There is actually pretty good visibility...
from the seat of a bulldozer. If it was a bulldozer-the media has a tendecie to report any machine painted yellow as a "bulldozer", even in large dozers with big blades you sit high enough to see about about 10 ft infront of the blade.
I've been trying to figure out how it could of happened accidentally. She'd was either backed over, threw herself infront of the machine.
I'd like to see a report.