David G. Housler, Jr. v. State of Tennessee ( 2013 )


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  •         IN THE COURT OF CRIMINAL APPEALS OF TENNESSEE
    AT NASHVILLE
    March 20, 2012 Session
    DAVID G. HOUSLER, JR. v. STATE OF TENNESSEE
    Direct Appeal from the Circuit Court for Montgomery County
    No. 39217     John H. Gasaway, III, Judge
    No. M2010-02183-CCA-R3-PC - Filed September 17, 2013
    The Petitioner, David G. Housler, Jr., filed petitions for post-conviction relief and writ of
    error coram nobis in the Montgomery County Circuit Court, seeking relief from his
    convictions for four counts of felony murder and resulting consecutive sentences of life in
    confinement. After an evidentiary hearing, the post-conviction court granted the petitions.
    On appeal, the State contends that the court erred by finding that the Petitioner was entitled
    to any relief. Based upon the oral arguments, the record, and the parties’ briefs, we affirm
    the post-conviction court’s granting the petition for post-conviction relief but conclude that
    the court erred by granting the petition for writ of error coram nobis. Nevertheless, because
    the Petitioner has shown that he is entitled to post-conviction relief based upon his receiving
    the ineffective assistance of counsel at trial, the case is remanded to the trial court for further
    proceedings consistent with this opinion.
    Tenn. R. App. P. 3 Appeal as of Right; Judgments of the Circuit Court are Affirmed
    in Part, Reversed in Part, and the Case is Remanded.
    N ORMA M CG EE O GLE, J., delivered the opinion of the court, in which J ERRY L. S MITH and
    R OGER A. P AGE, JJ., joined.
    Robert E. Cooper, Jr., Attorney General and Reporter; Mark A. Fulks, Assistant Attorney
    General; and Joseph Baugh, District Attorney General, for the appellant, State of Tennessee.
    Paul A. Hemmersbaugh, Bryson Bachman, James Owens, Jason Vendel, and Michael J.
    Flanagan, Washington, DC, and Susan L. Kay and Ben Bolinger, Nashville, Tennessee, for
    the appellee, David G. Housler, Jr.
    OPINION
    I. Factual Background
    In the early morning hours of January 30, 1994, four employees of the Taco Bell in
    Clarksville were shot and killed during a robbery. State v. Housler, 
    193 S.W.3d 476
    , 479
    (Tenn. 2006). In June 1996,1 a jury convicted Courtney B. Mathews, a part-time employee
    of the restaurant and a soldier stationed at Fort Campbell, Kentucky, of the murders and
    robbery. Id. at 481. Mathews was sentenced to life without the possibility of parole. Id.
    On March 7, 1994, police officers interviewed the Petitioner, also a soldier stationed
    at Fort Campbell. Id. at 482. At the time of the interview, the Petitioner was a suspect in a
    robbery committed in front of Grandpa’s Hardware Store in Clarksville about one week
    before the Taco Bell crimes. Id. During the interview, the Petitioner denied any involvement
    in the Taco Bell robbery or the robbery outside Grandpa’s. Id. However, he was later
    charged with aggravated robbery for the Grandpa’s robbery. Id. While the Petitioner was
    being held on that charge, he told pretrial counsel that he had information about the Taco
    Bell crimes and entered into an agreement with the State to serve as a witness against
    Mathews in return for a reduced bond and a lesser charge on the Grandpa’s robbery. Id. On
    March 21, 1994, the Petitioner gave a statement in which he said the following:
    He met Mathews during a party at [a] trailer in Oak Grove,
    Kentucky[,] on January 21, 1994. Mathews said in the presence
    of several people, including Housler, that he had a place to
    rob--his place of work--and that when he did it, he would not
    leave any witnesses. He also stated that once he committed the
    robbery, they could read about it in the newspapers. Housler
    said that he did not see Mathews again until March 15, when the
    two were in jail. Housler claimed that Mathews admitted
    committing the Taco Bell murders and giggled about it.
    Mathews also claimed to have attempted suicide while in jail.
    Housler also mentioned that his first statement to investigators
    on March 7 was not truthful because he did not want to get
    involved.
    Id. After giving the statement, the Petitioner was released on bond, and he returned to
    Kentucky. Id.
    1
    The supreme court opinion mistakenly states that Mathews was convicted in June 1994.
    -2-
    In October 1995,2 authorities asked the Petitioner to return to Clarksville to resolve
    inconsistencies between his statements and information gathered from other sources. Id. On
    October 11, 1995, the Petitioner admitted to encouraging Mathews to commit the Taco Bell
    robbery and became a suspect in the murders. Id. On October 19, 1995, the Petitioner
    entered into a “proffer agreement” with the State, agreeing to provide truthful information
    about the murders and to serve as a witness against Mathews in return for a fifteen-year
    sentence for conspiracy to commit murder for the Taco Bell crimes and a four-year sentence
    for the Grandpa’s robbery, to be served concurrently. Id.
    The next day, October 20, 1995, the Petitioner and pretrial counsel met again with the
    district attorney general, and the Petitioner gave the following written statement:
    Housler met Mathews at the trailer in Kentucky about a week
    before the Taco Bell murders. At the party, Mathews, Housler,
    and Charlie Brown talked about robberies and other crimes that
    each had committed. Housler said that he bragged about
    committing the robbery outside Grandpa’s. Mathews brought
    up the idea of robbing the place where he worked. Mathews
    said he would go in and leave no witnesses. Housler told
    Mathews that he doubted he would commit the crime but, if
    Mathews would, he would go with him. When Housler asked
    Kevin “Red” Tween if he knew about the plan, Tween
    responded, “[W]hatever, whenever.” Melanie Darwish then
    approached Housler and Mathews and said she would
    participate as well. Housler stated that Mathews was carrying
    a .9 millimeter handgun under his clothes at this party. On
    January 29, 1994, Housler arrived with Sulyn Ulangca at the
    trailer around nightfall. Mathews was in the trailer with Tween,
    Darwish, Kendra Corley, and Dana Ulangca (Sulyn’s brother).
    Tween told Housler that “tonight is the night” for robbing the
    Taco Bell, and he asked Housler to get some ammunition.
    Housler left the trailer and visited someone called “Hippie
    Dude,” who sold him a box of shotgun shells and box of .9
    millimeter bullets. Housler returned to the trailer at around
    11:00 p.m. Dana Ulangca was asleep, and Kendra Corley had
    left. Sulyn immediately pleaded with him not to participate in
    the robbery. While [Housler] argued with her, the others started
    2
    The supreme court opinion mistakenly states that the Petitioner returned to Clarksville in
    October 1994.
    -3-
    to plan the robbery and killings. Housler did not hear the
    details. By the time Housler’s argument with Sulyn ended, the
    group was ready to leave. Housler drove his white Tracer, and
    Darwish drove her red Tempo. Tween was wearing a dark-blue
    hooded jacket and blue jeans, and Mathews was wearing a black
    knee-length jacket. The group stopped at the Minit Mart for
    beer and cigarettes. On the ride to Taco Bell, Mathews told
    Tween to get the register, and he would take care of the safe.
    Tween had a .9 millimeter pistol, while Mathews seemed to
    have the shotgun--a twenty-four inch Mossberg pump--stuffed
    under his coat. However, during the drive, Mathews told
    Housler that Corley placed the guns in a trash can at the
    restaurant where they would be available to him. Housler had
    his .9 millimeter handgun.
    [U]pon arriving at the Taco Bell, [Housler] pulled up to the
    drive-through window. Mathews exited the car and tapped on
    the window, which was opened by a heavy-set woman with
    brown hair. Mathews stated that he needed to get inside to
    retrieve his wallet or driver’s license. During this time, Housler
    saw Darwish’s car in the mall parking lot. Tween then told
    Housler to keep the car running and that if anyone pulled up to
    the restaurant to honk the horn twice and leave. Tween got out
    of the car and ran behind the dumpsters. Housler decided not to
    go inside because he was fighting with Sulyn. He pulled up
    parallel to the main double doors of the restaurant. Housler saw
    Mathews and the woman walk toward the counter area near the
    bathrooms. After about twenty minutes, he heard ten to fifteen
    loud pops from inside the building, which lasted for about two
    to three minutes. After the pops stopped, Housler heard a loud
    bang, which “sounded like a metal door being swung open[,]”
    and within seconds he saw Tween run from behind the Taco
    Bell to the dumpsters. Next, he heard a similar bang and then
    saw another person exit the Taco Bell and run in the direction of
    the dumpsters. He put the car in gear and drove, almost hitting
    an older model Chevelle with a Tennessee license plate starting
    “DFN.” He stated that Darwish drove the getaway car with
    Tween and Mathews inside. Housler drove to the nearby Dingo
    Boot parking lot, where the group had previously agreed to
    meet. Darwish pulled up soon after with Mathews and Tween.
    -4-
    Mathews got out of Darwish’s car, opened the trunk, and threw
    in the shotgun and a Taco Bell bag; Tween got out and threw in
    his pistol. Housler then asked Tween what happened. Tween
    said Mathews took all the employees in the back and “flipped
    out.” Tween told Housler to leave, and Housler returned to the
    trailer. Tween and Darwish arrived at the trailer about thirty
    minutes later without Mathews. Housler asked where his cut of
    the money was, and Tween said that Mathews would bring it
    later. Tween also said that Mathews shot the victims in the head
    “gangster-style” to ensure that they were dead. Housler left the
    trailer an hour later, telling Tween to wait there for his cut of the
    money. Housler mentioned that Mathews said that he got
    [$1,500] from the robbery. Housler drove to Jennifer Ellis’s
    house and stayed there until 6:00 p.m. that same day. He went
    back to the trailer and asked Tween for his money, but Tween
    said that Mathews had not returned. Housler left his car on the
    road where Jennifer Ellis lived because he thought it would be
    connected to the murders. He believed that police later
    impounded his car. Housler stated he did not see Mathews
    again until they met in jail.
    Id. at 482-84.
    Investigators contacted Sulyn Ulangca, who did not corroborate the Petitioner’s
    statement. Id. at 484. When Ulangca tried to confront the Petitioner, he refused to see her
    and “confessed to implicating an innocent person.” Id. As a result, prosecutors told the
    Petitioner that he had breached the proffer agreement and that they were revoking it. Id. The
    Petitioner was charged with four counts of felony murder, and the State filed a notice of
    intent to seek the death penalty. Id. Later, the State withdrew the notice of intent to seek the
    death penalty and filed a notice of intent to seek imprisonment for life without the possibility
    of parole. Id.
