these videos are really at the center of the conversation at this moment. and there are a lot of questions about it. so the dashcam video is where one focus is. we've seen it. there are glitches. there's repetition, duplications. they said that there was a technical issue when they were posting the video. does that satisfy it for you? >> it doesn't really. any really true forensic examination requires available of the original because a number of things can happen in the copying process. it may be inadvertent. it may be intentional. i don't know that anything to do with, say, taking out a telephone call audio would have any effect on video and i certainly don't feel that anything would cause a duplication of video. >> we see a white car come and then go away and a white car show up again. you're seeing the tow truck driver, a duplication where he appears right back at the car again. that's one of duplications we're talking about.