Philippines whistleblower Lascanas: I killed my own brothers

Former police officer Arturo Lascanas says he personally killed people as a member of a death squad in Davao, run by now-president Rodrigo Duterte.

After speaking out he was protected by the Catholic Church - a body that has become increasingly vocal of Mr Duterte's war on drugs.

Video by Rebecca Henschke and Haryo Bangun Wirawan