Embattled Malaysian Prime Minister Najib Razak’s stepson Riza Aziz allegedly spent at least $50 million — from a corruption-ridden state fund — on luxury properties across New York and Los Angeles, the Wall Street Journal reported Wednesday citing documents and sources. The 1Malaysia Development Berhad (1MDB) fund, set up by Najib in 2009, has been at the center of a corruption scandal involving the prime minister.