Do you think that's MJ's ghost?

I think it was something that CNN felt they had to give a weird explanation about it. I just do not get their explanation at all and to me it made no sense: CNN reporter David Theall claims it's just a shadow being cast from some unknown individual accidentally walking in front of a lighting fixture during the broadcast. Say what? I still do not get, I thought shadows were on the wall on the floor not as a misty form walking.