Osama Bin Laden's son-in-law, Suleiman Abu Ghaith, was sentenced to life imprisonment Tuesday after a U.S. district judge found he acted as the voice of al-Qaeda and one of those responsible for the Sept.11 attacks.

U.S. District Judge Lewis Kaplan rendered the sentence right after Abu Ghaith made a statement that had to be translated via an interpreter since he spoke in Arabic.

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In his statement, Abu Ghaith, 48, said he would not ask mercy from anyone but God and quoted the Koran.

He added that at the very moment his hands will be shackled and is to be buried alive, the action will be unleashing the "hands of hundreds of Muslim youths and they will join the rally of the free men."

In response, Kaplan said Abu Ghaith showed no regret in a video where the suspect was seen amused by the attack that killed over 3,000 people.

One of the videos goes way October 2001 with Abu Ghaith seen promising that the storm of airplanes will not stop. It was used to indicate Abu Ghaith knew about the planned attacks at the twin towers in New York.

A federal jury from Manhattan found out in March he was part of a conspiracy to kill Americans. He also provided material support to the terrorists who responsible for the attacks during the 9/11 bombing.

Abu Ghaith was said to have been the spokesperson for the al Qaeda days after the 9/11 attacks and that he recorded stirring videos in to recruit more members.

Abu Ghaith did admit that he met his father-in-law in an Afghan cave on the day of the attack.

He said bin Laden told him they were the ones who did it. The first video he ever made was a request of bin Laden, but he claimed he was not a member of the militant group.

Assistant U.S. Attorney John Cronan, who was also in attendance, said that Abu Ghaith was a proud member who had a hand in the conspiracy against Americans and that bin Laden relied heavily on him, opposing Abu Ghaith's claims.

Abu Ghaith's lawyer, Stanley Cohen, noted that his client was only guilty of provocative speeches, but not enough evidence could be linked to him regarding the plots that the al Qaeda group planned.

U.S. Attorney Eric Holder commented on the trial saying that this is another case that proves anyone who threatens America and its people will always be held accountable.

TagsSon-in-law, osama bin laden, Al-qaeda, 9/11 attacks, life in prison, sentences, Manhattan jury, Sulaiman Abu Ghaith