The half-brother of North Korean leader Kim Jong Un was carrying $100,000 in cash in his backpack at the time of his murder, the police officer investigating the case told a Malaysian court on Wednesday.

Indonesian Siti Aisyah, 25, and Doan Thi Huong, 28, a Vietnamese, are charged with murdering Kim Jong Nam by smearing his face with VX, a chemical poison banned by the United Nations, at Kuala Lumpur airport on Feb. 13.

The money is now stored in a safe in the office of the police chief of the Sepang district, which has jurisdiction over the murder site, police official Wan Azirul Nizam Che Wan Aziz said.