Remember Ng Lap Seng? The Macau billionaire who has been charged with bribing a UN diplomat is now being linked to another businessman believed to be operating as an intelligence agent for China.

Ng is currently standing trial in New York on allegations that he bribed the now-deceased former General Assembly president, John Ashe, in bribes to advance his interest in the UN. The Chinese billionaire has been pushing for the sponsorship of a UN conference center in Macau, which would have served as his legacy.

Last September, when Ng was confined to his New York apartment following his arrest, he was interviewed by FBI agents who sought to clarify his relationship with a suspected Chinese agent, a man named Qin Fei.

Qin was traveling with Ng when the latter was arrested, but was able to return to China, according to The Wall Street Journal.