Thanks Mrs Mush, How sad.
II heard on Fox that the tractor rig drove for quite awhile with one wheel on the grass and one wheel on the road. When he tried to correct himself, the tractor-trailer jacknifed across the hwy. The trailer part of the truck was quite dark, and so when the coach vehicle with the students came driving down the hwy it was probably hard for the driver to see much ahead of time, and they crashed into the trailer part of the jacknifed truck.
Bet the driver of the truck fell asaleep, don't you think?
Scandi