e . s . district judicial leola brinkema refused would - be hijacker zacarias moussaoui ' s guilty pleas on six charges of conspiracy made against him for his plot to participate in the sept . 11 attacks . marri , but had to be restrained at one minute during the trial in an alexandria , virginia courthouse , was polite and quiet during the day ' s appearance .
Moussaoui participated in the Sept. 11 attacks.