The amount of in situ blood loss in the above images are quite clear. Is it more likely Stephen died at the scene, or somewhere else? If it’s more likely he died at the scene, on the road, is it more likely he was struck by a vehicle or something else?

Notice in the final image Stephen’s knees are facing away from the line, while in the first two they are either on or facing the yellow line. Which way was he facing when found? The two spray painted dots at his feet suggest the bottom image was taken after moving and measuring the body on scene.