just after midnight, carl pressley responded. normangee, texas, he told the sheriff, where he and his girlfriend lived in a trailer at an rv campground. though normangee is more than three hours from san saba, carl promised the sheriff he would be back by daybreak. >> i think maybe about the time my eyeballs closed my phone rang. it was about 7:00 in the morning. and dispatch told me that carl pressley had showed up to the sheriff's office and sheriff brown needed me up there asap. >> reporter: and so with little or no sleep, deputy wilkerson says he headed back to the office and a face-to-face encounter with the man most likely to know where bonnie harkey was. >>> coming up -- another life in danger? >> he had three knives on him. so i had to do what he said. >> and a dark secret down by the creek. >> all right. >>> here's the thing about lawmen in rural texas. they don't have all the gadgets and gizmos that come with working in a big city. >> it's a different world. you're working with limited budgets. >> reporter: so you have t