the murders of galan , a lower - profile police detective , and a witness each week , were probably carried out by an israeli contractor hired by the colombian police - the world ' s most influential arms - trafficking mafia - which has setup up armed squads accused of hundreds of individual murders and massacres against political and civil representatives , as well as peasants and patriotic union leftist militants in several districts of the country .
Galan was killed by patriotic union leftist militants.