Dennis Wade Suttles v. State of Tennessee ( 2014 )


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  •         IN THE COURT OF CRIMINAL APPEALS OF TENNESSEE
    AT KNOXVILLE
    April 23, 2014 Session
    DENNIS WADE SUTTLES v. STATE OF TENNESSEE
    Appeal from the Criminal Court for Knox County
    No. 72245 Mary Beth Leibowitz, Judge
    No. E2013-01016-CCA-R3-PD - Filed June 25, 2014
    The petitioner, Dennis Wade Suttles, appeals from the trial court’s denial of his petition in
    which he sought relief from his death sentence, claiming that he was intellectually disabled.
    On appeal, the petitioner contends that the trial court erred in denying (1) his petition for writ
    of error coram nobis, (2) his motion for a declaratory judgment, and (3) his stand-alone claim
    under the intellectual disability provisions in Tennessee Code Annotated section 39-13-203.
    Upon reviewing the record and the applicable law, we affirm the judgment of the trial court.
    Tenn. R. App. P. 3 Appeal as of Right; Judgment of the Criminal Court Affirmed
    A LAN E. G LENN, J., delivered the opinion of the Court, in which T HOMAS T. W OODALL and
    R OGER A. P AGE, JJ., joined.
    Daniel E. Kirsch, Nashville, Tennessee, for the appellant, Dennis Wade Suttles.
    Robert E. Cooper, Jr., Attorney General & Reporter; Brent C. Cherry, Senior Counsel;
    Randall E. Nichols, District Attorney General; and Leland L. Price, Assistant District
    Attorney General, for the appellee, State of Tennessee.
    OPINION
    TRIAL PROCEEDINGS
    On March 13, 1996, the petitioner killed his estranged girlfriend, Gail Rhodes, in the
    presence of her daughter and her daughter’s friend in the parking lot of a Taco Bell in
    Knoxville, Tennessee. In November 1997, the petitioner was convicted of first degree
    premeditated murder and sentenced to death. The jury found two aggravating circumstances:
    (1) the petitioner was previously convicted of one or more violent felonies and (2) the murder
    was especially heinous, atrocious, or cruel. See Tenn. Code Ann. § 39-13-204(i)(2), (5). The
    Tennessee Supreme Court affirmed the petitioner’s conviction and death sentence on direct
    appeal. See State v. Suttles, 
    30 S.W.3d 252
    , 255 (Tenn. 2000).
    The evidence presented at trial was summarized by the Tennessee Supreme Court on
    direct appeal as follows:
    The proof introduced at the guilt phase of the trial showed that the
    defendant and the victim met and began dating in April of 1995. The
    relationship progressed, and in October 1995 the defendant asked the victim
    to marry him. The victim’s divorce was not final at that time, so the
    engagement was delayed. In December 1995, the defendant purchased a
    house, and the defendant, the victim, and her fifteen-year-old daughter,
    Christina, moved into the house together. At Christmas, the defendant gave
    the victim an engagement ring.
    However, in February 1996, the victim moved out of the defendant’s
    house after the two argued. Around the time of this argument, the victim’s
    co-workers had noticed deep bruises on the victim’s neck that looked like
    fingerprints. In his testimony, the defendant admitted that during the argument
    he tried to take the engagement ring from the victim’s finger and broke the
    victim’s necklace.
    The defendant was distraught at the breakup of the relationship.     He
    repeatedly sought to convince the victim to return to him. He called        her
    repeatedly at work, sometimes waited for her at work, left cards on         the
    windshield of her car, and attempted to speak with her whenever he saw      her
    in public.
    The victim appeared afraid of the defendant and tried to avoid him. She
    did not speak with him on the telephone when he called, and the victim’s
    co-workers escorted her to her vehicle in the evening. In addition, the victim
    kept secret the location of her new residence and carried important personal
    papers, such as a deed to her burial plot, in her purse so that the papers could
    be easily located should something happen to her. The victim knew that in
    1986, the defendant had pled guilty to one count of felonious assault with
    bodily injury and three counts of assault with intent to commit first degree
    murder. She also knew that these convictions arose out of an incident where
    the defendant attempted to force his estranged former wife and his
    -2-
    three-year-old son to return home with him. When his former father-in-law
    intervened, the defendant shot him. The defendant also assaulted a police
    officer who tried to apprehend him during this episode. The victim knew the
    circumstances of the previous convictions because she had accompanied the
    defendant on his monthly visit to his parole office on October 3, 1995. The
    parole officer told the victim the circumstances of the offenses and advised her
    to call if “anything unusual occurred.”
    On March 13, 1996, about one month after the break-up, the defendant,
    who was a foreman for a roofing company, worked his regular job. His
    co-workers testified that he was not angry or upset that day, did not make
    threatening remarks about the victim, and seemed his usual self. As he was
    driving home from work, he saw the victim drive by in her car with her
    daughter and her daughter’s friend, Arlisa Tipton, but he lost her car when she
    drove into a residential neighborhood. The defendant then drove to his
    mother’s house, where he was invited to eat supper. He accepted the invitation
    but decided that he would go to his own home first and shower and change
    clothes before supper. The defendant left his mother’s home around 5:30 p.m.,
    and he did not appear angry or upset at the time he left, nor did he say anything
    about the victim. The defendant’s step-father operated a small engine repair
    shop and had repaired the motor in a piece of equipment, a leaf blower, that
    the defendant used on his roofing jobs. The defendant loaded the leaf blower
    in his car when he left his mother’s home and said that he intended to use it on
    his roofing job the next day.
    In the meantime, the victim, who had been aware that the defendant was
    following her and had deliberately eluded him, drove to a nearby Taco Bell
    restaurant to eat with Christina and Arlisa. According to Christina, the victim
    parked her car in the back of the restaurant so the defendant would not see the
    car if he drove past the front of the restaurant on Chapman Highway.
    Unfortunately, on the way to his home, the defendant stopped at
    Wal-Mart on Chapman Highway which is located in the same shopping mall
    area as the Taco Bell where the victim was eating with Christina and Arlisa.
    The defendant intended to purchase some roofing supplies. The defendant was
    unable to find the products he needed, so he left Wal-Mart. As he was driving
    away from Wal-Mart toward Chapman Highway, he drove past the back of the
    Taco Bell and pulled into the restaurant when he noticed the victim’s car.
    Parking his automobile beside the victim’s vehicle, the defendant went inside
    the restaurant and attempted to speak with the victim. The two argued, and the
    -3-
    defendant followed the victim and the girls outside.
    The argument continued as the victim and the defendant stood beside
    the victim’s automobile. Finally, the defendant grabbed the victim to prevent
    her from getting into her car. Placing one arm around the victim’s neck, the
    defendant held a lock blade pocket knife to her throat. When Christina
    approached, the defendant said, “Get back or I’ll kill her.” Christina stepped
    back, and the victim told the defendant to put the knife away and she would go
    with him. The defendant put the knife in his pocket, apologized, and released
    the victim. When the victim fled toward the restaurant, the defendant
    followed, tackled the victim, pulled out his knife, slashed her throat and
    stabbed her multiple times. Christina, who witnessed the attack on her mother,
    testified:
    He cut her on her neck. He slit her neck all to pieces. And he
    stabbed her in the face and cut her lip and he cut her hair and he
    cut her body; he stabbed her. And I saw him flip her over and
    he stabbed her in the back. And that’s all he–
    ***
    I was about three feet back because she kept telling me to get
    back and she kept screaming.
    When he was finished, the defendant arose, wiped off his knife,
    returned it to his pocket, nonchalantly got into his car, and drove away.
    Christina testified that the defendant smiled at her as he drove by.
