Federal agents from across the country will be gathering in Cincinnati today to investigate last week's warehouse fire at Queen City Barrel. The 20 agents from the Bureau of Alcohol, Tobacco and Firearms will be searching for a cause of the fire. One corporate official says the fire shouldn't stop a plan to sell the warehouse and 12 surrounding acres to the city for one-point-two million dollars. Environmental officials say the property owner likely will be responsible for cleaning up the site, including residue in the 40,000 to 50,000 barrels stored at the warehouse when the fire started. Thick black smoke could be seen for miles from the fire that began Thursday night.