"Cleanse your ranks. Review their cases. Give me a list of who the scalawags are," Duterte said in a press conference late Sunday night.
Last week, Duterte apologized to South Korean investors and South Korean Ambassador to the Philippines, Kim Jae-Shin, for the murder of Jee Ick-joo and promised swift retribution.
"I am very sorry for that sordid incident. But I can assure you; policemen -- I will not let you get away," he said according to CNN Philippines.
