That could be Cain putting Ross in the back of the van he parks on the cliff top. If it's Adam either Chrissie or Robert must have got another car - Robert's is burnt out. And why move Adam - he got caught in an accident. I reckon it's Ross and Cain doesn't know whether he got out alive or drowned in the river - just a thought. I also think it's Adam who's dead - in the bodybag.