Tennessee Code Title 39. Criminal Offenses § 39-13-534

(1) The defendant tortures the victim during the commission of the offense;

(2) The defendant mutilates the victim during the commission of the offense;

(3) The defendant also commits the offense of kidnapping, as defined in § 39-13-303, or false imprisonment, as defined in § 39-13-302, against the victim;

(4) The defendant also commits the offense of involuntary labor servitude, as defined in § 39-13-307, or trafficking for a commercial sex act, as defined in § 39-13-309, against the victim;

(5) The defendant has, at the time of the commission of the offense, more than one (1) prior conviction for a sexual offense or a violent sexual offense, as those terms are defined in § 40-39-202;

(6) The offense occurs during an attempt by the defendant to perpetrate first degree murder in violation of § 39-13-202;

(7) The defendant subjects the victim to extreme cruelty during the commission of the offense;

(8) The defendant's commission of the offense involved more than one (1) victim; or

(9) The defendant knows or has reason to know that the victim is:

(1) If the defendant was a juvenile at the time of the commission of the offense, then the sentence must be from Range III, as set forth in title 40, chapter 35; and

(2) If the defendant was an adult at the time of the commission of the offense, then the defendant shall be punished by imprisonment for life without possibility of parole.