Question: who ordered the assassination of leon trotsky?
Answer: Jaime Ramón Mercader del Río (born 7 February 1913 – 18 October 1978), more commonly known as Ramón Mercader, was a Spanish communist and NKVD agent who assassinated Russian Bolshevik revolutionary Leon Trotsky in Mexico City in August 1940 with an ice axe. He served 20 years in a Mexican prison for the murder.