Tuviah Friedman was born to a Jewish family in Radom, Poland. After the German invasion of Poland in World War II, he was imprisoned in a Nazi concentration camp near Radom, from which he escaped in 1944 and joined the Polish militia. His parents and two siblings were killed. Following the war, he worked tirelessly for the rest of his life as a Nazi hunter. He joined the Vienna branch of the Haganah, the Zionist paramilitary organization, and worked with fellow Nazi hunter Simon Wiesenthal. The two men worked with a small team to capture as many as 250 former Nazis linked to war crimes. In 1950, he moved to the new State of Israel, where he also worked for Yad Vashem, the Holocaust remembrance institution. Then he started his own one-man initiative, the Institute for the Documentation of Nazi War Crimes, in Haifa. He helped discover the whereabouts of Adolf Eichmann, the German officer who was a major architect of the Holocaust. Friedman's autobiography, published in 1961, was entitled The Hunter.