Complex sentence: Prigione is considered to be the key player in the change in attitude and in action of the Mexican state; he was engaged in secret talks with the government the month before the inauguration of President Carlos Salinas de Gortari in December 1988.
Split into simpler sentences: Prigione is considered to be the key player in the change in attitude and in action of the Mexican state. He was engaged in secret talks with the government the month before the inauguration of President Carlos Salinas de Gortari in December 1988.