    The Petitioner was tried for the murders in November 1997. Id. At the Petitioner’s
    trial, the State’s strategy was
    (1) to establish [Housler’s] guilt in committing the Taco Bell
    robbery and murders by using many of the same witnesses and
    much of the same evidence that the prosecution used at
    Mathews’ trial and (2) to establish Housler’s guilt in the same
    crimes by using his written statement, which placed him with
    -5-
    Mathews as a lookout on the night of the killings, and with the
    testimony of several corroborating witnesses.
    Id. at 484. The Petitioner objected to the admission of his confession at trial on the basis that
    it was “substantially false.” Id. However, the trial court ruled that the statement was
    admissible. Id. The statement was admitted into evidence, and the State established during
    the Petitioner’s trial that “significant portions” of it were false. Id.
    Our supreme court described the following relevant evidence presented at the
    Petitioner’s trial:
    Michele Antaya testified that on January 29, 1994, at
    approximately 11:15 p.m., she stopped at the Taco Bell
    drive-through window. According to Antaya, she saw an
    African-American male walk from behind the Taco Bell
    dumpsters toward her car. She described him as around five feet
    ten inches tall, stocky, and with short hair shaved on the sides.
    She testified that he was wearing a dark jacket with a hood and
    dark pants. This description matched Mathews.
    Yowanda Maurizzio went through the Taco Bell
    drive-through at about 1:15 a.m. on January 30, 1994. She
    observed a black male speaking with a black female inside the
    restaurant. Only one other African-American male besides
    Mathews was employed at the restaurant, and he was not on
    duty the day of the murders.
    Frankie Sanford testified that he was at the Taco Bell
    drive-through about 1:30 a.m. on January 30. He said that he
    saw Mathews dressed in his Taco Bell uniform working inside
    the restaurant.
    Jacqueline Dickinson stopped at a traffic light in front of
    the Taco Bell around 2:40 a.m., looked into the restaurant, and
    saw a white male at the counter looking toward the Long John
    Silver’s lot next door. According to Dickinson, the man was
    wearing a long green jacket with a big hood and a dark pair of
    jeans. She described the man as five feet nine inches to six feet
    tall, medium build, with short hair brown hair cut in a military
    style. She also saw in the Taco Bell parking lot a white car
    -6-
    “facing inward towards the building.” The car was not in the
    same position as a white car owned by one of the victims that
    was parked there that night.
    Damien Cromartie stopped at the Taco Bell around 3:00
    a.m. He observed a few vehicles in the parking lot and a brown
    or burgundy sedan parked in the Two Rivers Mall parking lot
    behind the Taco Bell. When he pulled into the drive-through
    lane, he saw a large piece of cardboard in the window. On the
    cardboard he saw the silhouettes of two or three people moving
    around inside the restaurant.
    Bill Hudspeth testified that, between 2:00 and 2:30 a.m.
    on January 30, 1994, he drove by the Taco Bell and saw a white
    male run diagonally from an area behind the restaurant to the
    front of his car and then toward a muffler shop across the street.
    Hudspeth described the male as between five feet nine inches
    and six feet tall, with short hair, and a stocky build. Hudspeth
    said another white male with short hair, a stocky build, and a bit
    taller than the other individual was standing near the muffler
    shop.
    Mark Jolly testified that he was in the Shoney’s parking
    lot across the street from the Taco Bell between 2:30 and 3:00
    a.m. on January 30, 1994, when he heard two loud bangs and
    saw a man running from the back of the Taco Bell. According
    to Jolly, the man was a Puerto Rican or a light-skinned
    African-American male, wearing shorts, and carrying something
    rolled up in a brown bag in his left hand. After he saw the man,
    Jolly observed the lobby lights in the Taco Bell flicker on and
    off two or three times.
    Allen Ceruti testified that he passed by the Taco Bell
    between 4:20 and 4:30 a.m. He observed an African-American
    male standing at the open back door.
    Charlie Brown testified that Mathews and Housler were
    both at a party together at the trailer in Oak Grove, probably on
    January 21. During his testimony, Brown recanted a statement
    he made in November 1995, wherein he said that he heard
    -7-
    Mathews talking about robbing the place where he worked.
    Melanie Darwish testified that she may have [loaned] her
    car to Housler on the night of the robbery and murders, although
    she was not sure. According to Darwish, she was at home in
    bed on that night. Darwish said that Mathews had been at a
    party at the trailer; however, she did not remember Housler
    being there.
    Lopez Gaddes, a convicted drug trafficker, was in the
    Montgomery County Jail with Housler in 1994. Housler told
    Gaddes that he knew Mathews and that Housler, Charlie Brown,
    and Mathews had conversations about robbing the Taco Bell.
    Housler told him that the first conversation about the robbery
    took place at a party a week or two before the murders. Housler
    also told Gaddes that the group again talked about committing
    the robbery at the barracks. When Gaddes asked Housler if he
    was scared, Housler responded that he was not because
    Mathews acted as the trigger man.
    Jason Carr testified that he was incarcerated with Housler
    in the Montgomery County Jail during March 1994. During a
    card game with Housler and Charlie Brown, one of the two men
    (he could not remember which) stated that Housler’s car was
    used in the getaway of the Taco Bell murders.
    Larry Underhill, another inmate, testified that Housler
    told him, while the two were in jail, that he killed the Taco Bell
    employees. Underhill said that Housler told him that the victims
    were shot execution-style. Housler also asked Underhill about
    the possibility of redemption for sin.
    Christopher Ester, a convicted felon, frequently visited
    the trailer in Oak Grove. Ester testified that he saw Mathews at
    the trailer on January 29, 1994. Mathews talked about the
    robberies he had committed. According to Ester, Mathews and
    Housler had a conversation that night. Ester testified that
    Mathews left the trailer around 12:30 or 1:00 a.m. and that
    Housler left about 2:30 or 3:00 a.m. after he and Ulangca got
    into an argument. Housler was supposed to call and let the
    -8-
    group know his whereabouts, but he never did.
    Orlando Gill also visited the trailer. He believed that he
    met Mathews the weekend before the murders, when Kendra
    Corley brought Mathews to the trailer. He observed Housler
    and Mathews conversing in the kitchen.
    Hector Ortiz also saw Mathews at the trailer with Corley
    before the murders. He likewise observed Mathews and Housler
    conversing. Ortiz was at the trailer on the night of the murders,
    and he saw Housler and Ulangca there but not Mathews. When
    he left around 1:00 a.m., neither Housler nor Ulangca was
    present in the trailer. When he returned to the trailer around
    2:30 or 3:00 a.m., the couple still was not there.
    Kendra Corley testified that Mathews did not go to a
    party at the trailer on January 21, 1994, because he was working.
    Corley stated that she did bring Mathews to the trailer on
    Saturday, January 22, and they arrived between 9:30 and 10:00
    p.m. Corley stated that she did not go to the trailer with
    Mathews on January 28. According to Corley, Mathews gave
    her [$255] in five-dollar bills just before his suicide attempt.
    Corley also identified the black jacket as belonging to Mathews.
    James Bowen testified that Corley brought Mathews to
    the party a week before the murders. Bowen overheard Housler
    and Mathews discussing the robbery of Taco Bell. According
    to Bowen, Housler and Mathews argued over who would do the
    shooting and who would be the lookout. Bowen testified that
    Mathews stated they would rob Taco Bell because, since
    Mathews worked there, it would be easier for them. Bowen
    stated that he saw Housler and Ulangca go into the trailer’s
    bedroom about 2:00 a.m. and that they were still there when he
    woke up.
    Housler testified in his own defense. He denied any
    involvement in the robbery and murders. He asserted that his
    October 20 statement was wholly false and concocted from
    jailhouse rumors and newspaper reports. Housler claimed that
    in order to get out of jail he lied about knowing of Mathews’
    -9-
    involvement in the crimes. He also asserted an alibi defense,
    saying that he was with Sulyn the entire night of the murders.
    At trial, Sulyn Ulangca now claimed that Housler was
    with her on the night of the murders. But she also admitted that
    she previously was unable to account for Housler’s whereabouts
    on the night of the killings.
    Id. at 485-87.
    On November 21, 1997, the jury convicted the Petitioner of four counts of felony
    murder and sentenced him to life. Id. at 487. After a sentencing hearing, the trial court
    ordered that the Petitioner serve the life sentences consecutively. Id. The trial court denied
    the Petitioner’s motion for a new trial, and this court and our supreme court affirmed his
    convictions. Id. at 487, 495.
    In May 2007, the Petitioner timely filed a pro se petition for post-conviction relief,
    alleging, in pertinent part, that he received the ineffective assistance of counsel. The post-
    conviction court appointed counsel. On January 30, 2009, counsel filed a document titled
    “Amended Petition for Post-Conviction Relief and, Alternatively, Motion for Writ of Error
    Coram Nobis.” In the amended petition for post-conviction relief, the Petitioner raised
    numerous claims of ineffective assistance of counsel in relation to the “proffer agreement”
    he made with the State on October 19, 1995, and the statements he gave about the crimes,
    particularly the “proffer statement” he gave on October 20, 1995. In the petition for writ of
    error coram nobis, the Petitioner alleged actual innocence based on newly discovered
    evidence. The State filed a motion to dismiss the petition for writ of error coram nobis on
    the basis that the Petitioner filed it outside the one-year statute of limitations. The post-
    conviction court denied the motion, concluding that due process required tolling the statute
    of limitations.
    II. Post-Conviction/Error Coram Nobis Evidentiary Hearing
    The post-conviction court held an evidentiary hearing in December 2009. Relevant
    to the issues addressed in this opinion, the following evidence was presented at the hearing:
    The Petitioner testified that in March 1994, the Civil Investigative Division (CID)
    arrested him for being absent from the Army without leave (AWOL). He said that while he
    was being detained, a “T.B.I. guy . . . [Agent] Puckett and somebody else” questioned him
    about the Grandpa’s robbery and the Taco Bell murders. He said that he did not remember
    receiving Miranda warnings before the questioning and that he told them he did not know
    -10-
    Courtney Mathews. The agents continued to question him, and the Petitioner denied any
    involvement in the Grandpa’s robbery or the Taco Bell crimes. On March 10, 1994, the
    Petitioner took a polygraph examination and failed the Grandpa’s portion of the test.
