Authorities Dan News Today

>> its just a task to get through the front door with all the debris and wreckage there. so were slowly making our way in and we have to go systemically because any missed step on the part of our people could mean they get injured or fall through a floor or have something fall on top of them. >> lets bring in dan simon there in oakland where this all broke out. what is the latest from authorities dan? do they have any leads on what could have started this? >> reporter: well, poppy, first of all,...