The circumstances surrounding Dag Hammarskjöld’s death on 18 September 1961 have been the subject of a catalogue of suspicion, speculation, and official scrutiny since the moment the charred carapace of his plane, the Albertina, was recovered outside Ndola, Zambia. Did it, as the then-Rhodesian authorities concluded, crash? Was it shot down by a mysterious second plane? Was it blown up by a carefully emplaced bomb? Susan Williams pursues all of these possibilities, and various subspecies of them, in her exhaustively researched account, Who Killed Hammarskjöld? The UN, the Cold War and White Supremacy in Africa.