In August 1940 the exiled Russian revolutionary, Leon Trotsky, was killed in Mexico City, stabbed in the head with an ice-pick. Trotsky's grandson, Esteban Volkov, then aged 14, was living with his grandfather. He recalls how he arrived home from school that fateful day. (Photo: Esteban Volkov with his grandparents, Leon Trotsky and Natalia Sedova. Credit: Trotsky Museum, Mexico City)