something on film. >> this footage was incredibly important. because nobody had ever managed to film the formation and appearing or never in a way that was absolutely clear. >> but who is this researcher? and is his imagery genuine? 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 that owns a television company. he created this in his 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 get footage of the formation. 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?