The Bureau of Alcohol, Tobacco, Firearms and Explosives announced it will be offering a reward of up to $15,000 for information leading to the arrest and prosecution of the suspect(s) involved in the arson that happened at around 10:30 p. m. on May 31 at the building for the AFL-CIO building, which is located at 815 16th Street NW. ATF investigators say they’re working with D. C. Arson & Explosives Task Force, including the Metropolitan Police Department and D. C.