they talked to their friend dawn lavender. had plans to go shopping with teresa the morning of the murder. >> i'm sure dawn was upset and shocked by what happened. >> she did cry during the interview. she was at her house waiting on teresa to come pick her up because she was going to ride with her. she finally got the chance to talk to teresa around 7:00. >> after that call, nothing. dawn told the investigators she phoned teresa over and over and each time the phone went to a recording. just to be sure of all this, they pulled teresa's cell phone records and plotted out a timeline of her whereabouts. but the picture the records painted wasn't quite what they expected. that morning call to scott, the one he couldn't hear, teresa did not call from moundville. >> cell tower shows it's pinging from up in tuscaloosa. >> wait a minute. how could it be pinging from tuscaloosa? that's miles and miles away. >> right. there's no way she could have made the call and been back to the location where she was murdered at. >> courtesy of the c

they talked to scott and teresa's friend, dawn lavender, who had plans to go shopping with her the night of the murder. >> i'm sure dawn was shocked at what happened. >> she did cry during the interview and at her house waiting on teresa to pick her up and going to ride with her. she finally got a chance to talk with teresa around 7:00. >> after that call, nothing. >> dawn told investigators she called teresa over and over and each time the phone went to a recording. just to be sure of all this they pulled teresa's cell phone records and began plotting a timeline of her whereabouts. the pictures the records painted wasn't quite what they expected. that morning call to scott, the one he couldn't hear, teresa did not call from moundville. >> the cell tower shows it's pinging up in cuss kalousa. >> wait a minute, how could it be pinging from tuscaloosa? that's miles and miles away. t tuscaloosa. >> the cell phones she could not besing that phone, it had to be somebody using her phone and what do you know, the phone is missing from the crime scene. >>> so the very person who killed teresa mu