It's very shocking to see this stuff happen. Back in '00 I was two cars back as a 10-year-old girl ran out into the street and was hit by a car, which threw her through the air and onto the edge of the road. By the time traffic stopped and people got out her head was already in a pool of blood. The impact knocked her tennis shoes off her feet and I remember walking over and picking them up so they wouldn't be run over as traffic started ebbing by. She died at the hospital about 7-8 hours later that evening. The really bad part was when her older brother, seeing the commotion, came over and watching the realization of who was lying there hurt hit his face and seeing him start screaming and then running off (presumably home to get help).
I also felt really bad for the driver of the car that hit her, because he was badly dazed, wandering around the scene telling everyone who'd listen that she'd run right out in front of him, that it wasn't his fault, that he couldn't stop in time, etc.