A federal jury in Manhattan deliberated five hours before returning the verdict against the son-in-law, Suleiman Abu Ghaith, a Kuwaiti imam and al Qaeda spokesman who was captured in Jordan last year.
He could face life in prison. Sentencing is Sept. 8.
“We hope this verdict brings some small measure of comfort to the families of the victims of al Qaeda’s murderous designs,” Preet Bharara, the Manhattan U.S. attorney, said in a statement.
Abu Ghaith, 48, is the top-ranking al Qaeda figure to be tried in the United States since the Sept. 11 attacks. His lawyer promised an appeal.
In a closing argument, a federal prosecutor told jurors that bin Laden turned to Abu Ghaith on the night of Sept. 11, 2001, to make videos that would help replenish al Qaeda’s ranks of suicide terrorists and bring in young men from around the world to help with a “war with America.”
Abu Ghaith said that bin Laden told him that night: “Did you learn what happened? We are the ones who did it.”
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