Need to open that bottle of whisky I'm afraid! Oh boy! Sounds to me this is inspector's work, tracing the traces of tyres on the road. But ok, on snow little traces, but maybe there's something left on the road. sigh I really hope and pray justice will be done. 4 to 1, but no independent witnesses. Perhaps unknown witnesses passing by? I hope you'll be able to get in contact with people passing by who saw it happening! Take care, Andreas!