A big snowball weighing around 250 kilo came out of nowhere and crushed a boy to death in Scotland. The police describe it as a tragic accident and
suspect no crime.
From: BBC: Boy dies under 'giant snowball'
Farmland in Torphins, where the accident occurred
Peter Strang had been playing with a friend when the snowball, reported to weigh a quarter of a ton, rolled down a hill and engulfed him.
The accident happened at about 1745 GMT on Saturday in Torphins, Aberdeenshire, Grampian Police said. There were no suspicious circumstances.
A police spokesman said the death was "the result of a tragic accident". They have not released further details.

Who could possibly have seen that coming? I guess this is one of those incidents that happens once in a lifetime.
Related news sources:
BBC: Driver attacks boy over snowball (From 25 February, 2005)