NORTH RICHLAND HILLS -- A North Richland Hills woman accused of letting her 78-year-old husband die of malnutrition and dehydration surrendered to Tarrant County authorities Thursday night, police said.Lowesta Ann Halliburton, 43, was free Friday after posting $50,000 bail. She is expected to be charged with injury to the elderly by omission, a first-degree felony. If convicted, she faces life in prison and a $10,000 fine.Her common-law husband, Richard Hoye, died May 21 at their home.Halliburton has said that police targeted her because of the couple's 35-year age difference and the fact she is black and Hoye was white.