When 27-year-old Laura Ackerson from Kingston, North Carolina, goes missing – not showing up for work, not answering phone calls and failing to pick up her children at custody exchange – her friends and family begin to panic. Police launch a cross-country investigation that leads to a rural muddy creek in Texas and uncover a trove of evidence and troubling surveillance video.Police eventually make a gruesome discovery in the murky waters of Oyster Creek—Laura's dismembered human remains. The father of her children, Grant Haze, becomes one of the prime suspects as does his wife, Amanda. Police question both of them who point fingers at each other – leading authorities to question who killed Laura. "20/20" speaks with Grant; Amanda's adult daughter, Sha; friends and acquaintances of Grant and Laura, as well as law enforcement and prosecutors involved in the case.