"Worse than a concussion, but yes. A severe head injury. It would have been kinder of whoever did this to just finish the job. But I suppose that's the point." He closed his eyes again, trying to breathe through a wave of pain-induced nausea. "Whatever I heal, I take on. I wasn't going to take a chance on it."
He opened his eyes again, forced himself to look at the body again. "Maybe it at least hurt less than it might have."