Ten police officers have been arrested in Colombia on suspicion of involvement in the killing of three youths. The three were shot dead while in police custody in northern Sucre province on 25 July. A police colonel, the highest-ranking officer suspected in the case, is on the run and thought to be abroad. Prosecutors say the policers officers had alleged that the youths were members of the Gulf Clan criminal group that had earlier shot dead a policeman. Colombia has a dark history of “false positives” – cases in which civilians were murdered by the military and passed off as rebels to boost its kill rate. An inquiry found last year that Colombia’s military killed more than 6,400 people between 2002 and 2008 and falsely labelled them as enemy combatants.(BBC)…[+]