 Leo is also skeptical of Sage's story as he does not believe that a Nazi would simply confess his crimes 70 years later.Leo investigates "Josef Weber" and finds that no such SS guard by that name existed, but under much coaxing from Sage, Josef confesses his real name was Reiner Hartmann, who was indeed an officer at Auschwitz.Over time Sage is able to gather bits and pieces of information (photographs, dates, people, places, documents) from Josef and she gives it to Leo.