be part of whether he had canisters of fuel on there or explosives is part of the investigation. how many other offices are in that building besides the irs? i don t have that number. and people said they heard the explosion, and is that possible that is under investigation, and austin police and fbi are investigating that. is the building a total loss? it is extensive damage, but obviously, it will take structural engineers to make that final determination. thank you. do you think the impact was for the irs office specifically? pretty close to it. thank you. and can you tell us about the building well, there is no further danger, and it has been assess bids the engineers and we would not have firefighters in there if we thought there was a danger of collapse. chief, what is the cause of the house fire? it is not released yet and still under investigation. is the house fire being looked at as part of the