(a) Upon a trial for first degree murder, should the jury find the defendant guilty of first degree murder, it shall not fix punishment as part of the verdict, but the jury shall fix the punishment in a separate sentencing hearing to determine whether the defendant shall be sentenced to death, to imprisonment for life without possibility of parole, or to imprisonment for life. The separate sentencing hearing shall be conducted as soon as practicable before the same jury that determined guilt, subject to the provisions of subsection (k) relating to certain retrials on punishment.

(b) In the sentencing proceeding, the attorney for the state shall be allowed to make an opening statement to the jury and then the attorney for the defendant shall also be allowed such statement; provided, that the waiver of opening statement by one party shall not preclude the opening statement by the other party.

(c) In the sentencing proceeding, evidence may be presented as to any matter that the court deems relevant to the punishment, and may include, but not be limited to, the nature and circumstances of the crime; the defendant's character, background history, and physical condition; any evidence tending to establish or rebut the aggravating circumstances enumerated in subsection (i); and any evidence tending to establish or rebut any mitigating factors. Any such evidence that the court deems to have probative value on the issue of punishment may be received, regardless of its admissibility under the rules of evidence; provided, that the defendant is accorded a fair opportunity to rebut any hearsay statements so admitted. However, this subsection (c) shall not be construed to authorize the introduction of any evidence secured in violation of the constitution of the United States or the constitution of Tennessee. In all cases where the state relies upon the aggravating factor that the defendant was previously convicted of one (1) or more felonies, other than the present charge, whose statutory elements involve the use of violence to the person, either party shall be permitted to introduce evidence concerning the facts and circumstances of the prior conviction. Such evidence shall not be construed to pose a danger of creating unfair prejudice, confusing the issues, or misleading the jury and shall not be subject to exclusion on the ground that the probative value of the evidence is outweighed by prejudice to either party. Such evidence shall be used by the jury in determining the weight to be accorded the aggravating factor. The court shall permit a member or members, or a representative or representatives of the victim's family to testify at the sentencing hearing about the victim and about the impact of the murder on the family of the victim and other relevant persons. The evidence may be considered by the jury in determining which sentence to impose. The court shall permit members or representatives of the victim's family to attend the trial, and those persons shall not be excluded because the person or persons shall testify during the sentencing proceeding as to the impact of the offense.

(d) In the sentencing proceeding, the state shall be allowed to make a closing argument to the jury; and then the attorney for the defendant shall also be allowed such argument, with the state having the right of closing.

(e)

(1) After closing arguments in the sentencing hearing, the trial judge shall include instructions for the jury to weigh and consider any of the statutory aggravating circumstances set forth in subsection (i), which may be raised by the evidence at either the guilt or sentencing hearing, or both. The trial judge shall also include instructions for the jury to weigh and consider any mitigating circumstances raised by the evidence at either the guilt or sentencing hearing, or both, which shall include, but not be limited to, those circumstances set forth in subsection (j). These instructions and the manner of arriving at a sentence shall be given in the oral charge and in writing to the jury for its deliberations. However, a reviewing court shall not set aside a sentence of death or of imprisonment for life without the possibility of parole on the ground that the trial court did not specifically instruct the jury as to a requested mitigating factor that is not enumerated in subsection (j).

(2) The trial judge shall provide the jury three (3) separate verdict forms, as specified by subdivisions (f)(1), (f)(2), and (g)(2)(B). The jury shall be instructed that a defendant who receives a sentence of imprisonment for life shall not be eligible for parole consideration until the defendant has served at least twenty-five (25) full calendar years of the sentence. The jury shall also be instructed that a defendant who receives a sentence of imprisonment for life without possibility of parole shall never be eligible for release on parole.

(f)

(1) If the jury unanimously determines that no statutory aggravating circumstance has been proven by the state beyond a reasonable doubt, the sentence shall be imprisonment for life. The jury shall then return its verdict to the judge upon a form provided by the court, which may appear substantially as follows:

(2) If the jury unanimously determines that a statutory aggravating circumstance or circumstances have been proven by the state beyond a reasonable doubt, but that such circumstance or circumstances have not been proven by the state to outweigh any mitigating circumstance or circumstances beyond a reasonable doubt, the jury shall, in its considered discretion, sentence the defendant either to imprisonment for life without possibility of parole or to imprisonment for life. The trial judge shall instruct the jury that, in choosing between the sentences of imprisonment for life without possibility of parole and imprisonment for life, the jury shall weigh and consider the statutory aggravating circumstance or circumstances proven by the state beyond a reasonable doubt and any mitigating circumstance or circumstances. In its verdict, the jury shall specify the statutory aggravating circumstance or circumstances proven by the state beyond a reasonable doubt and shall return its verdict to the judge upon a form provided by the court, which may appear substantially as follows:

(g)

(1) The sentence shall be death, if the jury unanimously determines that:

(A) At least one (1) statutory aggravating circumstance or several statutory aggravating circumstances have been proven by the state beyond a reasonable doubt; and

(B) Such circumstance or circumstances have been proven by the state to outweigh any mitigating circumstances beyond a reasonable doubt.

(2)

(A) If the death penalty is the sentence of the jury, the jury shall:

(i) Reduce to writing the statutory aggravating circumstance or statutory aggravating circumstances so found; and

(ii) Signify that the state has proven beyond a reasonable doubt that the statutory aggravating circumstance or circumstances outweigh any mitigating circumstances.

