As if.
BBC link
I've watch the video and it looks more like a trick to me.
It's noticable the the camera isn't shaking - it's set up on a tripod and the 'ghost' doesn't move either which points to the apparition being caused by some reflection on the lens. Either accidental or more likely, deliberate.
It's Marley!!!!!
No way Jose!!
Here is the picture:
It looks to me as though the ghostly apparition is running - something I never, ever, do!
Though, on second thoughts, a bit of photoshopping might just make that into a belting unique avatar.
I may be a while . . . . . .