at the landscaping garage on the day he supposedly left her and the kids. the detective was stunned. that earlier sighting of kevin alive and well in town, had it been a mistake? how long had she been lying to police? >> i'm floored. i'm like, why didn't you tell me this? when your boyfriend tells you that he hit your husband in the back of the head with a shovel, you call the police. >> are you trying to protect steve? >> not at this point. >> morgan said that steve had only just revealed to her what he had done, but the detective suspected he wasn't getting the full story. hoping to trip her up he asked her to write down a timeline of events for the week kevin disappeared. >> you going to write it down? >> uh-huh. >> most of what she wrote stuck to the story, but this was a strange detail. >> she writes snapple on one of her statements. i said what does snapple mean?