The trial of a former SS watchman, aged 94, began Tuesday in a Münster juvenile court.

German newspaper Die Welt reports that the man, whose name is not disclosed for legal reasons, is alleged to be complicit in the murders of 65,000 victims of Stutthof Concentration Camp in Eastern Poland when he served there from 1942 to 1944. Officially, he is accused of being an accessory to the murders of 100 Polish POWs on June 21 and 22, 1944. For these crimes, he could serve up to a 15-year-sentence.

The man appears in juvenile court because he was under 21 years old when he allegedly committed his crimes; he took his post when he was 18 and left when he was 20. Other sources say that at his appearance he was inattentive and hard-of-hearing, and that the trial will be held for a maximum of two hours each day due to the defendant’s advanced age.

The defendant’s trial follows that of Oskar Groening, the “bookkeeper of Auschwitz” last year. Groening was found fit to carry his four-year sentence, but he died before he could begin it.

Media reports that the defendant’s trial may be one of the last of its type due to dying-out of the WWII generation.