this is what we know. there was a single wooden staircase in there. there were only two exits located in the building according to the deputy chief there. there was no evidence of sprinklers. no permits for this building to be utilized. no permits for the party. no permits for construction of the property. this was designated as a warehouse. so when you get there and you assess that much, what is your biggest obstacle trying to get to people who are inside? >> well, first of all, offer my condolences to all of the families in this tragedy. >> absolutely. >> some of the obstacles, my understanding, there's a lot of furniture, debris, and trash throughout the building that's made it very difficult for the firefighters in oakland to maneuver inside to provide the life safety techniques they need to do to get those fire victims out. so with so much furniture and other debris and trash in the way, it made it hard for the firefighters to get inside, as well as for the people to get outside of the building.