I don't blame anyone, but according to the article the blame lays 100% with the driver of the white MG. Looking at the pictures, the MG didn't rear end the motorcycle driver, but either hit the motorcycle driver from the side OR the motorcycle driver cut in front of the white MG. From the pictures, I think you can say that the road isn't well-lit. (pictures are from KhaoSod). Finally, the white MG was driving in the right lane. What is the motorcycle driver doing there? As far as I know, they can only drive in the left lane.