the assassination of galan , a high - grade police officer , and a judge last week , were possibly carried out by an israeli assassin paid by the medellin cartel - the world ' s most powerful drug - trafficking conglomerate - this has setting up commando squads capable of thousands of isolated executions and massacres against political and military leaders , as sure as peasants and national labor leftist militant in different parts of the city .
Galan was killed by patriotic union leftist militants.