119 proceedings ineffective. The arrest of Orlando de Jesús Mazo Pino, who has been convicted, is also still pending (supra para. 125(52)). 304. During these ten years, the results of the criminal investigations concerning the La Granja massacre indicate that 16 people were investigated, one of whom was a member of the Army – Jorge Alexander Sánchez Castro – and another a member of the National Police – José Vicente Castro. Of the 16 people investigated, four have been convicted of the facts (supra para. 125(51)). 305. Specifically, on July 8, 2005, the First Criminal Court of the Antioquia Specialized Circuit sentenced Orlando de Jesús Mazo, a civilian, to 12 years’ imprisonment for the crime of conspiracy to commit a crime, terrorism and extortion; Gilberto Antonio Tamayo Rengifo, a civilian, to 12 years’ imprisonment for the crimes of terrorism and extortion; Carlos Antonio Carvajal Jaramillo, a civilian, to 72 months’ imprisonment charged with conspiracy to commit a crime and extortion; and Jorge Alexander Sánchez Castro, Army Captain, to 31 years’ imprisonment for aggravated murder and conspiracy to commit a crime (supra para. 125(51)). The Court observes that Carlos Antonio Carvajal Jaramillo’s sentence was suspended “owing to his age.” According to the useful evidence presented by the State in its final arguments brief, that ruling was appealed. At the time this judgment is delivered, the Court has no information on this recourse or its results. 306. Of the other people convicted, only two of them have been imprisoned – the former officer, Jorge Alexander Sánchez Castro, and the civilian, Gilberto Antonio Tamayo Rengifo – one sentence was suspended and the arrest of the fourth persons who was convicted is still pending. 307. Regarding the other State agent investigated in relation to the events of La Granja, Police Lieutenant José Vicente Castro, the Court observes that he was convicted on November 14, 2003, and absolved on appeal by a decision of the Criminal Chamber of the Antioquia Superior Court of July 2, 2004, which considered that the first instance’s assessment of the evidence was too generalized, which meant that the culpability of the accused had not been proved sufficiently. Furthermore, it excused the failure of the Police to intervene adducing that the lack of logistic and human resources to deal with the announced incursion had been proved. The Court has taken note of the comment by Colombia in its final arguments brief that, on September 2, 2005, the State filed an “action for review” of the appeal judgment that absolved José Vicente Castro, for the Supreme Court of Justice to take a decision on a new trial for the events that occurred in La Granja. 308. The existence of an unjustified judicial delay can be observed in the investigations into the events of La Granja. In this regard, the Court notes that, although certain measures were taken during the preliminary inquiry into the facts (supra para. 125(42)), the National Human Rights Unit of the Prosecutor General’s Office only decided to open the pretrial investigation on June 17, 1999; that is, more than three years after the facts occurred. The First Criminal Court of the Antioquia Specialized Circuit itself noted in its judgment of July 8, 2005, that the investigation was opened in June 1999, “taking into account that the preliminary inquiry began on June 12, 1996, and ‘as of that time significant indications existed in relation to specific individuals.’” 309. The Court finds that the proceedings and procedures in relation to the events of La Granja were not implemented regarding for due process of law, within a