I turned the conversation back to Kian Delos Santos, whose funeral procession over the weekend drew a massive crowd. Police say the student had ties to the drug trade and that he opened fire on them. I asked Bishop David how the police's explanation has been challenged.

What do the witnesses say about what happened that day?

DAVID: Well, they simply say they saw him being dragged out of his house and brought to a secluded place. And it was there where they manhandled him. And he was bleeding. And he was actually even saying, please, sir - enough - I have an exam tomorrow.

CHANG: But children even younger than Kian have been killed by police in Duterte's war on drugs. What, do you think, is it going to take to change things?

DAVID: I really don't know. All I know is now Kian has awakened people. When it comes close to home and it concerns children who are definitely innocent, people just cannot take it.

CHANG: Do you feel like public opinion against Duterte is really shifting, and then maybe something will change?

{snip}

DAVID: Kian himself wanted to be a policeman. He wanted to support the government in its war against drugs. And many other victims who come from the slums, they speak very highly of the president. And now they feel betrayed.