    Eventually, he truthfully admitted to the officers that he had participated in the Grandpa’s
    robbery. The Petitioner was moved to the Montgomery County Jail in Clarksville, his bond
    was set at $100,000, and pretrial counsel was appointed to represent him. The Petitioner
    admitted to pretrial counsel that he had committed the Grandpa’s robbery. He said pretrial
    counsel told him that “there’s really nothing I can do about that unless you know something
    about Taco Bell.”
    The Petitioner testified that information about the Taco Bell murders was on television
    and in the newspapers; that his girlfriend, Sulyn Ulangca, was pregnant; and that he wanted
    to get out of jail to help her. The Petitioner talked with a friend and fellow jail inmate,
    Charlie Brown, and made up a story. The Petitioner told pretrial counsel that he had
    information about the Taco Bell crimes, and pretrial counsel told him to write out the story.
    Pretrial counsel gave the story to the police. On March 21, 1994, the police talked with the
    Petitioner about the story. The Petitioner said he told them that prior to the Taco Bell crimes,
    he was at a “party trailer” in Oak Grove, Kentucky, and overheard Mathews and some other
    people talking about possibly committing a robbery. The Petitioner said he did not think the
    police would “buy” the story. Nevertheless, after he gave his March 21 statement, his bond
    was reduced to $10,000.
    The Petitioner testified that in April 1994, he was still in jail when the police
    questioned him about a statement they had taken from an individual named Michael Miller.
    Miller had told the police that he met the Petitioner while they were teenagers and that he
    overheard the Petitioner and Brown talking about participating in the Taco Bell crimes. The
    Petitioner told the police that he had never met Miller as a teenager, that he only knew Miller
    from their time together in jail, and that Miller’s statement was “all a lie.” In September
    1994, the Petitioner was still in jail when his bond was reduced to $1,000. The Petitioner
    finally managed to make bond and returned to Kentucky to live with his parents. He said he
    knew that he would have to go back to jail when the police figured out that his March 21
    statement was not true.
    The Petitioner testified that in October 1995, he learned that authorities wanted him
    to return to Clarksville. If he did not return, his bond would be revoked. The Petitioner
    returned to Clarksville on October 11 and met with pretrial counsel, but pretrial counsel did
    not prepare him for any interviews. The Petitioner and pretrial counsel went to the district
    attorney’s office and met with prosecutors and police officers. Prosecutors asked him about
    his March 21, 1994 statement, and the Petitioner retold his story about overhearing Mathews
    planning the Taco Bell robbery. The Petitioner said that on October 19, 1995, he returned
    -11-
    to Clarksville for more questioning, and prosecutors told him they knew his March 21
    statement had “some wrong stuff with it.” The Petitioner acknowledged that someone
    showed him gory photographs of the Taco Bell victims, told him that whoever committed the
    murders was going to “fry,” and told him that he “better tell the truth.” The Petitioner told
    everyone in the room, including pretrial counsel, that his March 21 statement was not true.
    After that revelation, pretrial counsel never asked to speak with the Petitioner privately, never
    stopped the interview, and never advised the Petitioner. The Petitioner said that he
    repeatedly asked for the questioning to stop and that he told them he wanted to leave. He
    said he was allowed to take bathroom breaks. He asked to smoke outside but was told he had
    to smoke in the interview room. At some point during the interview, everyone took a break,
    and the Petitioner was left alone in the room with Agent Jeff Puckett of the Tennessee
    Bureau of Investigation (TBI). Puckett’s demeanor became angry, and he questioned the
    Petitioner. After the break, everyone returned to the interview room, and the interview
    resumed. The Petitioner said he told them that he had “gass[ed] [Mathews] up,” meaning
    that he had “egged [Mathews] on.” Pretrial counsel pulled the Petitioner aside and told him
    that he had just incriminated himself in a conspiracy to commit first degree murder. The
    Petitioner did not understand how he had incriminated himself, and pretrial counsel did not
    explain it to him.
    The Petitioner testified that the prosecutors also said he had implicated himself. The
    Petitioner said that the prosecutors were “looking for something,” that he was “thinking . .
    . that it couldn’t [get] no worse,” and that he decided to make up more stories. At some
    point, pretrial counsel left with District Attorney General John Carney to talk about an
    agreement. When pretrial counsel returned, he had a written agreement and told the
    Petitioner that it was the best he could do for the Petitioner. The Petitioner said that the
    agreement required him to give a truthful statement and that it “also said that the State has
    to decide the truth, which I asked [pretrial counsel] about, because to me, that doesn’t make
    any sense.” Pretrial counsel did not explain the agreement to the Petitioner and never told
    him that if he lied, the State would be able to use his statement against him. If the Petitioner
    had known that the State could use his statement, he would not have signed the agreement.
    After the Petitioner signed the agreement, questioning resumed. The Petitioner said he
    changed his story frequently because he “would just follow their cues.” After the interview,
    he went to a hotel for the night.
    The Petitioner testified that the next day, October 20, he returned for another
    interrogation. The Petitioner said that Agent Puckett wrote down his statement and that his
    statement “was still basically that we were at the party and I gassed him up or something to
    that effect.” At some point, pretrial counsel left the room, and Agent Puckett told everyone
    present that the Petitioner had claimed to have given Mathews the idea to kill the victims.
    The Petitioner told Agent Puckett that that was not true. The Petitioner was told that he had
    -12-
    to take a polygraph for the statement. The Petitioner said that he did not think he received
    Miranda warnings before he took the polygraph and that pretrial counsel was not present
    during the examination. He said that after he took the polygraph, he was told that “something
    wasn’t right” and that he had to give another statement. The Petitioner said that he changed
    his story and that he “knew they were trying to get me, so I put almost everybody I knew in
    it.” In his final statement, the Petitioner claimed Sulyn Ulangca had been with him at the
    Taco Bell during the crimes. He said he wanted the questioning to be over and that he tried
    to make the story “easy to prove it’s a lie.”
    The Petitioner testified that Agent Puckett wrote out his final statement and that
    “some stuff was left out and some stuff was reworded.” The Petitioner said that he signed
    the statement and that he did not think pretrial counsel “was there for any of this.” The
    Petitioner said his final statement was “[c]ompletely different” from his previous statements
    and placed him at the scene of the crimes, which was “[c]ompletely false.” After the
    Petitioner signed the statement, he was allowed to return to Kentucky but had a beeper for
    the police to contact him. In early November 1995, authorities “beeped” the Petitioner and
    told him to return to Clarksville. The Petitioner thought that the authorities had discovered
    his October 20 statement was a lie and that he was going to go to jail for committing the
    Grandpa’s robbery. The Petitioner returned to Clarksville on November 7, 1995, and he and
    pretrial counsel went to the district attorney’s office. Pretrial counsel told the Petitioner that
    the police wanted him to confront Sulyn Ulangca. The Petitioner was ashamed that he had
    falsely implicated Ulangca and refused to confront her. He also told pretrial counsel that the
    final statement he gave on October 20 was “all a lie.” Pretrial counsel talked with the district
    attorney, returned to the Petitioner, and told him that if he did not confront Ulangca, he had
    breached the proffer agreement. The Petitioner told pretrial counsel that he would not
    confront Ulangca and asked pretrial counsel if he was under arrest. Pretrial counsel told him
    no, so the Petitioner tried to leave. He said that as he was “[g]oing down the steps,” two
    police officers grabbed him and arrested him. The Petitioner thought he was being arrested
    for the Grandpa’s robbery. He said that on the night of the Taco Bell robbery, he thought he
    was with Ulangca at his house or at the party trailer.
    The Petitioner testified that after he was indicted for the Taco Bell murders, lead
    counsel and co-counsel became his new attorneys for trial. Investigators Larry Wallace, Ron
    Lax, and Glori Shettles worked on his case. Trial counsel did not consult with the Petitioner
    about trial strategy. After the Petitioner was convicted and sentenced, he learned that trial
    counsel had obtained a timeline for the Taco Bell robbery. The timeline, which they received
    before the Petitioner’s trial, had been prepared by Mathews’s investigators and showed that
    Mathews committed the crimes alone. The Petitioner’s attorneys did not present the timeline
    at trial. The Petitioner said that when he learned about the timeline, he was angry. He said
    that he asked trial counsel why they had not introduced the timeline into evidence and that
    -13-
    they told him that “[t]hey didn’t think they could get it in.” The Petitioner said he did not
    know that Lax and Shettles had worked on Mathews’s case.
    On cross-examination, the Petitioner testified that he went to the party trailer
    frequently. At the time of the Grandpa’s and Taco Bell robberies, the Petitioner was not
    working, but the Army was paying him, and he did not need money. He acknowledged that
    he participated in the Grandpa’s robbery with Melanie Darwish and that he took the victim’s
    wallet. He said that he did not remember being advised of his Miranda rights at the CID
    office. However, the State showed him a waiver of rights form, and he acknowledged that
    he signed the form on March 10, 1994. The Petitioner learned about the Taco Bell crimes
    from watching television, reading the newspaper, and hearing gossip in jail. Brown helped
    him concoct the statement he gave to the police on March 21, 1994.
    The Petitioner acknowledged that he signed his proffer agreement with the State on
    October 19, 1995, and that the agreement said he was being charged with conspiracy to
    commit first degree murder. However, the Petitioner did not understand the charge. He said
    that he asked pretrial counsel about the charge, that pretrial counsel told him not to worry
    about it, and that he signed the proffer agreement because pretrial counsel told him to sign
    it. He acknowledged that Agent Puckett wrote his October 20 statement for him, that Agent
    Puckett read the statement to him, that he initialed every page of the statement, that he
    initialed changes to the statement, and that he signed it. Pretrial counsel was not present
    when Agent Puckett wrote the statement or the Petitioner signed it because pretrial counsel
    had left for the day. The Petitioner said that he did not realize falsely implicating someone
    in the Taco Bell crimes would breach the proffer agreement and that it should have been
    “painfully obvious” to authorities that his October 20 statement was not true. In addition to
    falsely accusing Sulyn Ulangca in the statement, the Petitioner also falsely accused Red
    Tween and Melanie Darwish. The Petitioner implicated Ulangca and Tween because he was
    always with them, and they would have known that he did not participate in the Taco Bell
    crimes.
