I don't think there's much question she beat the **** out of him with the golf club. I figure it happened like this. Tiger's out partying and screwing ****** until 2:00 AM. Elin decides she's had enough, so she waits up for him with a golf club. He get home, she starts pounding on him, he gets in the car and tries to leave even though he's half unconsious from the beating, she smashes the back window, he crashes. I honestly can't think of any other scenario that explains all the facts of the case.