Alfredo Ignacio Astiz (born 8 November 1951) is a convicted war criminal and former Argentine military commander, intelligence officer, and naval commando who served in the Argentine Navy during the military dictatorship of Jorge Rafael Videla during the Proceso de Reorganización Nacional (1976–1983). He was known as El Ángel Rubio de la Muerte (the "Blond Angel of Death"), and had a reputation as a torturer. He was discharged from the military in 1998 after defending his actions in a press interview. He was a member of GT 3.3.2 (Task Group 3.3.
https://en.wikipedia.org/wiki/Alfredo_Astiz