Here's the intersection in question:
https://maps.google.com/?ll=53.51994...52.41,,0,14.89
The Hummer was coming out of the mall to turn left and go north. The Pontiac was driving north. The kids were crossing the street with the lights flashing (presumably). The collision would have occurred in the middle of the intersection.
The police estimate the Pontiac's speed at being in excess of 80km/h, which is more than 50 over the speed limit, which would explain the dangerous driving charge. There's no way the Pontiac driver could have stopped before the crosswalk if he was going 80+ in the intersection.