    Amanda Reagan, an employee of Taco Bell, and Shawn Patrick Kane,
    a man who had just left the grocery store across the parking lot from Taco
    Bell, also witnessed the stabbing. According to these witnesses, after stabbing
    the victim, the defendant nonchalantly got into his car and drove away as if
    nothing of any great import had occurred. Both of these witnesses noticed the
    defendant’s license plate number and gave it to police.
    While they waited for an ambulance, Reagan, Kane, and an unidentified
    nurse, tried to help the victim as she lay helpless and bleeding in the parking
    lot. Attempting to stop or slow the bleeding, they applied pressure using towel
    and napkin compresses. The victim complained of choking and, when she
    tried to move, witnesses testified that the wound on her neck gaped open and
    -4-
    she started gurgling blood. Although Kane did not hear her say anything
    further after she complained of choking, he said she was still trying to move
    when she was being loaded into the ambulance. Reagan testified that as she
    was holding the stretcher while the victim was being loaded onto the
    ambulance, she heard the victim call out her daughter’s name and saw the
    victim stretch out her hand as she was placed in the ambulance. The victim
    arrived by ambulance at the hospital at 6:26 p.m. and was pronounced dead at
    6:35 p.m.
    Around 7 p.m., the defendant called a friend, Donna Rochat. He told
    Rochat that he thought he had killed the victim after an argument in the
    parking lot of the Taco Bell. The defendant told Rochat that he had stabbed
    the victim in the back, cut her throat, and stabbed her in the chest. Rochat
    advised the defendant to surrender to police, but he said he could not do that.
    Rochat said the defendant seemed calm, but he commented that he would kill
    himself if he had a gun. The defendant also called his mother at some point
    after the stabbing and asked her to drive to the Taco Bell and determine if he
    had killed the victim.
    Later that same evening, the police arrested the defendant as he
    approached his house on foot. The defendant had parked his car at a church
    parking lot about one mile from his home. The police described the defendant
    as cooperative and unemotional at the time he was apprehended. A knife with
    a wooden handle and approximately a three inch blade was found in the
    defendant’s pocket at the time of his arrest.
    Dr. Sandra K. Elkins, the Knox County Medical Examiner and a
    forensic pathologist, testified that the victim had suffered twelve major
    wounds inflicted with a sharp instrument such as a knife. These wounds
    included three stab wounds to the left side of her neck, a large gaping slash
    wound to the right neck, one stab wound just beneath her left breast, one stab
    wound to her left front shoulder, six stab wounds in her back. The victim also
    sustained an incise wound to the left side of her lips, defensive wounds to both
    hands and her right wrist, and superficial wounds underneath her chin. Dr.
    Elkins opined that the cause of death was multiple knife stab wounds. The
    immediate cause of death according to Dr. Elkins was bleeding from the
    jugular vein and external carotid artery, which were cut by the slash wound to
    the right neck. The other major wounds would have also potentially caused
    death given enough time and no medical treatment. Dr. Elkins also opined that
    the victim was alive when the wounds were inflicted, that she remained able
    -5-
    to speak, because the injury to her larynx from the slash wound to the right
    side of her neck did not damage her vocal cords, that she would have fallen
    unconscious in about five to six minutes, and that she would have bled to death
    within ten minutes as a result of the slash wound to the right side of her neck.
    However, Dr. Elkins opined that application of pressure to the wound on the
    right side of the victim’s neck may have extended consciousness and delayed
    the time of death by five minutes.
    The defendant testified at trial. According to the defendant, while he
    and the victim were talking beside her car, the victim told him that, if he did
    not stay away, she would have him killed. He then grabbed her and told her
    not to threaten him. While admitting that he put a knife to the victim’s throat,
    he denied that he intended to hurt her and claimed that he was only reacting to
    the victim’s threat. The defendant testified that, when he released the victim
    and apologized, she told him he was a dead man. The defendant testified he
    did not remember anything that happened after the victim threatened him the
    second time. He claimed that he did not regain his memory until weeks after
    the murder.
    During the defendant’s testimony it was revealed that he had previously
    pled guilty to one count of felonious assault with bodily injury and three counts
    of assault with intent to commit first degree murder. As previously stated, the
    victims of these offenses were his former father-in-law, his ex-wife, his
    three-year-old son, and a police officer who was attempting to apprehend him.
    The offenses occurred when the defendant tried to force his former wife, who
    had left him, to return home. The victim was aware of the defendant’s prior
    convictions.
    The defendant’s stepfather testified that during the years that he had
    known the defendant he had never seen him angry or upset, and he described
    the defendant as a calm and easygoing person. Dr. Jerry Matthews, a clinical
    psychologist who had evaluated the defendant on three separate occasions, in
    1991 and 1993 for the Tennessee Board of Paroles and in 1996 for the defense,
    testified about the defendant’s mental condition. According to the history
    related to Dr. Matthews, the defendant had been a “blue baby” when he was
    born. His older brother died of suffocation at the age of five. His father left
    the family when the defendant was four, and the defendant was raised by his
    paternal grandparents, who were strict, religious people. The defendant
    dropped out of school in the tenth grade and went to work. His one marriage
    lasted twelve years and produced one child.
    -6-
    In 1991, Dr. Matthews concluded that the defendant presented a
    substantial risk of violent behavior if released on parole, particularly if he was
    involved in a heterosexual relationship. Dr. Matthews described the defendant
    as someone who acts impulsively, without thought or reflection, and who,
    frightened of being alone, becomes anxious and potentially violent when
    unable to control his environment. According to Dr. Matthews the defendant’s
    behavior was attributable to the oxygen deprivation he suffered as a “blue
    baby” and to his abandonment as a child. Between 1991 and 1993, the
    defendant attended anger management classes in prison. He was released on
    parole in 1994.
    Dr. Matthews opined that at the time of the homicide the defendant was
    in a state of heightened emotional arousal, that he put the knife to the victim’s
    throat to convince her to come back to him, and that he released her when she
    reassured him. Accepting the defendant’s version of the offense, Dr.
    Matthews said that the victim’s threat to have the defendant killed was “the
    straw that broke the camel’s back.” Dr. Matthews opined that the killing was
    not premeditated and was instead “an impulsive and explosive act of violence”
    caused by “basic, primitive emotions of anger and fear and hurt, all mixed
    together.”
    In rebuttal, the State recalled Christina who testified that her mother did
    not threaten the defendant, as he had claimed, before he stabbed her.
    Based upon this proof, the jury found the defendant guilty of
    premeditated first degree murder. At the sentencing phase, the State relied
    upon the proof presented at the guilt phase, and also offered into evidence the
    indictments and judgments from the defendant’s four previous convictions for
    assault. These showed that on January 6, 1986, in Sevier County, Tennessee,
    the defendant pleaded guilty to one count of felonious assault with bodily
    injury and enhancement for use of a firearm (sentence 30 years plus 5 years for
    enhancement) and to three counts of assault with intent to commit first degree
    murder by use of a firearm (three 5-year concurrent sentences).
    The defendant presented records from his earlier imprisonment in the
    Department of Correction to show that he had been a model inmate. For
    example, these records showed that at the time of his parole he received
    recommendations from twenty-nine staff members at the correctional center
    and that the warden and associate warden recommended parole. He worked
    during his entire imprisonment, was not violent and reached “trusty” status.
    -7-
    During his incarceration, the defendant received two write-ups: one for having
    contraband (tools) in his cell and the other for violating policy and procedures
    by possessing a fan from which the name and inmate number had been
    scrubbed.
