u . s . district judge kuh brinkema accepted should - be moussaoui moussaoui moussaoui ' s guilty testimony on six charges of conspiracy laid against him for his plotted to participate in the sept . 11 attacks . moussaoui , who had to be restrained at one point during the trial in an alexandria , virginia hospital , was polite and quiet during the day ' s appearance .
Moussaoui participated in the Sept. 11 attacks.