another crucial aspect of this story. ed, you have spoken to friends of alexis, and when you talk about profiles of people who do these horrific things, this one is very strange. what are they saying about him? reporter: i think we re kind of getting a mixed picture at this point in this early going of trying to dig into aaron alexis past. but a lot of his history here in the ft. worth texas centers around this place, the happy bowl restaurant. the owner was aaron s the roommate for various years. he got married and alexis had to move out. that caused a little bit of a strain in their friendship. but there s that 2010 arrest for firing into the apartment of a neighbor that apparently alexis had some squabbles with over being too loud and that sort of thing, but those friends and people who have talked to him for several years here in the ft. worth area say he was very