That last photo in that link was pretty chilling - as was the mans account of events.
Slightly off toppic - I've seen a few go down in my time at airshows - but they were always well away from the crowd. Only one was fatal - the thing that got me was the way time seemed to slow down, watching an aircraft fall out of the sky and wondering why the poor chap didnt eject - it seemed to me like he had all the time in the world - only when I saw it again on the news that night did I realise how quickly it all happend. (Impala of the Silver Falcons aerobatic team, the wing detached due to fatigue circa 1993 at Lanseria in Johannesburg)