Question: What Austrian-British biographer, historian, and investigative journalist's book Albert Speer: His Battle with Truth" was the basis for the 2000 play Albert Speer?
Sentence (from "Gitta Sereny"): Gitta Sereny, CBE (13 March 192114 June 2012) was an Austrian-British biographer, historian, and investigative journalist who came to be known for her interviews and profiles of controversial figures, including Mary Bell, who was convicted in 1968 of killing two children when she herself was a child, and Franz Stangl, the commandant of the Treblinka extermination camp.
Relevant evidence: Yes