20 had not been destroyed by burning were found in the second graves discovered in Huachipa: namely, half of the skeleton belonging to Dora Oyague-Fierro, and the complete skeleton of Luis Enrique Ortiz-Perea.” The experts inferred that the execution of the alleged victims took place the same day of the abduction, at dawn. This has been confirmed after the statement of those indictees that availed themselves of the “Colaboración Eficaz” Program (Effective Co-operation). He prepared press releases “because the case belonged to the public domain and as a way of protecting his investigation and [his] work, considering that by that time, the political power had influence on the judicial power..” After confirming the possibility of carrying out DNA testing on some of the remains, the possibility of doing them in the United States and Japan was taken into account, although finally they decided on Great Britain. Doctor Escalante, expert in genetics, stated that the tests on eight bones would cost fifteen thousand dollars. In August 1993 the same doctor informed that, “he would not be able to conclude the necessary steps.” Afterwards, as the cost of the tests was higher, only one bone could be analyzed; the outcome was consistent with the genetic code of Felipe FloresChipana. While being in charge of the investigation conducted by the prosecution office, he felt threatened by “hooded people in vans [who encircled his home.”] i) Edmundo Cruz-Vilches, journalist of the weekly magazine “SI” at the time of the events He knew about the disappearance of the students of La Cantuta through his journalistic activity. He obtained information about the Grupo Colina (Colina Group) and one of its most relevant operations, the disappearance of the professor and nine students from the La Cantuta University, between December 1992 and October 1993. The magazine “SI” received, through a member of the Congress, “a sample of human bone remains stating it belonged to a missing person of La Cantuta, and a sketch describing the place were they could supposedly be buried.” These elements led to the discovery of the graves of Cieneguilla. After said discovery, an investigation on the case of La Cantuta was started by the prosecution office. Afterwards, a member of Grupo Colina (Colina Group) got in touch with him and with another journalist of “SI” magazine, named José Arrieta-Matos. Through the information provided by that person, they could get to the graves of Ramiro Priale, where the alleged victims had been first buried. He had to face several obstacles in the course of the investigation. In fact, “the Congress of the Republic approved, by the vote of a broad majority, a resolution whereby they requested the Home Affairs Office to provide police protection to the three journalists of the magazine “SI” who had made the discovery.” During the press investigation on the Grupo Colina (Colina Group), they were “threatened through the telephone, they were followed and their telephones were bugged. In the case of La Cantuta they were accused of serving as instruments of Sendero Luminoso (Shinning Path) [and] members of the Intelligence Service [requested prosecutor Cubas] to include [the witness] in the investigation as accused” but the prosecutor rejected the petition.