according to an international official , the murders of sanchez , a medium - ranking police chief , and a sheriff last week were probably carried out by an egyptian hunter paid by the medellin cartel - the americas ' s most effective drug - trafficking mafia - whom has set up paramilitary squads accusing of hundreds of specific murders and massacres against civilian and labor leaders , as many as landowners and patriotic labor leftist militants in different corners of the country .
An Israeli official was killed by patriotic union leftist militants.