Castillo had “a purely […] working” relationship with that refugee. Coincidentally, the other employee of the Vicariate “interviewed” three days later, gave the same information. 55. On September 8, 2003 the Office of the Attorney General instructed the 83rd Prosecutor’s Office to assist in the investigations. 56. On September 10, 2003 Mrs. Moreno was interviewed and provided information that enabled the CICPC to prepare an artist’s sketch of a suspect. During the interview, Mrs. Moreno mentioned, inter alia, that in the days leading up to the death of her husband, he had not received threats and had not felt that he was being followed. She denied that, “in his work [Mr. Castillo] ha[d] been involved in any important case that would put his life at risk.” She said that “the only [threatening] call that [they had] received was three years [earlier] to [her] husband’s cell phone, whose number [she could] not recall.” Mr. Castillo had told her that a man’s voice had warned them “not to be pajúos [informers] and stop defending human rights.” Moreover, on September 10, 2003 Mrs. Moreno requested “that the Public Prosecutor’s Office request measures of protection in [her] favor and [for her] family, given that she was very fearful due to the events” that led to Mr. Castillo’s death. 57. On September 10, 2003 the Assistant Police Commissioner of the Machiques office of the CICPC received a phone call from a person who fear [ed] reprisals [and] reported […] that [...] the recent murders in [the] area, including [...] that of [Mr.] Castillo […] had involved members of a paramilitary group from the border city of Cúcuta, [... who drive around] in a burgundy coupe, Cherokee pickup truck, […] around the town of Machiques. 58. According to this report, the caller identified the vehicle’s registration number and named four of the people who, he claimed, belonged to the “paramilitary group”. That same day, the investigators carried out a number of inquiries to verify the information received by the Assistant Commissioner: they place the vehicle under surveillance and saw three unidentified individuals get into it. They also contacted the person registered as the owner of the vehicle who, according to the information gathered by the investigators, had reported a theft, but said he “had never owned a vehicle” of this type. Then, on September 16, 2003, a technical expert examined the vehicle and found that the security and chassis serial numbers were false. Three years and ten months later, on September 26, 2006, an official letter was issued containing an expert report on the “license plate or registration” of the truck, which concluded that it was “authentic.” 59. Furthermore, on September 12, 2003 information was received that four people had been arrested “in an operation by the Police of Villa del Rosario,” among them the alleged passengers of the aforementioned vehicle. These individuals were “interviewed” and identified. One was an alleged paramilitary, Emer Humberto Terán Méndez (hereinafter “Mr. Terán” or “alleged paramilitary”), and another a National Guard, Edgar Alfonso González (hereinafter “Mr. González” or “National Guard”). These two individuals mentioned the involvement of paramilitary groups and state agents in the killing of Mr. Castillo. The alleged paramilitary, a Colombian national, stated that […] the guerrillas no longer have anyone to give them legitimacy, that man [Castillo] was on our target list [… i]n all, there are around 20 people on the list targeted for elimination, because they were against honest people who are cattle ranchers in the area [,…] the Mayor of this city [Machiques] is aware of their presence, as are several leaders of Gadema [(Ranchers of Machiques)] – their main contacts are with an intelligence unit of the National Guard. 16