The overwhelming sentiment in Vietnam to Quang's death was one of "good riddance" and "he had it coming to him". No one seems to be shedding a tear over his loss outside of his immediate family.
Not clear to this anon what Quang's take on Trump and USA SwampDraining was. Certainly lots of people in the Vietnamese Communist Party were tight with HRC and Hussein and had already started to divide the profits of lots of SwampDeals in expectation of an HRC victory in '16. Tremendous disappointment among those VN SwampCritters with the DJT victory.
The vast majority of Vietnamese believe Quang was murdered by his rival, Prime Minister Nguyen Xuan Phuc, by use of a radioactive poisoning agent.