Walker house fire kills girl, 4, critically injures brother

CHICKAMAUGA - A 3-year-old boy remained in critical condition Friday at an Ohio burn center after suffering burns in a Walker County house fire that killed his 4-year-old sister. <br> <br> Garrett Whaley had second-and-third degree burns over 40 percent of his body after a fire broke out in the house early Thursday. His sister, Morgan Whaley, was found dead when firefighters arrived. <br> <br> The children&#39;s mother, Holly Whaley, and her boyfriend, Curtis Smith, had climbed out a bedroom window to safety, Walker County Fire Chief Randy Camp said. Smith tried to go back in the house and authorities handcuffed him for his own safety. <br> <br> Garrett was transported to T.C. Thompson Children&#39;s Hospital in Chattanooga, Tenn. and later to the Cincinnati Shriners Hospital in Ohio. <br> <br> Camp said the fire apparently was caused by a heater in the hallway. The heater was expected to be sent to the insurance company for inspection. Camp said the house did not have a smoke alarm.