    The Petitioner testified that after he refused to confront Ulangca, he decided to leave
    the building. Pretrial counsel had told him that he was not under arrest, and the Petitioner
    “went quick.” As he was going down some steps, officers going up the steps grabbed him.
    They handcuffed him, and pretrial counsel “walked out.” The Petitioner did not ask for new
    counsel after his arrest, but the trial court appointed lead counsel and co-counsel to represent
    him. The Petitioner acknowledged that they discussed the charges and the facts of the case
    with him. The Petitioner said that Mathews’s timeline proved his October 20 story was
    fiction because his name was not mentioned in the timeline. The Petitioner acknowledged
    that he never claimed in his October 20 statement that he went inside the Taco Bell, which
    could have explained why he was not mentioned in the timeline.
    -14-
    On redirect examination, the Petitioner testified that although he signed a waiver of
    rights form on March 10, 1994, he did not remember signing any other waiver of rights
    forms. When the Petitioner gave his statement on October 20, 1995, he did not feel free to
    leave. On recross examination, the Petitioner acknowledged that he gave his October 20
    statement while pretrial counsel was not present. He said he gave the statement without
    counsel because he did not know he could refuse to give the statement.
    John W. Carney, Jr., testified that he used to be the Deputy Director of the TBI. He
    was then in private practice briefly with several other attorneys, including pretrial counsel.
    In 1993, General Carney became the District Attorney General for the Nineteenth Judicial
    District, and in 1994, he assigned Assistant District Attorney General Steve Garrett to be the
    lead attorney prosecuting the Taco Bell murder case. The TBI assigned Agent Jeff Puckett
    to the case, and Agent Puckett kept General Carney informed about the investigation. In
    March 1994, General Carney learned that the Petitioner was a suspect in the Grandpa’s
    robbery and that he was in military custody for being AWOL. General Carney said that the
    Petitioner’s name “came up along with Courtney Mathews’ name and along with a string of
    names of people that came up in reference to a party trailer that was owned by Kevin
    Tween.” Agent Puckett interviewed the Petitioner on March 7 and 10, 1994. General
    Carney stated that in the Petitioner’s March 7 statement, the Petitioner was “talking about the
    Taco Bell crimes.” However, the Petitioner denied any involvement in the Taco Bell or
    Grandpa’s robberies.
    General Carney testified that the trial court appointed pretrial counsel to represent the
    Petitioner in the Grandpa’s case and that pretrial counsel contacted the district attorney’s
    office. General Carney said that according to pretrial counsel, the Petitioner “very likely”
    had information about the Taco Bell murders. While the Petitioner was being held in jail for
    the Grandpa’s robbery, General Carney and General Garrett talked with pretrial counsel
    about lowering the Petitioner’s bond in exchange for truthful information about the Taco Bell
    crimes. On March 21, 1994, the Petitioner gave a statement to Agent Puckett in which he
    claimed to have heard Mathews talking about planning to rob Mathews’s place of
    employment. About March 23, 1994, Michael Miller gave a statement to police implicating
    the Petitioner in the Taco Bell murders. The Petitioner was questioned about Miller’s
    statement and denied any involvement. Eventually, the Petitioner’s bond was reduced to
    $1,000, and he got out of jail and returned to his home in Kentucky.
    General Carney testified that while the Petitioner was on bond, the police tried to
    corroborate his statements. General Carney said that in October 1995, the Petitioner was
    recalled to Clarksville to explain “some inconsistencies.” General Carney said that although
    the Petitioner’s having to return to Clarksville was not a written condition of his bond,
    everyone “understood” that the Petitioner had to return as requested. General Carney and
    -15-
    members of his staff met with the Petitioner and pretrial counsel on October 11. During the
    interview, the Petitioner implicated himself in the planning of the Taco Bell crimes.
    Although someone tried to show photographs of the Taco Bell victims to the Petitioner, he
    did not want to look at them. General Carney never heard anyone use the word “fry” during
    the interview. He said the Petitioner probably was not given Miranda warnings prior to the
    interview because he was not in custody and his attorney was present.
    General Carney testified that he met with the Petitioner and pretrial counsel again on
    October 19. Agent Puckett also was present and took notes. During a break in the interview,
    Agent Puckett was left alone with the Petitioner in the interview room and spoke with the
    Petitioner privately. Agent Puckett later approached General Carney and told him that the
    Petitioner had stated, “I feel like I gassed [Mathews] up to kill these people.” The Petitioner
    also told Agent Puckett that he had offered to go with Mathews if Mathews “grew the balls
    enough to go down there and do this robbery.” Agent Carney explained, “[T]hat was a
    critical turning point because now [the Petitioner was] implicating himself deeper into . . .
    a conspiracy.” Post-conviction counsel asked General Carney, “[I]f someone merely
    encourages someone else to commit a crime, gases them up, is that a crime?” General
    Carney answered, “Maybe in or of itself, it might not be, but if you aid or contribute to that
    gassing up and take some overt act in its part, that would be.” General Carney stated that
    pretrial counsel was frustrated when he learned about the Petitioner’s comments to Agent
    Puckett but that pretrial counsel did not object to Agent Puckett’s questioning the Petitioner.
    General Carney said he did not think the Petitioner received Miranda warnings prior to the
    October 19 interview because the Petitioner was not in custody and his attorney was present.
    General Carney testified that after the Petitioner’s comments to Agent Puckett, he and
    members of his staff, including Steve Garrett, took a lunch break and began talking about
    how to draft “a proffer agreement, you know, use immunity agreement, contract, whatever
    you want to call it.” General Carney said that he was “somewhat familiar” with proffer
    agreements from having worked previously with the United States Attorney’s Office while
    he was employed by the TBI. He obtained a copy of a federal proffer agreement, and he and
    General Garrett used it as a model to draft their own agreement. He explained, “We would
    take out things that didn’t involve State government . . . but we used a large percentage of
    it after going over it numerous times.”
    General Carney testified that according to the agreement, the Petitioner’s aggravated
    robbery charge for the Grandpa’s crime would be reduced to robbery, and the Petitioner
    would receive a four-year sentence. The proffer agreement also provided that the Petitioner
    would be charged with conspiracy to commit first degree murder for the Taco Bell crimes
    and would receive a fifteen-year sentence to be served concurrently with the four-year
    sentence. According to the proffer agreement, the Petitioner would waive his right to have
    -16-
    a sentencing hearing within thirty days of entering his pleas. General Carney explained that
    the Petitioner “would enter pleas and have those charges . . . hanging over him until the end
    of all the cases and then at the end, he would then go to sentencing.” The agreement gave
    the State “unilateral” and “sole” discretion to determine the value of the Petitioner’s
    information. General Carney explained that the Petitioner was to give a “proffer statement”;
    that the proffer agreement gave his office the authority to evaluate the proffer statement and
    determine whether it was truthful, reliable, and credible; and that his office would “evaluate
    it and analyze it in good faith.” If the Petitioner breached the proffer agreement by giving
    untruthful information, then the State could pursue criminal charges against him and use his
    proffer statement against him. General Carney reviewed the proffer agreement with pretrial
    counsel, and pretrial counsel and the Petitioner signed it. General Carney did not talk with
    the Petitioner about the proffer agreement until the Petitioner breached it.
    General Carney testified that on October 20, 1995, the Petitioner gave his proffer
    statement. The statement was reduced to writing by Agent Puckett. In the statement, the
    Petitioner said he drove Mathews, Tween, and Sulyn Ulangca to Taco Bell on the night of
    the murders. General Carney said that the proffer statement could have been “extremely
    valuable” in the prosecution of Mathews and that it “had potential to open up the
    investigation further than just [the Petitioner] and Mathews.” Pretrial counsel was present
    when the Petitioner started giving the proffer statement, but General Carney did not know
    if pretrial counsel remained for the entire statement. The Petitioner did not receive Miranda
    warnings prior to giving the proffer statement because he was not in custody and pretrial
    counsel was present.
    General Carney testified that after the Petitioner gave his proffer statement, agents
    interviewed Sulyn Ulangca in North Carolina and gave her a polygraph. She denied being
    involved in the Taco Bell robbery and volunteered to return to Tennessee to confront the
    Petitioner. General Carney spoke with Ulangca and believed she was telling the truth about
    not being involved in the crimes. General Carney called the Petitioner back to Clarksville
    to “discuss some inconsistencies in his statement,” ask him why he had implicated Ulangca,
    and have Ulangca confront him. The Petitioner voluntarily returned to Clarksville, and
    General Carney and General Garrett met with him and pretrial counsel. When the Petitioner
    refused to speak with Ulangca, pretrial counsel asked to talk with the Petitioner privately.
    The Petitioner told pretrial counsel that everything in his proffer statement had been true
    except for Ulangca’s involvement in the crimes. When pretrial counsel told General Carney
    what the Petitioner had revealed, General Carney informed pretrial counsel that the Petitioner
    had breached the agreement by implicating an innocent person in the murders. General
    Carney said that the Petitioner also breached the agreement by lying in the proffer statement
    about where he got the nine millimeter handgun. However, “the most egregious” breach was
    implicating Ulangca, and pretrial counsel did not protest General Carney’s declaration of the
    -17-
    breach. After General Carney announced the breach, he went to check on Ulangca and heard
    a commotion. General Carney said that the Petitioner had “bolted,” that police officers
    apprehended him before he could run out the front door, and that he was arrested. After the
    arrest, General Carney disqualified himself and his staff from prosecuting the Petitioner
    because General Carney thought he had become a witness in the case.
    On cross-examination, General Carney testified that prior to this case, he had never
    worked on a case in which four people were killed at one time. He described the case as
    “significant.” He acknowledged that Agent Puckett had a reputation for being honest and
    following procedures and said that if a person was not in custody, Miranda warnings were
    not required “unless the person started implicating himself in a crime.” The Petitioner
    received Miranda warnings prior to his first interview in March 1994. He was advised of his
    rights again and executed a written waiver for the March 1994 polygraph. During the
    Petitioner’s interviews with authorities, regular breaks were taken. General Carney said that
    he did not know if the Petitioner smoked but that nothing should have given the Petitioner
    the impression that the Petitioner was not free to leave. The Petitioner could have stopped
    answering questions at any time. The proffer agreement provided that the Petitioner would
    be charged with conspiracy to commit first degree murder as opposed to first degree murder.
