Sestak and one of his alleged co-conspirators, a U.S. citizen living in Vietnam, were arrested in May. Two others have also been taken into custody. But one of those allegedly involved in the bribery scheme – the wife of another alleged co-conspirator -- remains at large in Vietnam. A warrant has been issued for her arrest.
"This case demonstrates how cooperation with State Department partners in the region allowed the Department of Justice to pursue charges where Vietnamese citizens were victimized by individuals guided by greed," said U.S. Department of State Diplomatic Security Service Director Gregory Starr.
No date has been set for Sestak's sentencing. He faces more than 24 years in prison.