Robertson County officials are investigating a deadly fire that destroyed a home Tuesday night.Officials told Nashville's News 2 the home caught fire around 7:40 p.m. on Buzzard Creek Road in Cedar Hill.Robert Gupton of the Robertson County EMS reported that 75-year-old William Walker was killed in the blaze. According to Gupton, Walker and another person inside the home were cooking fish on the stove when the grease caught on fire. It is believed Walker attempted to put the fire out himself before he was overcome by smoke and heat.The other person inside the home was able to escape. Crews on the scene said the house is a total loss.Robertson County Rescue and EMS, the North Robertson Fire Department, and the Adams Fire Department all assisted in fighting the blaze.Crews remained on the scene as of 6:30 a.m. Wednesday, monitoring hotspots.No further information was immediately released. Robertson County crews responded to a second, suspicious house fire early Wednesday morning. The fire was reported around 4:30 a.m. at a home in the 1700 block of South Walker Road near McMahan Hollow Road in the Coopertown area.According to Cpt. Trey Nelms of the Pleasant View Fire Department, No contents were inside the home. When crews arrived heavy smoke and flames were coming from the home. Crews worked to keep the fire from spreading to the neighbors' home.The home is likely a total loss. No one was injured.The cause was not immediately known.No further details were immediately released.