    He also acknowledged that the proffer agreement was part of plea negotiations, stating, “Yes.
    It was taken in that context, yes.” After signing the proffer agreement, the Petitioner
    remained out of jail on bond. General Carney said that the Petitioner was arrested on
    November 7, 1995, because “he was fleeing the office” and that the Petitioner’s bond was
    revoked that same day. On redirect examination, General Carney testified that the Petitioner
    was taken into custody “after he bolted.”
    Steve Garrett testified that he was an assistant district attorney in Clarksville at the
    time of the post-conviction evidentiary hearing and at the time of the Taco Bell crimes. In
    1994, his supervisor was District Attorney General John Carney. On the night of January 30,
    1994, General Garrett learned about the Taco Bell murders and went to the scene. Courtney
    Mathews was arrested shortly after the crimes, and General Garrett became the lead
    prosecutor in the case. General Garrett said that in March 1994, the State’s theory of the case
    was that Mathews was the “sole shooter.” He said, though, that rumors about the Petitioner
    were “bubbling” and that the Petitioner had been associated with the “party trailer.” About
    two weeks after the Taco Bell robbery, General Garrett learned about the Grandpa’s robbery.
    He also learned that the Petitioner had been arrested for the Grandpa’s robbery, that Agents
    Jeff Puckett and George Elliot had questioned the Petitioner, and that the Petitioner had taken
    a polygraph. The Petitioner was charged with aggravated robbery for his participation in the
    Grandpa’s robbery, and pretrial counsel became his attorney.
    General Garrett testified that in March or April 1994, he met with the Petitioner and
    -18-
    pretrial counsel. General Garrett said he was interested in the Petitioner because the
    Petitioner was “a possible witness to premeditation conversations” with Mathews. General
    Garrett and pretrial counsel discussed reducing the Petitioner’s bond for the Grandpa’s
    robbery in exchange for a statement from the Petitioner about the Taco Bell crimes, and the
    Petitioner gave his first statement on March 21, 1994. General Garrett said that in the
    statement, the Petitioner did not say he had participated in the Taco Bell crimes but may have
    “implicated himself in the planning of it.” In March or April 1994, General Garrett spoke
    with Michael Miller, who claimed that the Petitioner had participated in the Taco Bell
    crimes. The Petitioner was confronted with Miller’s statement, but the Petitioner denied even
    knowing Miller. In September 1994, the Petitioner was released from jail on bond and went
    to Kentucky. Meanwhile, General Garrett prepared for Mathews’s trial. Ron Lax, a private
    investigator, was working for Mathews.
    General Garrett testified that in October 1995, he asked the Petitioner to return to
    Clarksville so he could talk with the Petitioner about what the Petitioner knew about the Taco
    Bell robbery and “try to tie up some of these loose ends.” General Garrett did not remember
    the Petitioner’s having to return to Clarksville as a condition of his bond. About 3:30 p.m.
    on October 11, 1995, General Garrett met with the Petitioner and pretrial counsel at the
    district attorney’s office. District Attorney General Carney, other prosecutors, and police
    officers also were present. General Garrett thought the Petitioner was advised of his Miranda
    rights, but he did not remember the Petitioner’s signing a waiver of rights form. He said that
    he did not remember anyone accusing the Petitioner of being involved in the Taco Bell
    crimes but that he remembered “some intense, profane questioning about . . . various
    contradictions or inconsistencies that we had on previous statements.” Pretrial counsel did
    not object during any of the questioning, and the Petitioner took several breaks so he could
    talk with pretrial counsel. General Garrett said that at some point during the interview, the
    Petitioner said, “I told [Mathews] that he was a little bitch if he didn’t go down there, and if
    he grew the balls to go I would go.” General Garrett described the Petitioner’s comment as
    “riveting” and the “most graphic statement of . . . anything that he had said.” The Petitioner
    also may have said during the October 11 interview that he “gassed [Mathews] up.”
    However, the Petitioner maintained that he had not been at the Taco Bell at the time of the
    crimes. General Garrett acknowledged that during the interview, the Petitioner was shown
    crime scene photographs and that the Petitioner did not want to look at them. The interview
    ended about 7:00 p.m. when the Petitioner decided that he wanted to go home to Kentucky
    and talk with his mother.
    General Garrett testified that based on what the Petitioner had said during the October
    11 interview, he began thinking about drafting a “proffer agreement” that would charge the
    Petitioner with conspiracy to commit first degree murder. On the morning of October 19,
    1995, the Petitioner returned to the district attorney’s office and gave another oral statement.
    -19-
    In the statement, the Petitioner claimed that he was at the Taco Bell during the crimes and
    that he served as Mathews’s lookout. General Garrett, who had been working on the proffer
    agreement for one or two days, gave it to pretrial counsel to discuss with the Petitioner.
    Pursuant to the agreement, the Petitioner had to tell the State what he knew about the Taco
    Bell robbery and describe his involvement. In return for his information, the Petitioner
    would plead guilty to conspiracy to commit first degree murder. He also would plead guilty
    to robbery, instead of aggravated robbery, for the Grandpa’s crime. Pursuant to the
    agreement, the Petitioner would be sentenced as a Range I, standard offender to concurrent
    sentences of fifteen years for the conspiracy conviction and four years for the robbery
    conviction. The trial court never accepted the agreement pursuant to Rule 11, Tennessee
    Rules of Criminal Procedure.
    General Garrett testified that the next day, October 20, the Petitioner and pretrial
    counsel returned to the district attorney’s office for another interview. General Garrett,
    Agent Puckett, and General Carney were present, and Agent Puckett wrote a report of the
    interview. According to the report, the Petitioner did not say during the interview that he was
    with Mathews at the Taco Bell. However, the report showed that Agent Puckett had an ex
    parte communication with the Petitioner in which the Petitioner claimed he gave Mathews
    the idea to kill the Taco Bell employees. The Petitioner wanted to take a polygraph, and a
    polygraph examination was administered to him after his interview. General Garrett said that
    after the Petitioner took the polygraph, he gave a “proffer agreement statement.” The proffer
    statement, written by Agent Puckett, did not indicate that pretrial counsel was present when
    the Petitioner gave it. General Garrett said the Petitioner’s written proffer statement was
    “compelling evidence” and described “multiple participants.” Specifically, the Petitioner
    said in the proffer statement that he, Sulyn Ulangca, Red Tween, and Melanie Darwish
    participated in the Taco Bell crimes with Mathews. The Petitioner signed the proffer
    statement.
    General Garrett testified that after the Petitioner gave the proffer statement, detectives
    began trying to corroborate it. He said Tween and Darwish were interviewed but
    “consistently maintained that they were not involved, and did not give any incriminating
    statements to us.” On November 7, 1995, the Petitioner returned to Clarksville and was told
    he had to confront Sulyn Ulangca. The Petitioner refused. General Garrett said that the
    Petitioner met with pretrial counsel and that pretrial counsel “came back and he . . . offered
    up something . . . what was opposite of what Housler had said either on the 11th, the 19th or
    the 20th.” At that point, General Carney informed pretrial counsel that the Petitioner had
    breached the proffer agreement, and pretrial counsel never objected or challenged the State’s
    declaration of a breach. General Garrett said that, later, he heard “somebody running
    upstairs, [and] next thing I knew they had [the Petitioner], I think, in handcuffs.”
    -20-
    On cross-examination, General Garrett testified that although the State thought
    Mathews was the shooter, there was evidence of other participants. In March or April 1994,
    the Petitioner claimed that Sulyn Ulangca could provide an alibi for him. However, police
    officers talked with her, and she could not provide an alibi for the Petitioner. General Garrett
    said that when the Petitioner learned Ulangca could not provide an alibi for him, the
    Petitioner made Ulangca “at least a witness” to the crimes. General Garret said that pursuant
    to the proffer agreement, the proffer statement could not be used against the Petitioner if he
    testified truthfully. However, if the Petitioner failed to testify truthfully, the State could use
    the statement. If the Petitioner breached the proffer agreement, the State could prosecute him
    for the Taco Bell crimes and use the statement. Between October 20 and November 7, 1995,
    TBI agents tried to corroborate the Petitioner’s proffer statement. The Petitioner had claimed
    in his statement that he and Tween went into a convenience store while en route to the Taco
    Bell. However, the convenience store clerk, who knew the Petitioner and Tween, adamantly
    denied that they came into the store on the night of the crimes. Tween and Darwish were
    interviewed and took polygraphs. Agents also traveled to North Carolina and interviewed
    Ulangca. Ulangca took a polygraph and passed it.
    General Garrett testified that on November 7, 1995, he told the Petitioner and pretrial
    counsel that Ulungca was in the building and that the Petitioner had to confront her. Pretrial
    counsel spoke with the Petitioner privately and told General Garrett and General Carney that
    the Petitioner “now wants to say . . . that he and Ulangca were not down there.” General
    Garrett said that once again, the Petitioner had been “caught in a lie” and that General Carney
    told the Petitioner that the Petitioner had breached the proffer agreement.
    Agent Jeff Puckett, the Deputy Director of the TBI, testified that in January 1994, he
    was a TBI special agent and one of the lead investigators in the Taco Bell crimes. He said
    that in February 1994, the Petitioner was “just one of the many names that were mentioned
    in regards to a party at a trailer in Oak Grove, Kentucky where Courtney Mathews had
    attended.” Mathews was a suspect in the crimes and already had been arrested. Police
    officers interviewed people who had attended the party, including the Petitioner, Red Tween,
    Sulyn Ulangca, and Melanie Darwish. From the interviews, officers learned that some of the
    party attendees had overheard a conversation in which Mathews talked about robbing the
    Taco Bell. Agent Puckett acknowledged that he heard “a mixture of stories.”
    Agent Puckett testified that his first interview with the Petitioner occurred on March
    7, 1994, at the CID office at Fort Campbell. He gave the Petitioner Miranda warnings, and
    they talked mainly about the Grandpa’s robbery. However, Agent Puckett’s primary
    objective in speaking with the Petitioner was to get information about the Taco Bell robbery.