    The defendant's mother, Lois Evelyn Napier, testified that the defendant
    was born breach and was a “blue baby.” After the defendant’s father left, the
    defendant lived with his paternal grandparents because his mother was
    working two jobs and could not care for him. The defendant was not involved
    in any trouble as a child. During his imprisonment, Mrs. Napier visited her
    son weekly. After his release on parole, he lived with his mother and her
    husband and caused no trouble. The defendant called his mother on the night
    of the murder and asked if she would go to the Taco Bell to see if the victim
    was alive. Ms. Napier testified that she loved her son very much and wanted
    to help him. The defendant was forty-four years old at the time of the murder.
    
    Id. at 255-59.
    POST-CONVICTION PROCEEDINGS
    In March 2001, the petitioner filed a pro se petition for post-conviction relief. In his
    amended petition, filed in January 2002, the petitioner contended that he was intellectually
    disabled and ineligible for the death penalty. He further contended that trial counsel were
    ineffective in failing to allege intellectual disability based upon the petitioner’s I.Q. score of
    69 on the Beta-II I.Q. test in both 1984 and 1991.
    In November 2005, the petitioner filed a second amended petition in which he alleged
    that trial counsel were ineffective in failing to present evidence of his “intellectual deficits.”
    The petitioner noted his I.Q. scores in 1984 and 1991 and stated that the scores demonstrated
    that he was “in the [intellectually disabled] range.” The petitioner raised a claim which he
    titled an “Atkins-Roper Claim.” He asserted that because his “mental age, i.e., an
    individual’s absolute level of performance, is below the threshold established by Roper [v.
    Simmons, 
    543 U.S. 551
    (2005),] and Atkins [v. Virginia, 
    536 U.S. 304
    (2002)], his execution
    would violate Article I, §§ 8 and 16 of the Tennessee Constitution and the Eighth and
    Fourteenth Amendments to the United States Constitution.” The petitioner cited to Atkins,
    Roper, and Van Tran v. State, 
    66 S.W.3d 790
    (Tenn. 2001), and asserted that due to his
    “intellectual and emotional problems, his cognitive and psychological functioning, i.e. his
    . . . mental age, is below 18 years.”
    -8-
    During the August 2007 post-conviction hearing, the petitioner presented the
    testimony of Dr. Pamela Auble, a clinical neuropsychologist who evaluated him in June
    2003. According to Dr. Auble’s report, she reviewed prior psychological evaluations, prior
    testimony, summaries of interviews with the petitioner and his family, medical records,
    school records, and prison records. Dr. Auble interviewed the petitioner and performed
    standardized testing. She also reviewed testing of the petitioner by Dr. Michael Tramontana
    in 2001.
    Dr. Auble testified that while in prison in 1986, the petitioner received an I.Q. score
    of 69 on the Beta I.Q. test, a screening test. In March of 1996, the petitioner received an I.Q.
    score of 78 on the Beta test. Dr. Auble said the I.Q. score of 78 was consistent with her
    evaluation. She stated that in 2001, Dr. Tramontana administered the Wechsler Adult
    Intelligence Scale-III (WAIS-III), the “gold standard” I.Q. test. The petitioner received a
    full-scale I.Q. score of 77, a verbal I.Q. score of 77, and a performance I.Q. score of 81. Dr.
    Auble noted in her report that the results obtained by both her and Dr. Tramontana were
    considered to be valid and that the petitioner received perfect scores on malingering tests.
    Dr. Auble stated that the results of the I.Q. in 2001 were within one point of the petitioner’s
    estimated I.Q. in 1996, were “very consistent,” and were “further evidence that he’s not
    faking or malingering.”
    Dr. Auble stated in her report that the petitioner’s intelligence was in the borderline
    range. She testified that she did not believe that the Petitioner met the standard for
    intellectual disability set forth in Tennessee’s statute. Dr. Auble said that an I.Q. of 70 or
    below with some error of measurement is generally considered to be in the intellectually
    disabled range. She explained that as a result, a person with an I.Q. score of 73 or 75 can be
    considered to be intellectually disabled if the person has deficits in adaptive behavior. She
    stated that the Tennessee statute set out a specific definition for intellectual disability that has
    been interpreted to require an I.Q. “cut-off” of 70.
    The petitioner also presented the testimony of Dr. Peter Brown, a psychiatrist, who
    evaluated the petitioner. Dr. Brown interviewed the petitioner for a total of five hours and
    considered Dr. Auble’s report and much of the same categories of information relied upon
    by Dr. Auble. In explaining the petitioner’s cognitive functioning in his report, Dr. Brown
    stated that he estimated the petitioner’s I.Q. “as in the range borderline [intellectually
    disabled] to low average.” Dr. Brown testified at the hearing that the petitioner’s I.Q. was
    within the borderline range. He further testified that the petitioner’s “mental age” fell within
    a seven- to nine-year-old level of functioning.
    In its order denying post-conviction relief, the post-conviction court noted that
    Tennessee law does not refer to “mental age” but to intellectual disability. As a result, the
    -9-
    post-conviction court addressed the issue as set forth in the statute. The post-conviction
    court found as follows:
    In this case, the petitioner presented proof of only one beta 2 I.Q. score in
    prison which was below 70. The petitioner was in his thirties at the time he
    took the I.Q. test in prison. Therefore, the proof submitted did not establish
    that the petitioner’s “alleged” [intellectual disability] manifested itself before
    the age of 18 as required by the statute and the case law. . . .
    In addition, the evidence presented both at trial and at the post-
    conviction hearing established that the petitioner began working at a young
    age, has always worked, could maintain a household, and even held a
    supervisory job with additional responsibilities. The experts, counsel, and
    petitioner’s own extended family testified that he was not [intellectually
    disabled]. [Trial counsel] discussed the numerous adaptive behaviors that the
    petitioner exhibited which showed no sufficient deficit as required by the
    statute. One of his elementary school teachers testified that he was a fair
    student and that he was clean, neat, and liked books. This testimony was
    consistent with statements from the family about the way the petitioner kept
    his things, his car, and his home later.
    Based upon all the proof, this claim also does not support any claim of
    a deficit in adaptive behavior as required by the statute. Accordingly, the
    petitioner would not be entitled to relief on this issue.
    The petitioner did not raise on appeal an independent claim challenging his eligibility
    for the death penalty due to intellectual disability or “mental age.” This court affirmed the
    post-conviction court’s judgment denying post-conviction relief. See Dennis Wade Suttles
    v. State, No. E2008-02146-CCA-R3-PD, 
    2011 WL 1642640
    (Tenn. Crim. App. Apr. 29,
    2011), perm. app. denied (Tenn. Nov. 16, 2011).
    INTELLECTUAL DISABILITY PROCEEDINGS
    On April 9, 2012, the petitioner filed a motion to reopen post-conviction proceedings,
    alleging that he is intellectually disabled and, therefore, ineligible for the death penalty. The
    petitioner contended that the Tennessee Supreme Court’s decision in Coleman v. State, 
    341 S.W.3d 221
    (Tenn. 2011), established a new constitutional right that was not recognized at
    the time of his trial. He further contended that he had new scientific evidence that he is
    intellectually disabled and, thus, actually innocent of capital murder and the death penalty.
    -10-
    The petitioner attached to his motion the April 5, 2012 affidavit of Dr. Auble. Dr.
    Auble reviewed a number of the petitioner’s records and the transcript of testimony from
    witnesses during the post-conviction hearing. She stated that at the time, Tennessee law
    required a raw I.Q. test score of 70 or below to establish intellectual disability. She further
    stated that because the petitioner’s raw I.Q. test score on the WAIS-III was 77, she believed
    that intellectual disability could not be considered under the Tennessee statute at that time.
