"The leopard does not change his spots" is a favorite saying of prosecutors and the rise and fall of Clinton-era conspirator Ng Lap Seng proves the point. Ng cut a colorful swath through the 1996 Clinton campaign finance scandal. At the time, he was a mere millionaire with connections to the Chinese government and Asian organized crime. Now he is a billionaire. Last month, more than twenty years after he first appeared on the U.S. scene, federal prosecutors in the Southern District of New York nailed him in a bribery scheme and put him away for four years.

In the bribery case, Ng showered two United Nations ambassadors—Francis Lorenzo of the Dominican Republic and John Ashe of Antigua and Barbuda—with cash. He needed their support for a multi-billion-dollar UN conference center he wanted to build in Macau. Ng envisioned the conference center as the cornerstone of a grandiose plan to turn the obscure gambling enclave into the "Geneva of Asia," prosecutors said. Ng spent $1.5 million in the illegal effort. He set up a phony NGO and funneled $30,000 a month to Ambassador Lorenzo. More payments flowed to Lorenzo's brother, to Ambassador Ashe, and to Ashe's wife. In return, the ambassadors put a UN imprimatur on Ng's construction plan. They drafted and circulated official UN documents in support of Ng and the Macau conference center.

The case was closely watched in Washington. "Corruption at any level of government undermines the rule of law and cannot be tolerated," said Department of Justice Criminal Division chief John Cronan. "But corruption is especially corrosive when it occurs at an international body like the United Nations. By paying bribes to two UN ambassadors to advance his interest in obtaining support for the Macau conference center, Ng Lap Seng tried to manipulate the functions of the United Nations."

Ng is no stranger to controversy and crime. He has been a major player in Macau for decades. The former Portuguese colony, turned over to China in 1999, was a hub of legalized gambling and prostitution, and a center of money laundering, extortion, drugs and gang wars. Ng cultivated the China connection and rose through the Macau ranks, becoming owner of the Fortuna Hotel, a night club in the gambling district favored by officials of the People's Liberation Army and the organized crime Wo On Lok Triad.