    The Petitioner thought that on the night of January 21, 1994, the date of the trailer party, he
    was at home in Clarksville with Ulangca. He said that if he was at the party, he did not
    -21-
    remember meeting Mathews. The Petitioner claimed that on the night of the Taco Bell
    crimes, he was at Tween’s trailer with friends. Although the Petitioner did not implicate
    himself in the Taco Bell crimes, Agent Puckett thought the Petitioner could have been
    involved in the planning of the robbery. Two or three days after the interview, the Petitioner
    waived his rights and took a polygraph in which he was questioned about both robberies.
    The Petitioner denied involvement, and the polygraph showed that the Petitioner was being
    deceptive. At some point, the Petitioner confessed to robbing Grandpa’s and was taken to
    the Montgomery County Jail.
    Agent Puckett testified that he interviewed the Petitioner again on March 21, 1994,
    and questioned him about his “involvement in the planning or the knowledge that a robbery
    was going to happen at Taco Bell.” Pretrial counsel was present during the interview. The
    Petitioner told Agent Puckett that he saw Mathews at the party trailer on January 21, 1994,
    but that he did not see Mathews again until they were both in jail after the Taco Bell crimes.
    Agent Puckett also interviewed Michael Miller. Miller claimed that he was the Petitioner’s
    childhood friend and that the Petitioner had admitted some involvement in the Taco Bell
    robbery. In July 1995, Agent Puckett interviewed Sulyn Ulangca. Ulangca did not
    remember if she was with the Petitioner on the night of the Taco Bell crimes.
    Agent Puckett testified that he met with the Petitioner several times in October 1995.
    Agent Puckett did not remember the Petitioner’s saying during one of the interviews that the
    Petitioner wanted the interview to end so he could go home. Agent Puckett did not show
    photographs of the victims to the Petitioner, but someone else may have done so. During one
    of the October interviews, the Petitioner said he “‘gassed up’” Mathews, meaning he
    encouraged Mathews to commit the crimes. Agent Puckett stated, “[T]hat’s what triggered
    the proffer agreement.” On the morning of October 20, 1995, Agent Puckett interviewed the
    Petitioner and took notes. General Garrett, General Carney, and pretrial counsel also were
    present. Agent Puckett acknowledged that the Petitioner made some untrue statements
    during the interview. For example, the Petitioner claimed that he had been released from jail
    on March 10, 1994, when the Petitioner had not been released from jail until September
    1994. At some point during the interview, everyone took a break, and Agent Puckett was left
    alone with the Petitioner. Agent Puckett told the Petitioner that he wanted the truth, and the
    Petitioner responded that “‘he [was] the one that put the idea in [Mathews’s] mind to leave
    no witnesses or kill the witnesses.’” Agent Puckett said that the Petitioner “had been
    mirandized a couple of times prior to that and had [an] attorney” but that he did not give
    Miranda warnings to the Petitioner prior to his speaking with the Petitioner alone. Agent
    Puckett told General Carney about the Petitioner’s admission.
    Agent Puckett testified that the Petitioner took a polygraph on October 20 and signed
    a statement saying that he was taking the polygraph voluntarily. The polygraph questions
    -22-
    asked if the Petitioner was inside the Taco Bell at the time of the homicides and if he fired
    a gun inside the restaurant. The Petitioner answered no. The results of the polygraph were
    inconclusive, meaning the Petitioner did not pass or fail. Sometime after the polygraph, the
    Petitioner gave a written statement. Agent Puckett wrote out the statement for the Petitioner
    and did not give him Miranda warnings prior to taking the statement. Pretrial counsel was
    not present when Agent Puckett wrote out the Petitioner’s statement. However, Agent
    Puckett said he thought pretrial counsel was present when the statement was read back to the
    Petitioner and the Petitioner signed the statement. Agent Puckett said that from March 1994
    to October 1995, the Petitioner’s information about the Taco Bell crimes “evolved.” After
    the Petitioner gave his written statement on October 20, Sulyn Ulangca took a polygraph and
    passed. Agent Puckett did not think she was involved in the crimes. Agent Puckett said that
    on November 7, 1995, Ulangca was brought to Tennessee to confront the Petitioner and that
    General Carney and his staff confronted the Petitioner about some “discrepancies.”
    On cross-examination, Agent Puckett testified that after he wrote out the Petitioner’s
    October 20 statement, the Petitioner read it and initialed every page. Agent Puckett made
    corrections to the statement, and the Petitioner initialed the corrections. The Petitioner
    seemed to understand what he was saying and never seemed confused.
    Pretrial counsel, who became a judge in 2004, testified that in 1993, he practiced law
    in the same office as John Carney. He said they were not partners but had “an association
    held out as a partnership” for about six months. By the time of the Taco Bell robbery,
    Carney had become the District Attorney General for the Nineteenth Judicial District. In
    March 1994, pretrial counsel was appointed to represent the Petitioner. Prior to the
    appointment, his practice of criminal law had not been very extensive. He may have handled
    one or two felony trials but had not participated in any murder trials. After the Petitioner was
    arrested for the Grandpa’s robbery, pretrial counsel met with him in the Montgomery County
    Jail. The Petitioner had been charged with aggravated robbery in that case, and pretrial
    counsel asked him about the Taco Bell crimes. The Petitioner asked why everyone wanted
    to talk about Taco Bell and claimed he did not know anything about the Taco Bell robbery.
    Pretrial counsel described the Petitioner as “very animated” and “stressed out.” At some
    point, the Petitioner telephoned pretrial counsel and asked to talk with him. On March 21,
    1994, the Petitioner gave a statement to authorities in which he said he was at a party trailer
    in Oak Grove, Kentucky, and overheard Courtney Mathews say that Mathews was going to
    rob the place where Mathews worked and leave no witnesses. Pretrial counsel was present
    when the Petitioner gave the March 21 statement.
    Pretrial counsel testified that in September 1994, the Petitioner’s bond was reduced,
    and he was released from jail. In October 1995, General Steve Garrett asked pretrial counsel
    to have the Petitioner return to Clarksville. Pretrial counsel spoke with the Petitioner but did
    -23-
    not remember telling the Petitioner or his mother that the Petitioner’s bond would be revoked
    if he did not return to Clarksville. Pretrial counsel also did not remember if he
    communicated with the Petitioner from September 1994 to October 1995 or if he worked on
    the Petitioner’s case during that time. When the Petitioner returned to Clarksville in October
    1995, pretrial counsel told him not to volunteer any information and that the Petitioner should
    talk with him first about any new information. He and the Petitioner met with police officers
    and prosecutors at the district attorney’s office. After the interview, the Petitioner returned
    to Kentucky.
    Pretrial counsel testified that the Petitioner returned to Clarksville on October 19,
    1995, and met again with prosecutors and police at the district attorney’s office. Pretrial
    counsel said that he did not recall Agent Puckett’s being alone with the Petitioner and that
    he “would have been pretty darn upset about it.” During the Petitioner’s October 19
    interview, his story changed. Pretrial counsel said the Petitioner “volunteered facts that made
    him a participant in the planning of the Taco Bell robbery.” Pretrial counsel became upset
    with the Petitioner because the Petitioner’s information was enough to convict him of
    conspiracy to commit first degree murder. Pretrial counsel stopped the interview, “ran
    everybody out of the room,” and told the Petitioner that he had just implicated himself. After
    the Petitioner made the incriminating statement, pretrial counsel began “proffer negotiations”
    with General Garrett.
    Pretrial counsel testified that according to notes he took about the proffer agreement,
    the Petitioner had to give “truthful and complete statements” and could not be the shooter in
    the Taco Bell murders. He said that if the Petitioner turned out to be the shooter, the State
    would not be “willing to deal with him.” The State drafted the proffer agreement, and
    pretrial counsel went over every sentence with the Petitioner. The Petitioner’s telling the
    truth was a term of the agreement. Pretrial counsel acknowledged that according to the
    agreement, any information given by the Petitioner would not be used against him in any
    criminal proceeding, except in a prosecution for perjury or giving a false statement, as long
    as he did not violate the agreement’s terms. Post-conviction counsel asked pretrial counsel,
    “[H]ow does [that] make any sense?” Pretrial counsel answered, “Don’t know.” Pretrial
    counsel said he told the Petitioner that “if you are lying about this, they can use this against
    you.” Pretrial counsel said he was concerned about General Carney’s unilateral ability to
    determine a breach of the agreement and that he discussed his concern with the Petitioner.
    He said he told the Petitioner that the Petitioner “would have to tell the truth, and if [the
    Petitioner] did, we would be fine.” He said that if the Petitioner materially breached the
    agreement, then “there would be litigation to follow and ultimately a Court.” He said that
    he recommended that the Petitioner sign the proffer agreement and that he had no doubt the
    Petitioner understood the agreement.
    -24-
    Pretrial counsel testified that on October 20, 1995, Agent Puckett wrote out the
    Petitioner’s statement from the previous day. Pretrial counsel said he did not stay for the
    entire statement because “it was to be consistent with the very long and extremely detailed
    statement [the Petitioner] had given the night before, pursuant to the proffer.” He said that
    he was unaware of the Petitioner’s taking a polygraph on October 20 and that he did not
    approve the Petitioner’s taking the polygraph. On November 7, 1995, the Petitioner returned
    to the district attorney’s office. General Carney wanted him to confront Sulyn Ulangca, but
    he refused. The Petitioner asked to speak with Ulangca privately, but he was not allowed to
    do so. Pretrial counsel said he told General Carney that the Petitioner would not confront
    Ulangca and that the Petitioner’s story “may be different in regard to whether Sulyn and/or
    [the Petitioner] were present on the [Taco Bell] property during [the crimes].” Pretrial
    counsel said that prosecutors “had an expression of disbelief as well as frustration,” that they
    believed Ulangca’s claim of innocence, and that they announced the Petitioner had breached
    the proffer agreement. Pretrial counsel said that after prosecutors announced the breach, a
    scuffle occurred, the Petitioner was apprehended, and the Petitioner was “whisked away.”
    Pretrial counsel did not know if he talked with the Petitioner after November 7, 1995, and
    he withdrew from the Petitioner’s case on January 19, 1996. The next time he saw the
    Petitioner was at the Petitioner’s suppression hearing in April 1997.
