My question is:
A character has been hit with considerable force on the back of the head with a regular hammer. He was sitting still, his assailant was on a motorbike. Would this kill him, and if so, would it kill him outright or only if he wasn't taken immediately to hospital? Presumably such a blow would be enough to shatter the skull. If it didn't kill him, would he be in a coma, or brain-damaged? Could he recover from this?
Thanks in advance, and apologies if it's already been covered - I did check the memories section, but couldn't see anything.
Edit: Thanks very much, everyone!