A federal judge has reduced the prison sentence for Abdurahman Alamoudi, who once was one of the nation's most prominent political activists until he was found engaging in illegal transactions with Libya and implicated in a plot to kill a Saudi prince.

Last week, U.S. District Judge Claude Hilton ordered Alamoudi's 23-year sentence reduced by 79 months. The briefs explaining why Alamoudi deserved a shorter sentence remain under seal.

In 2005, the Washington Post reported that Alamoudi's "sentence could be reduced because of his ongoing cooperation with the U.S. government." And he appeared willing to testify on behalf of prosecutors in another terror-finance case. Records in Florida show Alamoudi was moved to the Hillsborough County jail in Tampa, where he stayed nearly four months during the prosecution of Palestinian Islamic Jihad operative Sami Al-Arian. Alamoudi, however, was not called as a witness during the trial.

Alamoudi, former head of the American Muslim Council, has served about seven years already, and with more than six years cut from his sentence, he should be free in less than a decade.