UNITED NEWS INTERNATIONAL (UNI) — The man known as the “Bookkeeper of Auschwitz” has died before his prison term could begin.

Former Nazi SS guard Oskar Groening was found guilty of complicity in mass murder and sentenced to four years in prison in 2015.

The court ruled he’d been an accessory to the murder of 300,000 people at Auschwitz, the infamous Nazi death camp, where he worked as an accountant.

Groening’s lawyers repeatedly lost appeals in the years that followed, but had been awaiting word on one final bid for clemency.

The 96-year-old reportedly died Friday, March 9, at a hospital.

He was never jailed.

Efraim Zuroff, chief Nazi-hunter for the Simon Wiesenthal Center, said it’s unfortunate that Groening escaped at least “symbolic justice.”

In a statement, Zuroff added, “Their victims never had any appeals, nor did their tormentors have any mercy, consequently these perpetrators don’t deserve either.”