The exiled Russian revolutionary Leon Trotsky was assassinated in Mexico City in August 1940, stabbed in the head with an ice-pick.

Trotsky's grandson, Esteban Volkov, then aged 14, lived with his grandfather, and describes arriving home from school that fateful day.

He also recalls a previous assassination attempt three months earlier.

Photo: Esteban Volkov with his grandparents, Leon Trotsky and Natalia Sedova (courtesy of Trotsky Museum, Mexico City)