26 these were later identified as Henry Giovanni Contreras and Julio Roberto Caal Sandoval. e. Judicial proceeding on the murder of Jovito Josué Juárez Cifuentes, Federico Clemente Figueroa Túnchez, Julio Roberto Caal Sandoval and Henry Giovanni Contreras before the Trial Court of Mixco (Department of Guatemala) (case No. 2,782) 86. As the jurisdiction of the Magistrate’s Court had been exhausted, the proceedings were transferred to the Trial Court of the Municipality of Mixco19. 87. This court heard the witnesses, Ana María Contreras and Rosa Carlota Sandoval. 88. Autopsies on the four victims established the cause of death as penetrating wounds in the cranium, produced by bullets from firearms. 89. On June 26, 1999, the court sent an official communication to the Head of the Criminal Investigation Department of the National Police Force requesting him to investigate the criminal acts during which the four young men died. 90. On March 21, 1991, this court received “Preliminary Information” on the opening of the police investigation. This report included: a) the full identification of the four victims (name, age, names of the fathers and their residence, nicknames, status in the criminal files of the Identification Section of the National Police Force, physical characteristics, clothes found on the bodies, and description of the injuries; b) the indication that a 9 mm. caliber shell (“cascabillo”) was found near the body of Juárez Cifuentes and was retained by the National Police Force; c) a description of the testimonies collected by the police investigators, rendered by María Eugenia Rodríguez, Ana María Contreras, Margarita Sandoval Urbina, Rosa Carlota Sandoval, Marta Isabel Túnchez Palencia, Julia Consuelo López de Ramírez, Julia Griselda Ramírez López, Pantaleón Tocay Punay, Gloria Angélica Jiménez Alvarado, Emma Josefina Jiménez Alvarado, Alcira Yolanda Jiménez Alvarado and Rubén Castellanos Avalos; d) the indication of three persons suspected of perpetrating the murders: the National Police Force agents, Néstor Fonseca López and Samuel Rocael Valdez Zúñiga, and Rosa Trinidad Morales Pérez; e) background information on the suspects – the report stated that Valdez Zúñiga had a record for robbery and Rosa Trinidad Morales Pérez had a criminal record for prostitution, sex trade, witchcraft, disorder and drunkenness; and f) the description of the results of three photographic identifications in which Julia Griselda Ramírez López identified Néstor Fonseca López and Samuel Rocael Valdez Zúñiga as those responsible for the crime. f. Judicial proceeding on the murder of Anstraum Aman Villagrán Morales before the sitting Magistrate’s Court for Criminal Matters (Guatemala City) 91. On June 26, 1990, this court ordered the opening of criminal proceeding on the murder of Villagrán Morales, whose identity was unknown at the time. 19. The First Criminal Trial Court opened criminal proceedings on facts that partially coincided with those of this case, based on the complaint made by Bruce Harris. During this proceeding, statements were received from Bruce Harris himself, and from María Eugenia Rodríguez and Gustavo Adolfo Cóncaba Cisneros. The proceedings of this court were subsequently joined with those of case No. 1,712/90 of the Second Criminal Trial Court, which will be referred to below (infra, paras. 93-103).