Those are two very freak accidents. We've had several reports of children hit, or killed crossing a busy street after exiting from a school bus. The first account you reported is extremely tragic, as the gal didn't have a chance to move, and was in little postion to, anyway. I would say that the alcohol MIGHT have had something to do with it, or he was distracted and put the SUV in the wrong gear, or the joke went very wrong. Whatever the case the driver will live with this the rest of his life. No family will be spared the grief.
Certainly thoughts and prayers are with you and everyone involved in this unwarranted tragedy. Lynne