deleted footage from that burger king surveillance camera that may have captured moments leading up to the shooting. >> there was 83 minutes of video that was missing. >> reporter: the prosecutor insisting that the tape was not tampered with. there's been a lot of talk about that video at the bugger kinu. they've analyzed it and believe none of the files have been deleted that would have shown anything and that the cameras weren't actually pointed towards the shooting. a lot of conversation in this community about what's next and whether or not there was a cover-up. >> still so many questions today, ryan. thank you. now to a major shift for the obama administration in its strategy for fighting isis. defense secretary ash carter telling congress more u.s. special forces will be deployed to conduct raids in iraq and syria. cnn's barbara starr is live at the pentagon. she has the latest for us. barbara? >> reporter: good morning, alisyn. a couple dozen special forces backed up with helicopters and other support units, a total of about 200 u.s. troops.