The man who revealed the horror of Auschwitz to the world

Rudolf Vrba escaped from Auschwitz in 1944 and was one of the first people to give first-hand evidence of the gas chambers, mass murder and plans to exterminate a million Jews. Nearly 70 years on from the liberation of the concentration camp, the Telegraph looks back on his legacy So horrific was the testimony from Rudolf Vrba, that the members of the Jewish Council in Hungary couldn't quite believe what they were hearing.