SANTIAGO, Chile - (AP) -- Chilean authorities on Tuesday reenacted the killing of a U.S. filmmaker whose execution shortly after Gen. Augusto Pinochet's
  bloody 1973 coup became the basis of the film Missing.

  Reporters were kept at distance, but the firing of blanks was clearly heard coming from the dressing-room area at Santiago's national soccer stadium,
  where Charles Horman was said to have been killed and the reenactment took place.

  The reconstruction was led by Chilean Judge Juan Guzmán, who has sought unsuccessfully to try Pinochet on human rights charges. It was part of his
  investigation of Horman's case.

  Sergio Corvalán, a lawyer for Horman's widow, Joyce, called the procedure ``extremely important for the investigation.''

  ''Witnesses were able to provide key information on what happened at the stadium, the questioning and torture systems, the internal organization,''
  Corvalán said.

  Among the witnesses was Adam Schecsh, now an academic at the University of Wisconsin, who also was detained at the stadium shortly after Pinochet
  seized power on Sept. 11, 1973.

  Schecsh would only say that his return to the stadium was an emotional moment. Schecsh and his wife were detained in the stadium for eight days
  beginning Sept. 14, 1973, Corvalán said.

  The stadium was used as a detention camp after Pinochet toppled Marxist President Salvador Allende. According to an official report by the civilian
  government that succeeded Pinochet, hundreds were detained and tortured there. At least 48 were executed, including Horman and other foreigners.

  The Horman case was the subject of the 1982 Costa-Gavras film Missing starring Jack Lemmon and Sissy Spacek.

  Guzmán last year was authorized by the Supreme Court to submit a questionnaire to former Secretary of State Henry Kissinger and other retired U.S.
  officials as part of his inquest.