An open double-decker bus was involved in a horrific accident when two students riding on the open top level struck their heads against the bridge as the bus passed under. The two students were killed. Their families have filed wrongful death suits against the bus company for driving the bus in such a wreckless manner. In addition, another student who witnessed the scene has suffered mental and psychological trauma.

Source: http://www.chicagoinjuryattorneyblog.com/2009/11/illinois_personal_injury_lawsu_1.html