PORTLAND -- A jury found Mohamed Osman Mohamud guilty in the 2010 plot to bomb Portland's Pioneer Courthouse Square during a Christmas tree lighting ceremony.
Then-19-year-old Mohamud tried to blow up a van he believed was loaded with explosives at the crowded ceremony. But the bomb was an elaborate fake supplied by FBI agents and the public was never in danger, authorities said.
Background: Portland tree lighting bomb plot
The jury began deliberating Wednesday afternoon after closing arguments were made. The six men and six women reached their verdict Thursday afternoon. He was found guilty on one count of Attempted Use of a Weapon of Mass Destruction.
Prosecutors Wednesday said in closing arguments that Mohamed Mohamud was predisposed to terrorism when he was 15 years old, the age he told undercover agents he began to think about committing violent jihad.
His defense team contends that he was entrapped. In their closing statements his attorneys said Mohamed Mohamud was confused young man.
"This is not somebody sitting around thinking about blowing up Portland," defense lawyer Steve Sady told the jury. "The FBI went too far."
Witness: FBI manipulated bomb blot suspect
Prosecutors brought out the undercover FBI agents whom Mohamud thought were his jihadi co-conspirators. They each testified that Mohamud, 18 years old when they met him, conceived of and helped carry out the bomb plot.
His defense team said Mohamud couldn't have thought of the plan. He even talked openly about violent jihad and privately expressed glee at 9/11, they said, but he had neither the will nor the means to commit terrorism.
Mohamud's age makes him among the youngest ever targeted by post-9/11 stings carried out by the FBI on suspected terrorists. He is now 21.
KGW Reporter Kyle Iboshi contributed to this report.