You are right the shadow should have someone infront and the relfection you can see. But loads of reasons why this could be, light angle for one changes everything. Reflections, reflected shadows, then the size of the shadow, judging from that he would have to be close as it is quite defined. Then you have the delay from actually live T.V could easily be whacked in there during that space, it's only a simple edit thing for big companys. It is not a ghost. I reckon it was definatly chucked in there as an attempt to make publicity, the amount of publicity that news company has from that. Was a prime oppertnuity especially with the gullable minds of today. Made loads from that I bet.