(a) Any person who willfully or wantonly discharges or attempts to discharge any firearm or barreled weapon capable of discharging shot, bullets, pellets, or other missiles at a muzzle velocity of at least 600 feet per second into any building, structure, vehicle, aircraft, watercraft, or other conveyance, device, equipment, erection, or enclosure while it is occupied is guilty of a Class E felony.
(b) A person who willfully or wantonly discharges a weapon described in subsection (a) of this section into an occupied dwelling or into any occupied vehicle, aircraft, watercraft, or other conveyance that is in operation is guilty of a Class D felony.
(c) If a person violates this section and the violation results in serious bodily injury to any person, the person is guilty of a Class C felony.