If the collision, accident, or other casualty has resulted in the death of or personal injury to any person, failure to comply with this subsection A is a Class A misdemeanor.
As used in this Section, personal injury means any injury requiring treatment beyond first aid.
Any person failing to comply with this subsection A-1 is guilty of a Class 4 felony if the collision, accident, or other casualty does not result in the death of any person. Any person failing to comply with this subsection A-1 when the collision, accident, or other casualty results in the death of any person is guilty of a Class 2 felony, for which the person, if sentenced to a term of imprisonment, shall be sentenced to a term of not less than 3 years and not more than 14 years.
625 ILCS 45/6-1