Former Senator Leila de Lima on Monday during the House Committee on Human Rights hearing said ex-President Rodrigo Duterte is behind the killings during the war on drugs during his term.<br /><br />GMA News Online contacted Duterte's camp, particularly former executive secretary Salvador Medialdea, to get the former President's comment but has yet to receive a reply.<br /><br /><br /><br /><br /><br />