    Following the release of Coleman, Dr. Auble “re-analyzed the information [she] had
    available from 2005 and supplemented it with additional information that [she] obtained
    regarding [the petitioner] on intelligence and adaptive deficits.”
    Dr. Auble noted that the petitioner was administered the WAIS-III on August 28,
    2001, and received a full-scale I.Q. score of 77. Dr. Auble did not administer I.Q. testing to
    the petitioner during her prior evaluation in 2003 but relied upon the previous test score. She
    adjusted the score downward 1.8 points due to the Flynn Effect and 2.34 points due to
    inflation of I.Q. scores on the WAIS-III. The adjustments resulted in an I.Q. score of 72.86.
    Dr. Auble considered the five-point measurement error for a Wechsler I.Q. score. She noted
    that test scores generally are reported within a range and that there is a 95% probability that
    the true intelligence test score would fall within that range. The 95% confidence interval for
    a score of 72 would be from 68-77, and the interval for a score of 73 would be from 69-78.
    On March 12, 2012, Dr. Auble administered the WAIS-IV to the petitioner, who
    obtained a full-scale score of 71. Dr. Auble adjusted the score downward by 1.8 points based
    upon the Flynn Effect, resulting in an adjusted score of 69.2. She stated that the petitioner
    obtained a perfect score on two critical trials of the Test of Memory Malingering, indicating
    that he was putting forth adequate effort on the testing. Dr. Auble concluded that
    [b]ecause of the difficulties with the normative sample for the WAIS-III,
    because the WAIS-III was administered by a technician with an unknown
    amount of experience and training, and because no reliable effort testing was
    conducted in 2001, the 2012 adjusted IQ test score of 69.2 is seen as more
    valid and reliable than the adjusted 2001 IQ test score of 72.86.
    Dr. Auble found that the score of 69.2 was consistent with significant deficits on tasks
    measuring intellectual functioning present in her prior neuropsychological testing of the
    petitioner. As a result, Dr. Auble opined that the petitioner has significantly subaverage
    general intellectual functioning as evidenced by an I.Q. of 69.2 and that he meets that
    standard set forth in the first prong of intellectual disability in the Tennessee statute.
    Dr. Auble stated that she did not conduct a formal evaluation of adaptive behavior
    deficits in her prior evaluation but has since conducted an analysis. In doing so, she
    -11-
    considered the information in her 2005 report, Dr. Brown’s 2005 report, and other
    background material that she had at that time. On March 12, 2012, Dr. Auble administered
    the Independent Living Scale, a test of adaptive behavior functioning, to the petitioner. Dr.
    Auble determined that the petitioner had significant deficits in social/interpersonal skills,
    self-direction, functional academic skills, and health/safety under the Diagnostic and
    Statistical Manual of Mental Disorders (DSM-IV-TR). Under the American Association of
    Intellectual and Developmental Disabilities (AAIDD) criteria, Dr. Auble found that the
    petitioner had significant deficits in the conceptual and social domains of adaptive behavior.
    Dr. Auble concluded that the onset of the petitioner’s significantly subaverage
    intellectual functioning and deficits in adaptive behavior occurred prior to the age of
    eighteen. As a result, she opined that the petitioner is intellectually disabled.
    The petitioner supplemented his motion to reopen with the April 25, 2012 affidavit
    of Dr. Brown. Dr. Brown stated that he evaluated the petitioner in 2005 and found that the
    petitioner functioned at a borderline intellectually disabled level and that the petitioner had
    done so since childhood. Dr. Brown explained that at that time, he understood that
    Tennessee law precluded a diagnosis of intellectual disability if the defendant’s raw I.Q.
    score was higher than 70. Following Coleman, the petitioner’s counsel requested that Dr.
    Brown assess Dr. Auble’s conclusion that under Coleman, the petitioner was intellectually
    disabled at the time of the offense. Dr. Brown noted that his previous findings were
    consistent with an intellectual disability diagnosis at the time of the offense and that “the
    more recent scientific evidence” outlined in Dr. Auble’s affidavit confirmed his previous
    conclusions. As a result, Dr. Brown concurred with Dr. Auble’s conclusion that the
    petitioner was intellectually disabled at the time of the offense.
    Dr. Brown stated that at the time of his evaluation in 2005, the results of
    neuropsychological testing measuring the petitioner’s ability to function led him to conclude
    that the petitioner’s I.Q. test score of 77 on the WAIS-III overestimated his functional ability.
    Dr. Brown further stated that his finding regarding the petitioner’s functional I.Q. was
    consistent with evidence of the petitioner’s actual impaired functioning and his descriptions
    of his life experiences. Dr. Brown noted that in 2005, he further concluded that the
    petitioner’s school records and other evidence of his level of functioning showed that his
    impairment began “early in life.” Finally, Dr. Brown noted that his “findings at the time of
    [his] evaluation were consistent with each prong of [an intellectual disability] diagnosis.
    However, because [the petitioner’s] raw IQ score was higher than 70, [Dr. Brown] was
    unable to reach a diagnosis of [intellectual disability] under Tennessee law as [he]
    understood it at the time.”
    -12-
    On December 20, 2012, the Tennessee Supreme Court released its opinion in Keen
    v. State, 
    398 S.W.3d 594
    (Tenn. 2012), in which the court rejected the bases upon which the
    petitioner sought to reopen his post-conviction proceedings. On January 23, 2013, the
    petitioner amended his motion to include a petition for writ of error coram nobis, a motion
    for declaratory judgment, and an independent claim for relief under Tennessee’s intellectual
    disability statute. The State filed a response seeking summary dismissal.
    Based upon the pleadings, the trial court entered an order denying relief. The trial
    court found that the petitioner’s motion to reopen post-conviction proceedings was precluded
    by Keen. The trial court further found that the issue of intellectual disability was previously
    determined during the initial post-conviction proceedings. The court noted that the
    post-conviction court thoroughly considered the issue and found that the evidence presented
    during the hearing did not establish that the petitioner is intellectually disabled. The trial
    court further noted that the post-conviction court found that the petitioner failed to establish
    both the intelligence prong and the deficits in adaptive behavior prong.
    With regard to the petitioner’s petition for a writ of error coram nobis, the trial court
    found that the affidavits of Dr. Auble and Dr. Brown were cumulative to the evidence
    previously presented at the post-conviction hearing. The trial court further found that the
    affidavits related to the credibility of prior evidence on a previously determined issue and did
    not qualify as “new evidence.” The trial court determined that the petition was barred by the
    statute of limitations and that due process did not require tolling. The court noted that the
    information related to the issue of intellectual disability had been available to the petitioner
    for many years but that the petitioner did not file the petition until almost fourteen years after
    the judgment became final. The court determined that “[m]erely having an expert perform
    yet another evaluation like others had done in the past does not satisfy the criteria for tolling
    the statute.”
    The trial court found that the intellectual disability provisions in Tennessee Code
    Annotated section 39-13-203 do not provide an independent avenue for raising the issue of
    intellectual disability post-trial. Finally, the trial court concluded that the petitioner failed
    to establish a basis for declaratory relief.
    ANALYSIS
    The petitioner contends that the post-conviction court erred in denying his petition for
    error coram nobis and his motion for a declaratory judgment. He also contends that he
    should be allowed to directly invoke the provisions of Tennessee Code Annotated section 39-
    13-203 to establish that he is intellectually disabled.
    -13-
    A. Intellectual Disability and the Death Penalty
    In 1990, Tennessee Code Annotated section 39-13-203 was enacted prohibiting the
    execution of defendants who were intellectually disabled at the time that they committed first
    degree murder. See Tenn. Code Ann. § 39-13-203(b); State v. Howell, 
    151 S.W.3d 450
    , 455
    (Tenn. 2004); Van Tran v. State, 
    66 S.W.3d 790
    (Tenn. 2001). Although the statute is not
    to be applied retroactively, the execution of intellectually disabled individuals violates
    constitutional prohibitions against cruel and unusual punishment. 
