Further to Mark's and leebo's comments, even if someone has some information regarding an incident/accident, why should it be broadcast on here anyway? If an individual has a close connection to an incident then they will already know about it, and will not be logging onto the internet to find out about it from a third or fourth-hand source.
The way I see it is that the only people broadcasting such rumours (and that's all they are in most instances) are voyeurs and nosey-neighbour types. "Why are Police cars going down such and such road?", "I heard there was a crash on such and such road - anyone got any information?". Yes - the people who need the information have it. If you haven't been told, you don't need to know.
Purely my opinion - which last time I checked I am perfectly entitled to.