company, forensic video solutions to analyze the surveillance video. the first thing that the attorneys and the family were concerned about, they didn t see a time stamp but you found one. yes. how? the time stamp is in another stream of video, so you have to be able to access it using special codes, so you have to know where to find it but it s there. once the time stamp is located, you can begin to make sense and track people. reporter: by piecing together the time code s, his team found more than 18 minutes of surveillance showing kendrick on january 10th, starting at 7:31 a.m. as he entered school, ending the last time he was seen alive at 1:09 p.m. in the gym. the motion video that we re looking at here and the fact that we skip time periods when there is no motion is very common. so i m not really concerned about that part of it. reporter: but what about the blurred image, the only angle that shows the corner where kendrick johnson was found dead?