Tuviah Friedman survived years in a series of concentration camps during World War II. His parents and two siblings perished.

Friedman, who died Jan. 13 at 88 in Haifa, Israel, made it his life’s work to bring his captors to justice. After the war, he was credited with helping to find Adolf Eichmann, the German officer considered a major architect of the Holocaust.

In the late 1950s, Friedman lobbied the World Jewish Congress and the Israeli government to offer a reward for information leading to Eichmann’s arrest.

On Oct. 18, 1959, a letter from Argentina came to his address. The sender was a partially blind survivor of the Dachau camp. He wrote that Eichmann was alive and living near Buenos Aires under an assumed name.