Francis Scott Key Bridge collapse in Baltimore...

I don't build bridges but I build things that are over a million square feet and I use a lot of bridge cranes and tall scaffolding.

If you are on a system, doesn't matter what it is, if it collapses, you aren't going to survive. Even if you were falling on a pile of pillows the size of Crater Lake, you are now in a free fall with something that weighs hundreds, if not thousands, of tons. The blunt force of that hitting a human body would liquefy your insides. In water, your broken corpse might stay together.

More than likely they died from massive heart attacks as they were falling. At least let's hope.