In July 2010, a retired couple embarked on a road trip in their RV from Alberta to British Columbia. When Lyle and Marie McCann didn’t arrive to meet up with family at a set date and time, their loved ones were frantic to find them. Two days after they set out, their charred motorhome was discovered. But their remains were never located. As Jayme Doll reports, the mysterious and complex case is full of many legal twists and turns.