what the motive was. we hope to learn that later. >> just to give people some perspective here we are on what is a campus of more than 20 buildings, municipal buildings. building 2 is the one directly behind us which is where that shooting took place. we are still waiting for details from authorities about exactly how everything played out. you see the police tape. that constitutes this is still a working crime scene. how much of the activity took place outside and how much of it inside. i do recall hearing from the police chief and mayor talking about this is a public building. >> reporter: yes. >> and while this gunman had a badge and employees have their i.d.s that allow them to be all of these buildings, this is a public building and so entry for citizens, it's open. >> and you do find yourself asking what about all of those rules was he aware of? he probably had a real knowledge of those rules and of, you know,