Father Flaviano "Flavie" Villanueva. Photo: Supplied / AJ Kalinga Foundation
In a shocking and swift turn of events, last month former Philippine president Rodrigo Duterte was arrested by the International Criminal Court over alleged crimes against humanity during his brutal war on drugs.
He is the first Asian former head of state to be indicted by the ICC - and the first suspect to be flown to the Hague in three years.
Duterte rose to presidency in 2016, campaigning on ridding the country of drugs by killing those who used them.
Under his direction, there was a wave of extrajudicial killings with the official death toll standing at about 6,000, although rights groups argue the real number of victims is much higher.
Former drug addict turned Catholic priest Father Flaviano Villanueva has long been an outspoken critic of Duterte.
Known as Father Flavie, he runs the AJ Kalinga Foundation, which focuses on providing dignified and holistic care for those struggling with substance abuse.
Teaming up with forensic pathologist Dr Raquel Fortun, they collected evidence of the extrajudicial killings.
He speaks to Mihi about the long journey for justice that came at a cost for those who spoke out against Duterte.
