when i was about 15, me and my brothers and dad were sitting in a really long traffic jam. the lights went green and a motorbike sped off really quickly - next thing, we hear a crash, and see the motorcyclist flying up into the air and down again.
we didn't really see what happened next/i can't remember.
but, we later found out that he had died right then, as his mother had come into my dads office (solicitor) to sort out his will. and my dad said that he had seen the accident that her son had been killed in.