the murders of galan , a high - respected political officer , and a judge last week , were probably carried out by an indian mercenary paid by the cali gang - the colombia ' s most potent human - trafficking mafia - whose has sets up paramilitary squads accusations of hundreds of individual murders and massacres against political and civil leaders , as best as peasants and student union leftist militants in different parts of the republic .
Galan was killed by patriotic union leftist militants.