The Butler County Times Gazette reported- El Dorado Firefighters were awoken early Thursday morning to a structure fire at the Don’s Heating and Cooling building at 306 S. Main. When firefighters arrived, smoke and flames were visible within the structure. Upon forcibly entering the facility, firefighters were able to subdue the flames. The entire building sustained smoke damage, but a bathroom and two officers were the most heavily damaged. Upon inspection, an investigator determined arson to be the cause of the fire. Citizens are urged to contact the El Dorado Police Department with any information they may have on the case.