Goldman’s Most Notorious Banker Turns Star Witness in 1MDB Trial

Almost four years after pleading guilty for his role in the 1MDB scandal, Goldman Sachs Group Inc.’s former Southeast Asia chairman, Tim Leissner, is about to speak publicly for the first time.

Leissner is expected to be the star witness in the U.S. government’s case against his former subordinate Roger Ng, the only Goldman banker to go on trial for the multibillion-dollar bribery scheme. Opening statements are scheduled to begin Monday in Brooklyn. Each man faces the possibility of decades in prison for their work together.

Leissner pleaded guilty in August 2018 to a count of conspiracy to violate ...