He was standing underneath the red brick watchtower over the main entrance to Birkenau, the largest of more than 40 camps that made up the Auschwitz complex.
Walking below the iconic watchtower and along the train tracks which delivered so many to evil, images flash to mind of the mass pandemonium and private terror that took place at this site over and over again, as families were severed and their members sorted for labour, or death by asphyxiation.