According to The Associated Press, the Portland terrorism trial of a man accused of trying to blow up a bomb during an Oregon Christmas tree lighting ceremony is set to begin. The AP reports that Mohamed Mohamud’s trial will begin with jury selection on Thursday in Portland’s federal courthouse.

OPB reports that a last-minute email may become evidence in the terrorism case. According to prosecutors, they were preparing a witness when they stumbled across an email that was not part of the case file.

“Given [Mohamud’s] fear of police finding him with something illegal, and his frequent marijuana use, he might be an ideal candidate” to approach, read the email between an FBI agent and a colleague in October 2009.

Mohamud was arrested in November 2010 for allegedly attempting to blow up a car bomb at a busy Christmas tree-lighting ceremony in Portland, OR. The public was in no danger at any time, however, because the accused’s actions were planned and coordinated by a FBI sting operation.

This case is an extremely important case for future and current terrorism cases due to the entrapment argument that the defendant’s team is planning to use. According to The Wall Street Journal, the defendant’s team made it clear in pretrial hearings that they will try to present Mohamud as an impressionable youth manipulated by the FBI to commit a crime.

“There is a growing skepticism about these terrorism stings,” Ramzi Kassem, a law professor at the City University of New York School of Law in Queens, told The WSJ. “The Mohamud trial is important because the facts in the case starkly highlight what has been troubling about many of these sting cases all along: the expansive role of government agents and informants.”

The WSJ notes that there are several other domestic-terrorism cases that could be impacted by the outcome of the Portland terrorism trial. These trials also involved terrorism stings. One of the cases involves a naturalized U.S. citizen from Albania who is accused of trying bomb nightclubs in Florida in 2012.