720 ILCS 5/10-2

(a) A person commits the offense of aggravated kidnaping when he or she commits kidnapping and:

(1) kidnaps with the intent to obtain ransom from the person kidnaped or from any other person; (2) takes as his or her victim a child under the age of 13 years, or a person with a severe or profound intellectual disability; (3) inflicts great bodily harm, other than by the discharge of a firearm, or commits another felony upon his or her victim; (4) wears a hood, robe, or mask or conceals his or her identity; (5) commits the offense of kidnaping while armed with a dangerous weapon, other than a firearm, as defined in Section 33A-1 of this Code; (6) commits the offense of kidnaping while armed with a firearm; (7) during the commission of the offense of kidnaping, personally discharges a firearm; or (8) during the commission of the offense of kidnaping, personally discharges a firearm that proximately causes great bodily harm, permanent disability, permanent disfigurement, or death to another person. As used in this Section, "ransom" includes money, benefit, or other valuable thing or concession.

(b) Sentence. Aggravated kidnaping in violation of paragraph (1), (2), (3), (4), or (5) of subsection (a) is a Class X felony. A violation of subsection (a)(6) is a Class X felony for which 15 years shall be added to the term of imprisonment imposed by the court. A violation of subsection (a)(7) is a Class X felony for which 20 years shall be added to the term of imprisonment imposed by the court. A violation of subsection (a)(8) is a Class X felony for which 25 years or up to a term of natural life shall be added to the term of imprisonment imposed by the court. An offender under the age of 18 years at the time of the commission of aggravated kidnaping in violation of paragraphs (1) through (8) of subsection (a) shall be sentenced under Section 5-4.5-105 of the Unified Code of Corrections.