without someone going with me. but i think she really wanted to see scott and she would've done just about anything maybe. >> it was truly amazing what they were telling me. >> it had taken more than 20 years, but police had finally stitched together a timeline for what was certainly cindy's final weekend. the bait, a chance to be with the puppy love boyfriend scott, the boy's father waiting in his white van at the dairy queen. >> i remember him specifically saying to her on the phone, this was one of the conversations she told me about. that he didn't understand why ed zarzycki would ground her from walking home from the mall because it was no big deal. i think he was trying to make her feel comfortable with him. >> the story told by both girls, now adults, absolutely floored mac. various cops over the years, even mac had talked to them, but somehow didn't hear it or didn't extract it, or maybe it wasn't offered in the same way. despite his excitement, mac had one nagging question.