The son-in-law of Osama Bin Laden has been convicted of conspiring to kill Americans by serving as al Qaeda's spokesperson following the 9/11 attacks.
The jury in New York has returned a guilty verdict against Suliman Abu Ghaith on three charges.
They include conspiracy to kill Americans, conspiring to provide support to al-Qaeda and providing support to al-Qaeda.
The convictions carry a potential life sentence.
Sentencing is set for September 8th.
Abu Ghaith's court-appointed lawyer, Stanley Cohen, says they will appeal.
"From the very beginning, this case was wrapped in a shroud of secrecy and an inability to get access to people. It continued throughout right up to Khalid Sheikh Mohammed."
Khalid Sheikh Mohammed is the man accused of masterminding the 9/11 attacks.
Abu Ghaith, a 48-year-old Kuwaiti-born preacher, is the highest-profile bin Laden adviser to face trial in a U.S. civilian court since the September 11th attacks.
Testifying in his own defense during his three-week trial, Abu Ghaith denied he knew of any plots against Americans or ever became a member of al-Qaeda.
Abu Ghaith is married to bin Laden's eldest daughter Fatima.
She is one of nearly two dozen children bin Laden is believed to have fathered before he was killed in May of 2011.
Abu Ghaith was captured in Jordan last year.
