The photo that helped bring Nazi mass-murderer Adolf Eichmann to justice has been revealed for the first time, alongside the identity of the man who turned him in. That snap – taken in the early 1950s – shows Eichmann standing to the right of Gerhard Klammer, a German geologist who worked alongside the infamous Nazi at an Argentinian construction firm. Klammer's involvement in bringing Eichmann to justice was only revealed last week, 32 years after his death, with his family's blessing. He emigrated to Argentina in the early 1950s to seek work, and began working for the Capri construction company in Tucuman Province, which sits in the north of the country. Shortly afterwards Eichmann joined the same firm, calling himself Ricardo Klement. Klammer knew of his colleague's true identity, and tried to inform German authorities. His first tip-off was ignored, but after returning to Germany in the late 50s, he confided in a friend who was a priest, who passed it onto Germany's most senior Jewish prosecutor, Fritz Bauer. Bauer gave the intelligence to the head of Mossad, and it ultimately led to Eichmann's capture in May 1960.