    On cross-examination, pretrial counsel testified that he did not make any promises to
    the Petitioner and that he did not remember the Petitioner’s being dissatisfied with his
    representation. He said he allowed the Petitioner to speak with prosecutors because the
    Petitioner had convinced him that nothing would implicate the Petitioner in the Taco Bell
    crimes. He said that he hoped to get “time served” for the Petitioner in the Grandpa’s robbery
    and that he did not learn about the Petitioner’s participation in the Taco Bell robbery until
    the October 19, 1995 interview. He said that if the Petitioner had revealed that information
    prior to the interview, he would not have allowed the Petitioner to speak with authorities. The
    Petitioner knew he did not have to speak with them. Regarding Miranda warnings, pretrial
    counsel stated that he was “certain that there was a waiver in connection[] with some of this.”
    According to the proffer agreement, the Petitioner could not falsely implicate anyone in the
    Taco Bell crimes. The State asked pretrial counsel if he thought he represented the Petitioner
    in a competent manner, and he answered, “To the extent that I could with him changing like
    a chameleon, yes.”
    Co-counsel at trial testified that she graduated from law school in 1994, passed the bar
    exam in April 1995, and was appointed to represent the Petitioner in December 1995. She
    was “second chair” to lead counsel. Attorney Larry Wallace3 was appointed to assist co-
    counsel and lead counsel. Wallace’s job was to ensure that the defense received all discovery
    3
    The Petitioner does not allege that Wallace was ineffective.
    -25-
    from the State, particularly General Garrett and Helen Young in the district attorney’s office.
    Co-counsel identified a document labeled “‘Agent’s Note’” in which someone wrote that the
    Petitioner was not suspected to have participated in the Taco Bell crimes. Co-counsel said
    she learned about the document within the past year, and she acknowledged that she would
    have used the document at the Petitioner’s trial. She also identified a letter written by Larry
    Underhill, who testified against the Petitioner at the Petitioner’s trial. Underhill sent the
    letter to General Gus Radford, the prosecutor in the Petitioner’s case, on October 15, 1997,
    and asked that certain promises be fulfilled in exchange for his testimony. Co-counsel said
    she did not know about the letter before the Petitioner’s trial and could have used it to
    impeach Underhill.
    Co-counsel testified that shortly after she and lead counsel were appointed to the
    Petitioner’s case, they met with Courtney Mathews’s lawyers, Jim Simmons and Skip Gant.
    She said Simmons and Gant “had requested that we meet with them and the purpose of it was
    to inform us that we were representing an innocent man.” Simmons and Gant gave co-
    counsel and lead counsel access to evidence in Mathews’s case, and co-counsel looked
    through file boxes and copied documents. Simmons and Gant also provided lead counsel and
    co-counsel with a timeline to help them with their investigation. Co-counsel said the timeline
    had been prepared by “Ron Lax and his team,” the investigators from Inquisitor, Inc., who
    had worked on Mathews’s case. She said the timeline started days before the robbery and
    showed “what [Mathews] was doing days before the murders were committed, what he was
    doing while the murders were committed, and what happened after the murders were
    committed.” However, parts of the timeline had been redacted. Later, Simmons gave co-
    counsel unrestricted access to a file room, and co-counsel found an unredacted copy of the
    timeline. She said the unredacted timeline “explained what Courtney [Mathews] did, exactly
    who he killed, how he killed them, what he was doing before he killed them, what he did
    after he killed the people at Taco Bell.” She stated that the unredacted timeline was “vital”
    to the Petitioner’s defense, that it showed he was innocent, and that she made a copy of it.
    Co-counsel showed the unredacted timeline to lead counsel, but they did not show it to the
    Petitioner or Wallace. She said that Simmons had given her permission to copy anything in
    the file room but that she and lead counsel did not use the unredacted timeline at the
    Petitioner’s trial because they thought it was “privileged.”
    Co-counsel testified that at some point, Glori Shettles, an investigator from Inquisitor,
    Inc., began helping the defense with the Petitioner’s case because co-counsel and lead
    counsel were having difficulty locating and interviewing witnesses. Shettles also was
    appointed to help with mitigation evidence for the Petitioner. Although Shettles had worked
    on Mathews’s case, co-counsel never considered Shettles’s work for the Petitioner to be a
    conflict of interest. In a letter Shettles faxed to lead counsel and co-counsel on August 13,
    1997, Shettles said Mathews and the Petitioner had denied ever meeting each other. Co-
    -26-
    counsel prepared an affidavit for Mathews to sign, stating that the Petitioner was not
    involved in the Taco Bell crimes. Jim Simmons presented the affidavit to Mathews, but
    Mathews refused to sign it.
    On cross-examination, co-counsel testified that pretrial counsel testified at the
    Petitioner’s motion to suppress hearing. The Petitioner waived his attorney/client privilege
    at the hearing in order to introduce pretrial counsel’s time sheets into evidence and show that
    pretrial counsel did not spend much time with him. Co-counsel said that she met with the
    Petitioner less than ten times before trial and that she and lead counsel consulted with him
    “[a] little.” The Petitioner testified on his own behalf at trial, but co-counsel did not force
    him to testify. The defense’s theory was that the Petitioner was innocent and gave a false
    confession. Co-counsel consulted the unredacted timeline before the Petitioner’s trial to help
    her organize the Petitioner’s case. She described the unredacted timeline as “explosive” and
    said it contained entries for interviews in which Mathews told his investigators how the Taco
    Bell murders were committed. She said that she hid the timeline from the Petitioner, that “I
    should have used everything in that [timeline] at trial,” and that she did not know why she
    and lead counsel did not use the timeline. When asked if her representation of the Petitioner
    was deficient, co-counsel said, “Absolutely.” She also said she was “[c]ompletely
    incompetent.” Co-counsel said that, in her view, Simmons and Gant waived their
    attorney/client privilege with Mathews and that they did so because they knew the Petitioner
    was innocent. She said that she and lead counsel should have had Simmons, Gant, Lax, and
    Shettles testify at trial and that she thought the jury convicted the Petitioner because the jury
    did not believe the State would put an innocent man through a trial. Co-counsel did not
    remember the Petitioner’s expressing any dissatisfaction with her representation.
    Ronald L. Lax, the owner of Inquisitor, Inc., testified that he had been a private
    investigator since 1971. In 1996 and 1997, approximately thirteen employees, including
    Glori Shettles, worked for Lax’s company. Lax said that clients hired Inquisitor, Inc., for its
    civil and criminal investigative services and that the company was appointed to assist
    Courtney Mathews’s defense team. On April 28, 1994, Lax interviewed Mathews. During
    the interview, Mathews described how he committed the Taco Bell crimes alone. Lax
    interviewed Mathews more than once, and Mathews never mentioned the Petitioner’s being
    a participant in crimes. Lax said that after the Petitioner provided information about the Taco
    Bell robbery to authorities, Mathews was “very adamant” that the Petitioner was not
    involved. Mathews told Lax that he did not even know the Petitioner but that “there was a
    possibility he may have met [the Petitioner] at one time.” Other than the Petitioner’s
    confession, nothing in Lax’s investigation indicated that the Petitioner had been involved in
    the Taco Bell crimes, and Lax thought Mathews committed the crimes alone. Post-
    conviction counsel for the Petitioner showed Lax a timeline, and he identified it as the
    timeline his company prepared for Mathews’s case. The timeline excluded the Petitioner as
    -27-
    a participant in the murders.
    Lax testified that after Mathews’s trial, trial counsel for the Petitioner contacted Glori
    Shettles and asked if Inquisitor, Inc., would conduct a mitigation investigation for the
    Petitioner, who was facing the death penalty. At first, Lax determined that his company
    could not conduct the investigation because it had worked on Mathews’s case. However, Jim
    Simmons and Skip Gant told Lax that a conflict would not exist if Inquisitor, Inc., did not
    disclose anything Mathews said. Lax met with Simmons, Gant, lead counsel, and co-counsel.
    He said that during the meeting, “parameters were set out,” and Gant told lead counsel and
    co-counsel that the Petitioner was innocent. Lax said Simmons and Gant instructed him to
    provide lead counsel and co-counsel with “copies of all facets of our investigation with the
    exception of any memorandum documenting conversations or interviews we had with
    Courtney Mathews.” Simmons and Gant also instructed him to prepare a redacted timeline
    for the Petitioner’s attorneys. Lax prepared the timeline, which removed all references to
    conversations or interviews with Mathews.
    Lax testified that at some point, the State decided not to seek the death penalty against
    the Petitioner. He said that although Inquisitor, Inc., had not been appointed to do any
    guilt/innocence work for the Petitioner’s case, Shettles “did do some interviews toward the
    end just before trial to help [Larry] Wallace.” He stated, “In hindsight, when death was
    removed, Ms. Shettles should have stopped at that point, and not provided any other
    assistance.” Lax acknowledged that Mathews and the Petitioner were his clients and that he
    owed a duty of loyalty to both of them. He stated that investigators were obligated “[t]o
    investigate everything they possibly can and to keep their [clients’] confidence.” However,
    he acknowledged that investigators also had a duty to share information with their clients.
    Post-conviction counsel for the Petitioner showed Lax a copy of the Rules of Professional
    Conduct and Standards of Practice for private investigators that were in effect in 1996 and
    1997. According to Rule 1175-4-.05, licensed investigators were to “avoid all conflicts of
    interest with his her employer or client.” Counsel asked Lax if he thought a conflict of
    interest existed in this case, and he said,
    In this situation no, I did not think so. We were asked to
    provide mitigation investigation. [Lead counsel and co-counsel
    for the Petitioner] knew we had worked extensively for
    Courtney Mathews. Mr. Gant and Mr. Simmons sat in the office
    with [co-counsel and lead counsel] and told them that their
    client was innocent. It was agreed that we would work with
    them under the understanding that nothing Mr. Mathews had to
    say to us was divulged.
    -28-
    Then an affidavit was prepared, and an order was given --
    or a motion was made in the court, and the Court approved us to
    provide investigative services. I felt that with notification to
    everyone, and acceptance, and everyone was in agreement.
    When asked if he thought the Petitioner was innocent of the Taco Bell crimes, Lax said yes.
    On cross-examination, Lax testified that after the State decided to drop the death
    notice in the Petitioner’s case, Shettles continued to help the Petitioner’s defense by
    interviewing some witnesses. Lax did not learn that lead counsel and co-counsel had
    obtained the undredacted timeline until after the Petitioner appealed his convictions.
