My FIL was killed when he was driving drunk back in 2003. He decided to try to outrun the cops, and almost made it home - he flipped the car (a convertible) while trying to take a curve in the road, and was ejected from the vehicle (not wearing a seatbelt either). Ironically, where he landed was actually on the edge of his own property. He underwent surgery early the next morning in which a piece of his skull was removed in order to relieve pressure caused by swelling in his brain. He was on life support for 13 days before the family made the decision to take him off the machines and let him go. Luckily, he didn't take anyone else with him - he did have a passenger in the car, but they were wearing their seatbelt and walked away with only minor injuries.
The saddest part is that even after seeing that, my now ex-DH still abuses alcohol, and drinks & drives. He had two DUI arrests in less than a year. I've heard him swear he's quitting more times than I can count, but at this point I doubt whether he'll ever stop drinking. I hate to say it, but I have my doubts as to whether he will survive to watch our two DDs grow up.