    Howell, 151 S.W.3d at 455
    (citing Van 
    Tran, 66 S.W.3d at 798-99
    ); see 
    Atkins, 536 U.S. at 321
    .
    In Tennessee, “intellectual disability” rendering a defendant ineligible for the death
    penalty requires:
    (1) Significantly subaverage general intellectual functioning as evidenced by
    a functional intelligent quotient (I.Q.) of seventy (70) or below;
    (2) Deficits in adaptive behavior; and
    (3) The intellectual disability must have manifested during the developmental
    period, or by eighteen (18) years of age.
    Tenn. Code Ann. § 39-13-203(a). All three prongs must be satisfied to establish intellectual
    disability.
    The defendant has the burden of establishing intellectual disability by a preponderance
    of the evidence. See Tenn. Code Ann. § 39-13-203(c); 
    Howell, 151 S.W.3d at 465
    . The issue
    of whether a defendant is intellectually disabled and, thus, ineligible for the death penalty is
    a mixed question of law and fact. State v. Strode, 
    232 S.W.3d 1
    , 8 (Tenn. 2007). A trial
    court’s findings of fact are binding on this court unless the evidence preponderates against
    those findings. 
    Id. The trial
    court’s application of the law to those facts is reviewed de novo.
    
    Id. The first
    prong of intellectual disability under section 39-13-203(a)(1) requires
    “[s]ignificantly subaverage general intellectual functioning as evidenced by a functional
    intelligent quotient (I.Q.) of seventy (70) or below.” In applying this provision, the
    Tennessee Supreme Court held in Howell that the demarcation of an I.Q. of 70 is a
    “bright-line” rule that must be 
    met. 151 S.W.3d at 456-59
    . Following Howell, the
    Tennessee Supreme Court released its opinion in Coleman v. State, 
    341 S.W.3d 221
    , 241
    (Tenn. 2011), holding that although an individual’s I.Q. is generally obtained through
    standardized intelligence tests, section 39-13-203 does not provide clear direction regarding
    -14-
    how an I.Q. should be determined and does not specify any particular test or testing method
    that should be utilized. The court noted that section 39-13-203(a)(1) requires a “functional
    intelligence quotient of seventy (70) or below” and does not require a “functional intelligence
    quotient test score of seventy (70) or below.” 
    Coleman, 341 S.W.3d at 241
    (emphasis in
    original). Therefore, “the trial courts may receive and consider any relevant and admissible
    evidence regarding whether the defendant’s functional I.Q. at the time of the offense was
    seventy (70) or below.” 
    Id. The supreme
    court noted that section 39-13-203(a)(1) differs with clinical practice in
    one material respect. 
    Id. at 247.
    In diagnosing intellectual disability, clinicians generally
    report their conclusions regarding an individual’s I.Q. within a range, and section
    39-13-203(a)(1) requires more definite testimony. 
    Id. As a
    result, “an expert’s opinion
    regarding a criminal defendant’s I.Q. cannot be expressed within a range (i.e., that the
    defendant’s I.Q. falls somewhere between 65 to 75) but must be expressed specifically (i.e.,
    that the defendant’s I.Q. is 75 or is ‘seventy (70) or below’ or is above 70).” 
    Id. at 242.
    In determining whether a defendant’s functional I.Q. is 70 or below, “a trial court
    should consider all evidence that is admissible under the rules for expert testimony.” 
    Keen, 398 S.W.3d at 605
    . Experts may use relevant and reliable practices, methods, standards, and
    data in formulating their opinions. 
    Coleman, 341 S.W.3d at 242
    . Moreover,
    if the trial court determines that professionals who assess a person’s I.Q.
    customarily consider a particular test’s standard error of measurement, the
    Flynn Effect, the practice effect, or other factors affecting the accuracy,
    reliability, or fairness of the instrument or instruments used to assess or
    measure the defendant’s I.Q., an expert should be permitted to base his or her
    assessment of the defendant’s “functional intelligence quotient” on a
    consideration of those factors.
    
    Id. at n.55.
    The emphasis to be placed upon clinical judgment varies depending upon “the
    type and amount of information available, the complexity of the issue, and the presence of
    one or more challenging conditions or situations.” 
    Id. at 246.
    The trial court is not required
    to follow any particular expert’s opinion but must fully and fairly consider all evidence
    presented, including the results of all I.Q. tests administered to the defendant. 
    Id. at 242.
    Following Coleman, the Tennessee Supreme Court released its opinion in Keen v.
    State, 
    398 S.W.3d 594
    (Tenn. 2012), addressing the issue of whether a capital petitioner may
    allege intellectual disability as a basis for reopening post-conviction proceedings. The
    petitioner in Keen sought to reopen post-conviction proceedings on the ground that he
    possessed new scientific evidence of actual innocence. 
    Keen, 398 S.W.3d at 598
    . The
    -15-
    evidence consisted of a newly-obtained I.Q. score of 67, which the petitioner claimed
    established that he was intellectually disabled and, therefore, “actually innocent” of the death
    penalty. 
    Id. The petitioner
    also asserted that Coleman established a new rule of
    constitutional criminal law that required retroactive application. 
    Id. at 599.
    The Tennessee
    Supreme Court rejected both of the bases upon which the petitioner sought to reopen post-
    conviction proceedings. The court specifically held that Coleman addressed the
    interpretation and application of Tennessee Code Annotated section 39-13-203 and was not
    a constitutional ruling. 
    Id. at 609.
    The court further held that “a claim alleging ineligibility
    for the death penalty does not qualify as an actual innocence claim.” 
    Id. at 613.
    While
    remaining “committed to the principle that Tennessee has no business executing persons who
    are intellectually disabled,” the court held that the petitioner failed to meet the requirements
    for reopening post-conviction proceedings. 
    Id. In addressing
    its holdings in Howell and Coleman, the court noted:
    Regrettably, several courts misconstrued our holding in Howell that
    Tenn. Code Ann. § 39-13-203(a)(1) established a “bright line rule” for
    determining intellectual disability. They understood this language to mean that
    courts could consider only raw I.Q. scores. Accordingly, these courts tended
    to disregard any evidence suggesting that raw scores could paint an inaccurate
    picture of a defendant’s actual intellectual functioning. This was an inaccurate
    reading of Howell, in which we took pains to say that the trial court should
    “giv[e] full and fair consideration to all tests administered to the petitioner”
    and should “fully analyz[e] and consider[] all evidence presented” concerning
    the petitioner’s I.Q.
    
    Id. at 603
    (citations omitted) (emphasis in original). The petitioner requested that the court
    remand his case for a new hearing on the issue of intellectual disability, just as the court had
    done in Coleman and in Smith v. State. See Smith v. State, 
    357 S.W.3d 322
    , 354-55 (Tenn.
    2011); 
    Coleman, 341 S.W.3d at 252-53
    . The court in Keen, however, rejected the
    petitioner’s contention noting that Coleman and Smith took advantage of the one-year
    window for reopening their petitions following the recognition of the constitutional
    prohibition against executing intellectually disabled defendants in Van Tran and Atkins.
    
    Keen, 398 S.W.3d at 613
    . The petitioner in Keen failed to avail himself of that opportunity.
