Question: Jorge Julio López disappeared after testifying against the Argentine police officer who worked in what force during the 1970s?
Sentence (from "Disappearance of Jorge Julio López"): Jorge Julio López (born 1929, in Buenos Aires Province, Argentina) is an Argentine retired bricklayer, who was kidnapped during the National Reorganization Process, and disappeared again during the democratic government of President Néstor Kirchner after testifying in trial against Dirty War criminal Miguel Etchecolatz.
Relevant evidence: Yes