It was supposed to be her last appointment of the day. When real estate agent Beverly Carter arrived at a home in Scott, Arkansas in September 2014, she planned to show the vacant property to a perspective buyer. But the 50-year-old realtor vanished, leaving a stunned community searching for answers. Police quickly focused on 33-year-old Arron Lewis as their suspect, and they say he led them to her body, which was buried in the concrete plant where Lewis had once worked. A month later, his estranged wife, Crystal Lowery, was also arrested and charged with the murder. Sixteen months later, Lewis...