"We are disappointed with the verdict," Sady said. "We, obviously, thought he was entrapped."
Prosecutors argued that Mohamud was predisposed to terrorism as early as 15 years old. Mohamud traded emails with an al-Qaida lieutenant later killed in a drone strike. He also told undercover agents he would pose as a college student while preparing for violent jihad.
Mohamud was never called to testify. Instead, the jurors saw thousands of exhibits and heard hours of testimony from friends, parents, undercover FBI agents and experts in counterterrorism, teenage brain development and the psychology of the Muslim world.
Assistant U.S. Attorney Ethan Knight told the jury earlier this week that the decision would be easy. Mohamud pressed a keypad button on a black Nokia cellphone and intended to kill people. Whatever else they might think about the methods of undercover agents or the government's decision to investigate a teenager, the underlying decision was Mohamud's and the motivation was hatred of the West.
Sady had argued that Mohamud wasn't radicalized by online recruiters or friends with jihadist leanings, but rather by a Justice Department hungry for convictions that ignored every caution sign along the way. Sady said undercover agents manipulated Mohamud's faith and plied him with praise and the promise of a life leading other jihadis.
"This case has been a difficult case for the city of Portland. It's been a particularly difficult case for Mohamed Mohamud's community, for his family, for the Somali community," said Amanda Marshall, U.S. attorney for Oregon. "We are hopeful that this will bring closure and healing to all of us here in Portland."
Associated Press writer Steven DuBois contributed to this report
Reach reporter Nigel Duara on Facebook at http://on.fb.me/127q7aU