matt williams also saw the oliver's castle video that night at the barge. his assessment? it's a fake. and he has a theory on how it was done and who did it. >> the oliver's castle video was created by a guy who worked for a television company. he created this in his cgi computer editing suite. >> adding to the mystery, the man disappears before anyone can ask him if he faked the video. >> what you would have needed to do to fake the video is obviously get footage of the formation. now, we know that formation was not there the day before. so he would have had to have taken the footage that morning. how did he know it was going to be there? did he know who made it? did he make it? that has never been nailed down. he would have then had to have rushed the footage back and then added on the balls of light. now, that's going to take time to marry up these two things and