State Police in Kentucky have charged a woman in a house fire that left her 3-year-old nephew dead.Thirty-seven-year-old Amanda Brock of Coldiron was being held on $100,000 bond Sunday at the Harlan County Detention Center on charges of second-degree manslaughter and wanton endangerment. Jail records didn't indicate whether she has an attorney.Trooper Shane Jacobs says in a news release the fire broke out Saturday night at Brock's home.The statement says Brock's 11-year-old son was babysitting the 3-year-old while she went to watch go-cart races in Letcher County. The house caught on fire after she left and the 11-year-old ran to a neighbor's house for help. Firefighters found the 3-year-old's body inside Brock's home.The cause of the fire wasn't immediately determined. The boy's body has been sent to a medical examiner.