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We had the report of domestic violence against him and in '89 or '90 he was arrested for an arson case in georgia. >> and the last year he was convicted, he booby trapped it and put cement in the pipes and defecating in the rooms. detectives are going through the journal and blogs that he was active in. there is a possibility we may never know what brought him to the movie theater on thursday. there is a mix of grief and anger. we talked to the father of one of the victims and his daughter is a devout catholic and she has forgiven the shooter and she will continue to pray for him. >> thank you...

This point. >> we are joined now by jim cavanaugh, nbc law enforcement expert. jim, what is the standard procedure now on that scene? >> well, they dune active shooter response which sounds like they may have already done lawrence to get to the person or persons shooting and try to engage and stop the activity of course. that means the officers may have engaged with the shoot er and shot him, like we saw in chattanooga last week. or it could be a suicide, murder-suicide type case. we don't know. the officers -- once they get the shooter down if they can determine there are no other shooters th...

Be -- each side is going to persuade them, right? the prosecution he premeditated, he showed up and he had full body armor and a helmet, a neck guard, he had leg protectors, he knew what was going on. he booby trapped the the apartment. but the defense will say he's in a psychosis. how do we know he's not well? because two psychiatrists looked you in the eye and told you so. if you look at that and his family history and own histories you will have no choice, ladies and gentlemen, but to declare he's in sane. that's what the defense will say. as to whether the jurors believe it, that's another...

Legal or factual defense. he put himself in body armor. that shows he's thinking he is doing something wrong. he targeted specific moviegoers as they were leaving the theater. he booby trapped his apartment so law enforcement would get hurt. this is thought-out problems. >> i know in the boston case the prosecution asked the judge please let the family members testify quickly so we can put the fbi agents back on the street no longer protecting the tsarnaev clan. thank you. two former officials linked to governor chris christie appearing in federal court today, charged with shutting down lane...

>> reporter: the prosecution goes first. the district attorney is expected to remind jurors of the horrors of july 2012. he's charged with murdering 12 people at the you aurora 16 center. they say he purchased assault rifles and bomb-making materials. he booby trapped his apartment. the d.a. says in this case justice is done. bill: a tough trial there. the u.s. drone program in the crosshairs after the death of a