oaths unanimously find having considered all of the facts and circumstances that the defendant should be sentenced -- no unanimous agreement. signed foreperson. is this your true verdict, so say you one and all? >> yes. >> now, that took less than two hours to decide that arias was exceptionally cruel. arias stabbed him 29 times, slit his neck from ear to ear, shot him in the face. now, in the penalty phase, arias took the stand, pleaded for her lives. she told jurors she could make a difference in prison. we'll talk about it now with cnn legal analyst and former prosecutor sonny hostin. mark is the author of the book, mistrial, how the criminal justice system works. and sometimes doesn't. let's start, though, with cnn ted rollins who was in the phoenix courtroom and ashley