70 years after the end of World War II to put the 94-year-old on trial for 300,000 counts of accessory to murder. Nestler says it's "far too late, but not too late."

Thomas Walther, who represents 51 co-plaintiffs with Nestler, told the court Groening deserves respect for talking about his role in Auschwitz, but that survivors "remain greatly disappointed" they didn't hear him take personal responsibility.

Germany allows victims of a crime to join a case as co-plaintiffs. A verdict is expected later this month.