The Simon Wiesenthal Center alleges that he was a guard and listed him in fourth place on their most wanted list.[4] At the age of 93, Lipschis was arrested on 6 May 2013 for being complicit in murder.[5] He claims that although he worked at Auschwitz, he was only a cook.[6] He was found to be unfit for trial in December 2013 and March 2014.[7][8] The prosecution from Stuttgart, Germany, has created virtual Auschwitz to reveal what was visible from watchtowers. To secure convictions, the prosecutors are using a mixture of testimonies and archived paperwork alongside modern techniques, including 3D modeling.[9][10]