No sign of anything on tape. I have a couple of bits to recheck but I think they'll be headlight reflections.
Since the eyewitness accounts are just that - eyewitness - if there was anything it should have been visible to me while I stood there. So I hold out little hope of finding anything on film or video.
Never mind. There are many more such events, and there are many more investigations to do.
Most of them are going to be duds but that's just the way it goes.
Fortunately my glass is half full, currently with Laphroaig.