    
    Id. B. Writ
    of Error Coram Nobis
    A writ of error coram nobis is an “extraordinary procedural remedy,” filling only a
    “slight gap into which few cases fall.” State v. Mixon, 
    983 S.W.2d 661
    , 672 (Tenn. 1999)
    -16-
    (citation omitted). Tennessee Code Annotated section 40-26-105(b) provides that coram
    nobis relief is available in criminal cases as follows:
    The relief obtainable by this proceeding shall be confined to errors dehors the
    record and to matters that were not or could not have been litigated on the trial
    of the case, on a motion for a new trial, on appeal in the nature of a writ of
    error, on writ of error, or in a habeas corpus proceeding. Upon a showing by
    the defendant that the defendant was without fault in failing to present certain
    evidence at the proper time, a writ of error coram nobis will lie for
    subsequently or newly discovered evidence relating to matters which were
    litigated at the trial if the judge determines that such evidence may have
    resulted in a different judgment, had it been presented at the trial.
    Our supreme court has stated the standard of review as “whether a reasonable basis exists for
    concluding that had the evidence been presented at trial, the result of the proceedings might
    have been different.” State v. Vasques, 
    221 S.W.3d 514
    , 525-28 (Tenn. 2007) (citation
    omitted).
    Unlike the grounds for reopening a post-conviction petition, the grounds for seeking
    a petition for writ of error coram nobis are not limited to specific categories. Harris v. State,
    
    102 S.W.3d 587
    , 592 (Tenn. 2003). Coram nobis claims may be based upon any “newly
    discovered evidence relating to matters litigated at the trial” so long as the petitioner
    establishes that he or she was “without fault” in failing to present the evidence at the proper
    time. 
    Id. Coram nobis
    claims are “singularly fact-intensive,” are not easily resolved on the
    face of the petition, and often require a hearing. 
    Id. at 592-93.
    The decision to grant or deny
    coram nobis relief rests within the sound discretion of the trial court. 
    Vasques, 221 S.W.3d at 527-28
    .
    The State asserts that the petitioner’s claim is barred by the statute of limitations.
    Coram nobis claims are subject to a one-year statute of limitations. Tenn. Code Ann. § 27-7-
    103. The statute of limitations is computed “from the date the judgment of the trial court
    becomes final, either thirty days after its entry in the trial court if no post-trial motions are
    filed or upon entry of an order disposing of a timely filed, post-trial motion.” Harris v. State,
    
    301 S.W.3d 141
    , 144 (Tenn. 2010). The issue of whether a claim is barred by an applicable
    statute of limitations is a question of law, which this court reviews de novo. See 
    id. We must
    construe the coram nobis statute of limitations “consistent with the longstanding rule
    that persons seeking relief under the writ must exercise due diligence in presenting the
    claim.” 
    Id. -17- The
    one-year statute of limitations may be tolled on due process grounds if the
    petitioner seeks relief based upon newly discovered evidence of actual innocence. Wilson
    v. State, 
    367 S.W.3d 229
    , 234 (Tenn. 2012). In determining whether tolling is proper, the
    court must balance the petitioner’s interest in having a hearing with the State’s interest in
    preventing a claim that is stale and groundless. 
    Harris, 301 S.W.3d at 145
    (citing Workman
    v. State, 
    41 S.W.3d 100
    , 102 (Tenn. 2001)). Generally, “before a state may terminate a claim
    for failure to comply with . . . statutes of limitations, due process requires that potential
    litigants be provided an opportunity for the presentation of claims at a meaningful time and
    in a meaningful manner.” Burford v. State, 
    845 S.W.2d 204
    , 208 (Tenn. 1992). The Burford
    rule consists of three steps:
    (1) determine when the limitations period would normally have begun to run;
    (2) determine whether the ground for relief actually arose after the limitations
    period would normally have commenced; and (3) if the grounds are “later-
    arising,” determine if, under the facts of the case, a strict application of the
    limitations period would effectively deny the petitioner a reasonable
    opportunity to present the claim.
    Sands v. State, 
    903 S.W.2d 297
    , 301 (Tenn. 1995).
    The limitations period normally would have begun to run following the petitioner’s
    trial in 1997. The petitioner filed his petition for writ of error coram nobis on January 23,
    2013, approximately fourteen years after the one-year statute of limitations expired.
    In 1990, Tennessee Code Annotated section 39-13-203, prohibiting the execution of
    intellectually disabled defendants, was enacted. The petitioner, however, did not raise the
    issue of intellectual disability during his 1997 trial. In 2001, our supreme court recognized
    that the execution of intellectually disabled defendants is constitutionally prohibited. See
    Van 
    Tran, 66 S.W.3d at 798-99
    .
    The petitioner contends that the trial court erred in concluding that the issue of
    intellectual disability was previously determined during post-conviction proceedings.
    According to the petitioner, he did not argue in his second amended post-conviction petition
    that he was ineligible for the death penalty due to his intellectual disability but argued that
    he was ineligible due to his “mental age.”
    We note that in the petitioner’s second amended petition where he asserts that trial
    counsel were ineffective, he also asserts that his I.Q. scores fell within the intellectually
    disabled range. In raising an “Atkins/Roper Claim,” the petitioner cited to Atkins and Van
    Tran, both of which held that the execution of intellectually disabled defendants was
    -18-
    unconstitutional. Although the petitioner did not specifically state in his “Atkins/Roper
    Claim” that he was intellectually disabled, this independent claim could be construed as an
    intellectual disability claim based upon the totality of the allegations raised in the second
    amended petition. The petitioner did not challenge the post-conviction court’s findings on
    this issue in his appeal of the denial of post-conviction relief.
    Regardless of whether the issue of intellectual disability was properly before the post-
    conviction court, the petitioner raised the issue in his first amended post-conviction petition
    filed in January 2002. Therefore, he recognized at the time of his post-conviction
    proceedings that intellectual disability was a possible issue.
    The petitioner contends that the reports of Dr. Auble and Dr. Brown are “newly
    available” evidence or evidence that did not become available for presentation until after the
    trial concluded. While the petitioner acknowledges that his intellectual disability existed
    before trial, he argues that circumstances beyond his control prevented him from presenting
    such evidence. He maintains that his intellectual disability first became available for
    presentation following our supreme court’s opinion in Coleman.
    Generally, to qualify as newly discovered evidence, the evidence must not have been
    known to the defendant at the time of trial. Wlodarz v. State, 
    361 S.W.3d 490
    , 506 (Tenn.
    2012). A narrow exception, however, exists where “‘although not newly discovered
    evidence, in the usual sense of the term,’” the “‘availability’” of the evidence “‘is newly
    discovered.’” 
    Harris, 301 S.W.3d at 160-61
    (quoting Taylor v. State, 
    171 S.W.2d 403
    , 405
    (Tenn. 1943)); see David G. Housler, Jr. v. State, No. M2010-02183-CCA-R3-PC, 
    2013 WL 5232344
    , at *44 (Tenn. Crim. App. Sept. 17, 2013).
    Courts have applied this narrow exception where previously unavailable evidence
    became available following a change in factual circumstances. See, e.g., 
    Taylor, 171 S.W.2d at 405
    (applying the exception when at the time of trial, one witness was hospitalized and one
    witness was working outside the state and they later became available to testify); Misty Jane
    Brunelle v. State, No. E2010-00662-CCA-R3-PC, 
    2011 WL 2436545
    , at *10 (Tenn. Crim.
    App. June 16, 2011) (noting that the petitioner should have sought coram nobis relief when
    a DCS report that was known to the petitioner but sealed at the time of trial later became
    available), perm. app. denied (Tenn. Oct. 18, 2011). Many of these cases involve testimony
    of a co-defendant or a witness who previously refused to testify by asserting the
    constitutional privilege against self-incrimination. See, e.g., David G. Housler, Jr., 
    2013 WL 5232344
    , at *44; United States v. Guillette, 
    404 F. Supp. 1360
    , 1372-74 (D. Conn. 1975);
    Brantley v. State, 
    912 So. 2d 342
    , 343 (Fla. App. 2005); State v. Williams, 
    246 So. 2d 4
    , 6
    (La. 1971); Commonwealth v. Brown, 
    431 A.2d 343
    , 344 (Pa. Super. Ct. 1981); State v.
