General Sanchez Salazar is the person who has given the best description of the murder of Trotsky. There could have been more persons involved in the plot including the Mexican painter Rivera the husband of Frida Kahlo. There are rumors that Trotsky was romantically involved with her. The killer was an ex-Trotskyist. The wife of Trotsky was expelled from the Fourth International due to the fact that she adopted a much better political stand than her husband, she did recognize that the Soviet Union had a state capitalist economyhttps://www.worldsocialism.org/spgb/socialist-standard/1950s/1950/no-549-may-1950/book-review-murder-mexico-assassination-leon-trotsky