Yes truly awful for all concerned. Let's hope the injured pull through.
I recall reading about a couple who'd gone to New York on holiday and had been mown down and killed by a garbage truck. What made matters even worse in that case was the fact that the driver had not been taking his epilepsy medication. He was done for second degree murder and got a 20 year sentence.
http://www.westerndailypress.co.uk/I...ail/story.html
Thankfully there's nothing to indicate that the driver in this case didn't also tragically succumb to an event beyond his control.