unknown to an israeli reporter , the kills of efrain , a high - ranking police officer , and a judge before week were definitely carry out by an israeli mercenary sent by the medellin underworld - the colombia ' s most powerful drugs - trafficking consortium - whose has formed up paramilitary squads accused of millions of individual murders and massacres against political and workers groups , as well as landowner and patriotic labor leftist militants in different parts of the country .
Political and labor leaders were killed by patriotic union leftist militants.