ieeeee bang and bang again

That is how it felt. And after relieved, we all came out in one piece.

What happened:
car A changed lane to the left just before car B.
car B brakes
car C changed lane to the right.
car B comes to a stop
car D sies car C change lane and car B standing still on the highway.
car D brakes but just hit car B
car E brakes and hit car D full.

car A and car C are gone.