    Gerdes, 
    258 N.W.2d 839
    , 843 (S.D. 1977).
    -19-
    The petitioner has failed to cite to any authority applying this narrow unavailability
    exception based upon a change in the law. Issues regarding whether a change in the law
    should apply post-trial relate to retroactivity and are more properly addressed in post-
    conviction proceedings or a motion to reopen post-conviction proceedings. Even if the
    unavailability exception applies to a change in law, the petitioner is not entitled to relief.
    The petitioner argues that prior to Coleman, courts only could consider raw I.Q. scores
    in determining intellectual disability pursuant to Tennessee Code Annotated section 39-13-
    203(a)(1). The Tennessee Supreme Court in Keen, however, stated that Howell did not
    provide for such a limitation. 
    Keen, 398 S.W.3d at 603
    . Rather, the court in Howell
    instructed trial courts to “‘giv[e] full and fair consideration to all tests administered to the
    petitioner’” and to “‘fully analyz[e] and consider[] all evidence presented’” concerning the
    petitioner’s I.Q. 
    Id. (quoting Howell,
    151 S.W.3d at 459).
    Moreover, the Tennessee Supreme Court noted in Coleman that its review of all cases
    involving the application of section 39-13-203 reflected that “the parties and the courts have
    not been limiting their consideration of whether a criminal defendant has a ‘functional
    intelligence quotient of seventy (70) of below’ to the defendant’s raw I.Q. test scores.”
    
    Coleman, 341 S.W.3d at 247
    . The court explained:
    For example, in Cribbs v. State, both the State and Mr. Cribbs presented
    evidence that his raw I.Q. test scores did not accurately reflect his actual I.Q.
    On behalf of the State, Dr. Wyatt Nichols stated that Mr. Cribbs’s intellectual
    level was actually higher than the I.Q. test score of 73 and was “[m]ore like the
    mid to high 80s.” Cribbs v. State, 
    2009 WL 1905454
    , at *22, 32. Dr. Pamela
    Auble, appearing for Mr. Cribbs, stated in her initial report that his I.Q. was
    between 71 and 84. Cribbs v. State, 
    2009 WL 1905454
    , at *17. However, Dr.
    Auble later revised her opinion based on information obtained after her first
    report and concluded that Mr. Cribbs’s I.Q. was below seventy. Cribbs v.
    State, 
    2009 WL 1905454
    , at *17. Based on all the evidence, the trial court
    concluded that the I.Q. test that produced the score of 73 was the most reliable.
    The trial court found that Dr. Auble’s explanation for the change in her
    opinion was not credible and that Dr. Nichols’s testimony was persuasive.
    Cribbs v. State, 
    2009 WL 1905454
    , at *32.
    The consideration of I.Q. test scores in Cribbs v. State is but one
    example of cases in which the State has argued and presented evidence that
    scores on I.Q. tests should not be considered on their face value. See also
    State v. 
    Strode, 232 S.W.3d at 5
    (the State presented evidence challenging the
    score on the basis that the defendant had been malingering); Smith v. State,
    -20-
    
    2010 WL 3638033
    , at *30 (the State presented evidence that the defendant’s
    I.Q. test score should be discounted because of malingering); Van Tran v.
    State, 
    2006 WL 3327828
    , at 4-6 (the State argued that the Vietnamese-born
    defendant’s low I.Q. test score reflected cultural and linguistic bias).
    
    Id. The Tennessee
    Supreme Court concluded that these cases reflected “the parties’ and the
    courts’ existing awareness that, as a practical matter, a criminal defendant’s ‘functional
    intelligence quotient’ cannot be ascertained based only on raw I.Q. scores.” 
    Id. The court
    further concluded that the cases also reflected “the parties’ conclusion that Tenn. Code Ann.
    § 39-13-203(a) does not prevent them from presenting relevant and competent evidence,
    other than the defendant’s raw I.Q. test scores, either to prove or to disprove that the
    defendant’s ‘functional intelligence quotient’ when the crime was committed was ‘seventy
    (70) or below.’” 
    Id. at 247-48.
    The petitioner asserts that this court has recognized that the legal standard for
    establishing intellectual disability following Coleman is different from the legal standard
    prior to Coleman. The only case to which the petitioner cites that was decided following
    Keen is Sidney Porterfield v. State, No. W2012-00753-CCA-R3-PD, 
    2013 WL 3193420
    (Tenn. Crim. App. June 20, 2013). The petitioner cites to a portion of Sidney Porterfield in
    which this court in summarizing Howell stated that “the demarcation of an I.Q. score of 70
    was a ‘brightline’ rule that must be met.” Sidney Porterfield, 
    2013 WL 3193420
    , at *22-23.
    We note that throughout Howell, the Tennessee Supreme Court referred to an “I.Q. score”
    and a “range of I.Q. scores.” See 
    Howell, 151 S.W.3d at 457-59
    . In Coleman, the court
    clarified that Howell did not limit the determination of a defendant’s I.Q. to “raw I.Q. test
    scores.” 
    Coleman, 341 S.W.3d at 247
    . The sentence in Sidney Porterfield upon which the
    petitioner relies appeared in a section of this court’s opinion where we provided a summary
    of Tennessee Supreme Court cases regarding the law of intellectual disability, much like the
    summary that we set forth above. In referring to “an I.Q. score of 70” as a “brightline rule,”
    this court in summarizing Howell was merely employing the terminology used by our
    supreme court in Howell.
    The petitioner in Sidney Porterfield did not raise the issue of whether the standard for
    determining intellectual disability prior to Coleman differed from the standard following
    Coleman, and this court did not address the issue. Rather, the Tennessee Supreme Court
    specifically held in Keen that Howell did not limit a court’s determination of a defendant’s
    I.Q. to raw I.Q. scores, and this holding in Keen controls.
    We note that recently in Hall v. Florida, __ U.S. __, 
    134 S. Ct. 1986
    (2014), the
    United States Supreme Court held that Florida courts’ interpretation of the significantly
    subaverage intellectual functioning provision in Florida’s intellectual disability statute is
    -21-
    unconstitutional. Florida courts interpreted the statute as requiring a strict I.Q. raw test score
    of 70 without consideration of the standard error of measurement. Hall, __ U.S. __, 134 S.
    Ct. at 2000. The Supreme Court agreed “with medical experts that when a defendant’s I.Q.
    test score falls within the test’s acknowledged and inherent margin of error, the defendant
    must be able to present additional evidence of intellectual disability, including testimony
    regarding adaptive deficits.” 
    Id. at 2001.
    Unlike the defendant in Hall, however, the
    petitioner has not been precluded during his original trial or during post-conviction
    proceedings from presenting evidence, other than his raw I.Q. test scores, to establish that
    his “functional intelligence quotient” when he committed the murder was 70 or below.
    Contrary to the petitioner’s claims, the information in the affidavits of Dr. Auble and
    Dr. Brown was available for presentation prior to Coleman. Dr. Auble and Dr. Brown
    testified during post-conviction proceedings in August 2007, following the Tennessee
    Supreme Court’s release of Howell in 2004. Nothing prevented the petitioner from
    presenting during post-conviction proceedings relevant and competent evidence, other than
    his raw I.Q. test scores, to prove that his “functional intelligence quotient” when the crime
    was committed was “seventy (70) or below.”
