720 ILCS 5/12-5.02: Vehicular endangerment.

(a) A person commits vehicular endangerment when he or she strikes a motor vehicle by causing an object to fall from an overpass or other elevated location in the direction of a moving motor vehicle with the intent to strike a motor vehicle while it is traveling upon a highway in this State.

(b) Sentence. Vehicular endangerment is a Class 2 felony, unless death results, in which case vehicular endangerment is a Class 1 felony.

(c) Definitions. For purposes of this Section:

"Elevated location" means a bridge, overpass, highway ramp, building, artificial structure, hill, mound, or natural elevation above or adjacent to and above a highway.

"Object" means any object or substance that by its size, weight, or consistency is likely to cause great bodily harm to any occupant of a motor vehicle.

"Overpass" means any structure that passes over a highway.

"Motor vehicle" and "highway" have the meanings as defined in the Illinois Vehicle Code.