It would appear that the locomotive did not come to an immediate stop, else he would likely have been ejected through the front windshield.
The windshield is cracked in only one spot. That is either where he hit his head (and required 12 stitches to close) or where something hit the windshield from the outside.
AT this point, we don’t know what happened but I think we will soon find out.
Sure because, being the magnanimous fellow that he is, he’s “agreed” to be interviewed.