the murders of galan , a high - ranking police officer , and a journalist all week , were probably carried out by an israeli mercenary charged by the medellin group - the world ' s most powerful drug - dealers mafia - which has laid up paramilitary units charge of hundreds of individual murders and massacres against government and work leaders , as well as peasants and patriotic association revolutionary militants in different parts of the state .
Galan was killed by patriotic union leftist militants.