The reported cause of death changes everything. This case just became much more frightening. If she was killed on her route, there would be blood everywhere. He'd have been covered in it. Dismissing his confession, I'd say he'd been looking for someone to take for awhile now and knew exactly where to hold someone. He drove out there looking for her as he'd seen her before, saw her jogging and kidnapped her, held her for 3 weeks in a location where nobody could hear. The phone and fitbit were destroyed at WC's farm land, on the way to the hiding place, trying to frame him. That poster that talked about WC following him may have been the killer. The pleas to release Mollie didn't sway him. He hated women and took out his frustrations on her.