The Boeing 767 and 757 airplanes are, “clean,” meaning the design is free of typical form drag. This means it will not slow down when descending.
I have an extensive history flying both airplanes.
The saying we used to fly them was, “you can’t slow down when you go down.”
So, if not at the planned speed at the point of descent, you will accelerate as soon as you lower the nose.
The pilots in question were not pilots, they were simply passengers!!
Their both failing to execute a missed approach/ “go around,” was fatal.
I would suggest a criminal charge in this matter.
Someone said the airbrakes were in the wrong position..............