CNN CNN Newsroom September 17, 2013 14:34:00
This guy was a contractor, a subcontractor. he didn't work at the u.s. navy yard every day. he worked in many different places. so why choose this particular place? >> well, access -- many crimes are based on a few things and one of them has to do with availability, access, their anger level at this particular time. did someone or something actually trigger this event for him in recent days? and the most dangerous person at work -- i teach this both at the fbi and the american college -- that we interact with in society is called a grievance collector, what kind of grievances did he have? so i...