    Almost five years after Dr. Auble and Dr. Brown testified, the petitioner filed his
    petition seeking to present testimony from these same experts, both of whom reached a
    conclusion that differed from the conclusion they had reached during post-conviction
    proceedings. The information upon which Dr. Auble and Dr. Brown relied was available to
    the petitioner at the time of the trial and the post-conviction hearing. Nothing prevented Dr.
    Auble from administering I.Q. testing and the Independent Living Scale to the petitioner
    prior to the post-conviction proceedings. The new testing in 2012 is merely cumulative to
    the evidence previously available to the petitioner. See 
    Wlodarz, 361 S.W.3d at 499
    (noting
    that newly discovered evidence that is merely cumulative does not warrant the issuance of
    a writ). Because the petitioner’s claim could have been litigated at trial or during post-
    conviction proceedings, the grounds are not “later-arising,” justifying the tolling of the one-
    year statute of limitations. See Tenn. Code Ann. § 40-26-105(b) (confining coram nobis
    relief to “matters that were not or could not have been litigated on the trial of the case, on a
    motion for a new trial, on appeal in the nature of a writ of error, on writ of error, or in a
    habeas corpus proceeding” and requiring the defendant to show that he was without fault in
    failing to present the evidence at the proper time).
    Even if Coleman provides new grounds for relief, the petitioner did not file his
    petition for writ of error coram nobis until January 2013, approximately twenty-one months
    following the issuance of Coleman. Moreover, the coram nobis petition does not relate back
    to the motion to reopen filed in April 2012. “No statute in Tennessee nor tolling rule
    developed at common law provides that the time for filing a cause of action is tolled during
    -22-
    the period in which a litigant pursues a related but independent cause of action.” 
    Harris, 301 S.W.3d at 146
    . When the petitioner filed his motion to reopen, he chose not to file a petition
    for writ of error coram nobis. It was not until after our supreme court released its opinion
    in Keen rejecting the bases upon which the petitioner relied in filing his motion to reopen that
    the petitioner filed a petition for writ of error coram nobis. A petitioner may not delay
    presenting a coram nobis claim until “every other avenue of relief ha[s] been exhausted.”
    Billy Ray Irick v. State, No. E2010-02385-CCA-R3-PD, 
    2011 WL 1991671
    , at *18 (Tenn.
    Crim. App. May 23, 2011), perm. app. denied (Tenn. Aug. 25, 2011). Therefore, we
    conclude that under the circumstances of this case, the delay in seeking coram nobis relief
    is unreasonable.
    We conclude that the trial court properly found that the petitioner’s petition was
    barred by the one-year statute of limitations. Accordingly, the petitioner is not entitled to
    coram nobis relief.
    C. Declaratory Judgment
    The petitioner asserts that the trial court erred in denying his motion for a declaratory
    judgment pursuant to Tennessee Code Annotated section 29-14-102. Section 29-14-102
    provides that “[c]ourts of record within their respective jurisdictions have the power to
    declare rights, status, and other legal relations whether or not further relief is or could be
    claimed.” The State asserts that the petitioner’s claim is barred by the doctrine of sovereign
    immunity.
    Article I, section 17 of the Tennessee Constitution provides that “[s]uits may be
    brought against the State in such manner and in such courts as the Legislature may by law
    direct.” “The traditional construction of the clause is that suits cannot be brought against the
    State unless explicitly authorized by statute.” Colonial Pipeline Co. v. Morgan, 
    263 S.W.3d 827
    , 849 (Tenn. 2008). Tennessee Code Annotated section 20-13-102 further provides: “No
    court in the state shall have any power, jurisdiction, or authority to entertain any suit against
    the state, or against any officer of the state acting by authority of the state, with a view to
    reach the state, its treasury, funds, or property . . . .”
    Sovereign immunity generally extends to state agencies and state officers acting in
    their official capacity. Colonial Pipeline 
    Co., 263 S.W.3d at 849
    . The doctrine of sovereign
    immunity, however, does not bar suits against state officers to prevent them from enforcing
    an allegedly unconstitutional statute. 
    Id. at 849-50.
    Our supreme court has held that a “suit
    against state officers attacking the constitutionality of a statute of the State is not a suit
    against the State.” 
    Id. at 850
    (citations omitted). The court reasoned as follows:
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    Essentially, an officer acting pursuant to an unconstitutional statute does not
    act under the authority of the state; thus, the officer does not enjoy the
    immunity that would normally be granted pursuant to official authority. In
    other words, the officer loses immunity when acting beyond the scope of the
    power of the State, and the power of the State is limited by the state and
    federal constitutions. The issue is not whether the State has waived sovereign
    immunity for this specific classification of suit; sovereign immunity simply
    does not attach.
    
    Id. The petitioner
    contends that the doctrine of sovereign immunity does not apply
    because he had made an “as-applied” challenge to the constitutionality of Tennessee Code
    Annotated section 40-23-116. This section provides for the removal of the defendant from
    the county in which he was convicted to the state penitentiary where the death chamber is
    located, identifies those who may witness the execution, and regulates photographic and
    recording devices. According to the petitioner, section 40-23-116 is unconstitutional as
    applied to him because he is intellectually disabled. The petitioner, however, did not
    challenge the constitutionality of section 40-23-116 in his declaratory judgment action filed
    in the trial court. Regardless, the petitioner is not entitled to relief regarding this issue.
    The actual focus of the petitioner’s challenge is not upon section 40-23-116 but upon
    the sentencing component of his judgment. Section 40-23-116 merely ensures the privacy
    of the execution. The petitioner seeks to raise an issue of intellectual disability. Regardless
    of whether the petitioner is intellectually disabled or not, the issue of intellectual disability
    has no effect on the constitutionality of section 40-23-116. The petitioner may not challenge
    the constitutionality of a statute in an effort to circumvent the doctrine of sovereign immunity
    when the statute has no relation to the issue that the petitioner actually seeks to raise.
    Accordingly, the doctrine of sovereign immunity applies to bar the petitioner’s declaratory
    judgment action against the State.
    D. Intellectual Disability Statute
    The petitioner asserts that the intellectual disability provisions in Tennessee Code
    Annotated section 39-13-203 provide an independent cause of action allowing him to
    challenge his eligibility for the death penalty. In construing a statute, we must ascertain and
    give effect to the legislative intent without unduly restricting or expanding a statute’s
    coverage beyond its intended scope. State v. Strode, 
    232 S.W.3d 1
    , 9 (Tenn. 2007). We
    must give the words in the statute their natural and ordinary meaning in light of their
    statutory context. 
    Keen, 398 S.W.3d at 610
    . We must avoid any “forced or subtle
    -24-
    construction that would limit or extend the meaning of the language.” 
    Id. (citation omitted).
    “If the statutory language is clear and unambiguous, we apply the statute’s plain language
    in its normal and accepted use.” 
    Id. Tennessee Code
    Annotated section 39-13-203 lists the requirements of intellectual
    disability, the burden of proof, and the procedure when the issue is raised at trial. The plain
    language of the statute does not create an independent cause of action allowing a defendant
    to challenge his or her eligibility for the death penalty. Had the General Assembly intended
    to create a separate and independent cause of action in which to allege intellectual disability,
    they would have stated so in the statute. See, e.g., Tenn Code Ann. § 40-30-301 et seq.
    (creating a cause of action to allow certain defendants to request DNA testing of evidence).
    The petitioner is not entitled to relief with regard to this issue.
    CONCLUSION
    For the foregoing reasons, we affirm the judgment of the trial court.
    ________________________________________
    ALAN E. GLENN, JUDGE
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