Stoner's Crossing by Judith Pella

Nineteen years ago, Deborah Stoner stood on the gallows of Stoner's Crossing, Texas, awaiting execution for the murder of her husband. Miraculously she escaped... but now the past has caught up with her, and history threatens to repeat itself. And this time the stakes are higher. She could lose not only her life, but the love and respect of her daughter Carolyn as well.