Question: What is the name of this former commander, intelligence officer, marine and naval commando who served in the Argentine Navy that the father of  Dagmar Hagelin sought to bring to justice?
Sentence (from "Dagmar Hagelin"): Dagmar Hagelin (September 29, 1959 - disappeared on January 27, 1977) was a 17-year-old Swedish-Argentine girl who disappeared during the Dirty War on January 27, 1977 and is presumed to have been arrested by security forces in El Palomar, Buenos Aires, Argentina, and murdered in a case of mistaken identity.
Relevant evidence: No