In September 2014, Gröning was charged by German prosecutors as an accessory to murder, in 300,000 cases, for his role at the Auschwitz concentration camp. His trial began in April 2015, after the court had ruled that, at the age of 93, he was still fit to stand trial. The trial was held in Lüneburg, Germany. On 15 July 2015 he was found guilty of facilitating mass murder and sentenced to four years imprisonment.