No mercy.

German prosecutors have ruled that a 92-year-old former Auschwitz guard is fit to stand trial for being an accessory to the murder of tens of thousands of Jews sent to their deaths at the infamous Nazi extermination camp during the Second World War.

Oskar Groening, a former Nazi sergeant, admits serving at Auschwitz for two and a half years but he claims to have merely guarded doomed prisoners’ possessions at the camp and insists that he did not commit war crimes there.

However state prosecutors in Hanover announced on Thursday that they had completed an initial investigation against Groening and pronounced that he was fit to stand trial. He is likely to become the first former death camp guard to appear before a German court in decades.

Evil is still evil, even when it is presented in a doddering, grandfatherly package.