(B) These findings and verdict shall be returned to the judge upon a form provided by the court, which may appear substantially as follows:

(h) If the jury cannot ultimately agree on punishment, the trial judge shall inquire of the foreperson of the jury whether the jury is divided over imposing a sentence of death. If the jury is divided over imposing a sentence of death, the judge shall instruct the jury that in further deliberations, the jury shall only consider the sentences of imprisonment for life without possibility of parole and imprisonment for life. If, after further deliberations, the jury still cannot agree as to sentence, the trial judge shall dismiss the jury and the judge shall impose a sentence of imprisonment for life. The judge shall not instruct the jury, nor shall the attorneys be permitted to comment at any time to the jury, on the effect of the jury's failure to agree on a punishment.

(i) No death penalty or sentence of imprisonment for life without possibility of parole shall be imposed, except upon a unanimous finding that the state has proven beyond a reasonable doubt the existence of one (1) or more of the statutory aggravating circumstances, which are limited to the following:

(1) The murder was committed against a person less than twelve (12) years of age and the defendant was eighteen (18) years of age or older;

(2) The defendant was previously convicted of one (1) or more felonies, other than the present charge, whose statutory elements involve the use of violence to the person;

(3) The defendant knowingly created a great risk of death to two (2) or more persons, other than the victim murdered, during the act of murder;

(4) The defendant committed the murder for remuneration or the promise of remuneration, or employed another to commit the murder for remuneration or the promise of remuneration;

(5) The murder was especially heinous, atrocious, or cruel, in that it involved torture or serious physical abuse beyond that necessary to produce death;

(6) The murder was committed for the purpose of avoiding, interfering with, or preventing a lawful arrest or prosecution of the defendant or another;

(7) The murder was knowingly committed, solicited, directed, or aided by the defendant, while the defendant had a substantial role in committing or attempting to commit, or was fleeing after having a substantial role in committing or attempting to commit, any first degree murder, arson, rape, robbery, burglary, theft, kidnapping, aggravated child abuse, aggravated child neglect, rape of a child, aggravated rape of a child, aircraft piracy, or unlawful throwing, placing or discharging of a destructive device or bomb;

(8) The murder was committed by the defendant while the defendant was in lawful custody or in a place of lawful confinement or during the defendant's escape from lawful custody or from a place of lawful confinement;

(9) The murder was committed against any law enforcement officer, corrections official, corrections employee, probation and parole officer, emergency medical or rescue worker, emergency medical technician, paramedic or firefighter, who was engaged in the performance of official duties, and the defendant knew or reasonably should have known that the victim was a law enforcement officer, corrections official, corrections employee, probation and parole officer, emergency medical or rescue worker, emergency medical technician, paramedic or firefighter engaged in the performance of official duties;

(10) The murder was committed against any present or former judge, district attorney general or state attorney general, assistant district attorney general or assistant state attorney general, due to or because of the exercise of the victim's official duty or status and the defendant knew that the victim occupied such office;

(11) The murder was committed against a national, state, or local popularly elected official, due to or because of the official's lawful duties or status, and the defendant knew that the victim was such an official;

(12) The defendant committed “mass murder,” which is defined as the murder of three (3) or more persons, whether committed during a single criminal episode or at different times within a forty-eight-month period;

(13) The defendant knowingly mutilated the body of the victim after death;

(14) The victim of the murder was seventy (70) years of age or older; or the victim of the murder was particularly vulnerable due to a significant disability, whether mental or physical, and at the time of the murder the defendant knew or reasonably should have known of such disability;

(15) The murder was committed in the course of an act of terrorism;

(16) The murder was committed against a pregnant woman, and the defendant intentionally killed the victim, knowing that she was pregnant;

(17) The murder was committed at random and the reasons for the killing are not obvious or easily understood; or

(18) The defendant knowingly sold or distributed a substance containing fentanyl, carfentanil, or any other opiate listed in § 39-17-408(c) with the intent and premeditation to commit murder.

(j) In arriving at the punishment, the jury shall consider, pursuant to this section, any mitigating circumstances, which shall include, but are not limited to, the following:

(1) The defendant has no significant history of prior criminal activity;

(2) The murder was committed while the defendant was under the influence of extreme mental or emotional disturbance;

(3) The victim was a participant in the defendant's conduct or consented to the act;

(4) The murder was committed under circumstances that the defendant reasonably believed to provide a moral justification for the defendant's conduct;

(5) The defendant was an accomplice in the murder committed by another person and the defendant's participation was relatively minor;

(6) The defendant acted under extreme duress or under the substantial domination of another person;

(7) The youth or advanced age of the defendant at the time of the crime;

(8) The capacity of the defendant to appreciate the wrongfulness of the defendant's conduct or to conform the defendant's conduct to the requirements of the law was substantially impaired as a result of mental disease or defect or intoxication, which was insufficient to establish a defense to the crime but which substantially affected the defendant's judgment; and

(9) Any other mitigating factor that is raised by the evidence produced by either the prosecution or defense, at either the guilt or sentencing hearing.

(k) Upon motion for a new trial, after a conviction of first degree murder, if the court finds error in the trial determining guilt, a new trial on both guilt and sentencing shall be held; but if the court finds error alone in the trial determining punishment, a new trial on the issue of punishment alone shall be held by a new jury empanelled for that purpose. If the trial court, or any other court with jurisdiction to do so, orders that a defendant convicted of first degree murder, whether the sentence is death, imprisonment for life without possibility of parole or imprisonment for life, be granted a new trial, either as to guilt or punishment, or both, the new trial shall include the possible punishments of death, imprisonment for life without possibility of parole or imprisonment for life.