    Isaiah “Skip” Gant testified that he represented Courtney Mathews at trial. During
    Gant’s investigation of Mathews’s case, he never developed credible evidence that the
    Petitioner was involved. Regarding the Petitioner’s proffer statement, Gant said that
    “nobody could believe that his proffer was true.” However, Gant did not remember raising
    any concerns about the proffer statement with the district attorney’s office. Gant identified
    an undredacted timeline that contained summaries of interviews with witnesses, including
    Mathews. He acknowledged that Mathews’s account of the Taco Bell crimes did not
    implicate the Petitioner.
    On cross-examination, Gant testified that in addition to the Petitioner, other witnesses
    falsely claimed to have participated in the murders. Based upon the evidence, Gant knew
    that the Petitioner was not involved. Gant acknowledged that he investigated Mathews’s
    case but not the Petitioner’s case. At Mathews’s trial, the State’s theory was that Mathews
    acted alone. However, Gant said that “[t]here was some talk about some gang being
    involved.” He acknowledged that he presented evidence at Mathews’s trial to show that
    other individuals, including a white individual, were present during the crimes. He also
    acknowledged that he tried to show that the State failed to prove its case because someone
    other than Mathews could have committed the crimes. Gant said he told lead counsel and
    co-counsel that they could have access “to what we have.” However, he did not give them
    access to Mathews’s statements, and they could have only nonprivileged, nonconfidential
    information. Any information Gant obtained from Mathews was confidential. Gant used the
    unredacted timeline to prepare for Mathews’s trial, and he acknowledged that he instructed
    Ron Lax to prepare a redacted timeline for lead counsel and co-counsel. Gant told co-
    counsel and lead counsel that the Petitioner was innocent. He said he knew the Petitioner
    was innocent because the Petitioner’s statement “couldn’t be the way he said it was.” Gant
    acknowledged that some of the information Mathews gave him was untrue. However, on
    redirect examination, Gant testified that he had no reason to think Mathews withheld
    information from him.
    -29-
    Glori Shettles testified that she had been a mitigation investigator for Inquisitor, Inc.,
    since 1993. In December 1996, she was appointed to work on the Petitioner’s case. Shettles
    met with him in jail and interviewed his family, friends, and former employers. She gathered
    information that would have been favorable to the Petitioner at sentencing, but the
    Petitioner’s attorneys never contacted her about the information. Shettles also worked as a
    mitigation investigator for Courtney Mathews. She met with Mathews, and he described how
    the Taco Bell murders were committed. Based on what Shettles knew about the investigation
    of Mathews’s case, she thought he committed the crimes alone. In September 1997, the State
    stopped seeking the death penalty against the Petitioner. At his attorneys’ request, Shettles
    continued to work on his case. She said that Larry Wallace was working as the Petitioner’s
    “guilt innocence investigator” and that Inquisitor employees helped Wallace locate witnesses.
    Shettles acknowledged that Inquisitor employees worked with Wallace as “one big guilt
    innocence investigative team.”
    Shettles testified that “part of the agreement” for her to work on the Petitioner’s case
    was that she could not tell the Petitioner about her conversations with Mathews. She
    acknowledged that Mathews gave her information exculpatory to the Petitioner’s case. She
    said, “[B]ut I thought that it was known.” Shettles had never worked on another case in
    which she had to keep helpful information from a client. She said she knew the Petitioner
    was not guilty because nothing in the investigation showed he was involved in the Taco Bell
    robbery.
    Danese Banks testified that she had been an attorney since 1996 and worked for
    Inquisitor, Inc., from 1996 to 2000. Banks worked on the guilt/innocence portion of
    Courtney Mathews’s investigation. She talked with Mathews and learned details about the
    Taco Bell crimes. Banks helped create a timeline in his case, and she concluded that he acted
    alone. Banks said she did not remember working on the Petitioner’s case. However, she
    identified documents showing that she located witnesses for the Petitioner.
    Helen Young testified that she began working as an attorney for the district attorney’s
    office in Clarksville two weeks before the Taco Bell crimes and was involved in the
    prosecution of Courtney Mathews. The district attorney’s office had an “open file” policy
    with Mathews’s attorneys. Near the time of Mathews’s trial in June 1996, the district
    attorney’s office disqualified itself from the Petitioner’s case. On February 7, 1997, the trial
    court signed an order for the disqualification. Based on the evidence, Young thought the
    Petitioner was guilty. She said that “all of them had been at this trailer, there had been
    discussion primarily by [Mathews] that he was going to do this.” She said that she thought
    the Petitioner “went in with [Mathews] for whatever reason” but that “it was [Mathews]
    doing the shooting.”
    -30-
    Robert “Gus” Radford testified that he served as the District Attorney General for the
    Twenty-Fourth Judicial District for twenty-four years and was appointed to prosecute the
    Petitioner after General Carney’s office recused itself. At the time of the appointment, the
    Petitioner was facing the death penalty. Radford received investigative and secretarial
    assistance from General Carney’s office. He said he also received help from Jeff Puckett,
    “who was the Agent in charge.” Radford’s office did not prosecute Courtney Mathews and
    did not participate in the investigation of Mathews’s case. However, Radford had a transcript
    of Mathews’s trial. Radford said that he turned over everything from discovery that was
    required and that lead counsel was “free to look” in the Petitioner’s file. Radford said he did
    not remember giving Larry Underhill anything in exchange for Underhill’s testimony against
    the Petitioner. However, he identified a letter written by Underhill, stating that Radford had
    promised to write letters to the parole board on Underhill’s behalf. Radford said he never
    made such a promise and that he turned over the letter to defense counsel. Radford also
    identified a letter from Underhill in which Underhill requested that he not lose his prison cell
    while he was testifying at the Petitioner’s trial. Radford said he did not remember contacting
    anyone at the prison. He acknowledged that at the Petitioner’s trial, Underhill denied
    receiving anything in exchange for Underhill’s testimony.
    Radford acknowledged that after the jury convicted the Petitioner, Radford received
    a timeline. He reviewed the timeline, but it did not change his opinion of the Petitioner’s
    guilt. The State’s theory of the case was that Mathews was the shooter and that the Petitioner
    acted as a lookout or drove the getaway car. Radford acknowledged that the timeline did not
    “accord with” the State’s theory that the Petitioner participated in the robbery or helped plan
    the crimes. He said that he did not consider the timeline to be credible evidence and that he
    still thought the Petitioner was guilty.
    On cross-examination, Radford testified that he decided not to pursue the death
    penalty against the Petitioner because the shooter, Mathews, was not sentenced to death.
    Lead counsel did not think the Petitioner was guilty and wanted Radford to dismiss the case.
    Radford said that lead counsel was a “hard-fighting adversary” for the Petitioner and that
    lead counsel “held my feet to the fire.”
    Robert C. Inserra testified that in 1994, he was the Special Agent in Charge of the CID
    office at Fort Campbell. After the Taco Bell crimes, Inserra assigned Agent Carter Smith to
    the case due to Mathews’s being in the military. However, civilian officers and agencies did
    most of the work in the case. According to a report about the case filed by the CID in
    September 1994, the Petitioner was not suspected of having participated in the Taco Bell
    crimes.
    Carter Smith testified that in 1994, he was a CID special agent for the Army at Fort
    -31-
    Campbell and was assigned to the Taco Bell case. According to a CID report, the Petitioner
    was not suspected in the crimes.
    Lanny Wilder, the Assistant Director of the TBI, testified that in 1994, he was the
    Director of the TBI’s Nashville Laboratory. Wilder administered two polygraph
    examinations to the Petitioner. The first examination occurred in March 1994, and the
    second occurred in October 1995. Agent Jeff Puckett requested both examinations, and the
    Petitioner signed polygraph waiver of rights forms and Miranda waiver of rights forms for
    the exams. Agent Puckett witnessed the second examination but not the first examination.
    Although the Petitioner had an attorney at the time of the second polygraph, counsel was not
    present during the examination.
    Lead counsel testified that he graduated from law school in 1974 and worked for the
    Tennessee Attorney General for ten years, handling civil litigation and some criminal
    appeals. In 1984, he entered private practice, and in 1994, he opened his own law firm,
    focusing on federal civil and criminal litigation. In December 1995, the trial court appointed
    him to represent the Petitioner. Co-counsel worked for lead counsel’s law firm and assisted
    him with the case. Lead counsel spoke with pretrial counsel several times. Lead counsel
    acknowledged that the Petitioner had been interrogated at the CID office and said that he did
    not remember if the Petitioner received Miranda warnings prior to the interrogations. He said
    he thought that “if there was a waiver it had to do with a polygraph and not Miranda.” The
    Petitioner gave a statement to authorities on March 21, 1994. In the statement, he claimed
    he overheard Mathews talking about planning to commit a robbery. Lead counsel said that
    the Petitioner gave the statement in order to obtain a bond reduction and that the statement
    was “fruit” of the statements he gave at the CID office. Lead counsel acknowledged that if
    the Petitioner had not given the March 21 statement, authorities would have had no reason
    to call him back to Clarksville in October 1995. Therefore, the Petitioner’s proffer statement
    was “a fruit” of his previous statements.
    Lead counsel acknowledged that during an interview with the Petitioner on October
    20, 1995, Agent Jeff Puckett asked the Petitioner, without pretrial counsel present, if the
    Petitioner was telling the truth. Lead counsel also acknowledged that the Petitioner told
    Agent Puckett that he gave Mathews the idea to kill the victims. Nothing indicated that the
    Petitioner was advised of his Miranda rights prior to his admission. Pretrial counsel was
    present for the remainder of the Petitioner’s interview. However, pretrial counsel was not
    present when the Petitioner gave his proffer statement later that day. Lead counsel did not
    remember if the Petitioner received any Miranda warnings prior to giving the proffer
    statement. Lead counsel said that the Petitioner’s story about the Taco Bell crimes changed
    “when a carrot was put in front of him” and that “[w]e should have gone after the
    voluntariness of those statements. We should have attacked those statements as being in
    -32-
    violation of Miranda, as being involuntary.” The trial court held a pretrial suppression
    hearing in April 1997. Lead counsel acknowledged that at the hearing, the defense
    challenged the admissibility of the proffer statement based only on the fact that it was
    substantially false. He explained,
    We put the statements in the binder and took them to the
    suppression hearing and tried to use them to show that the final
    statement was not true, which is something I believe 110
    percent. But the -- and, again, there was an -- there was a -
    another course that we could have pursued at the same time, and
    that would have been that they were -- they were coerced, not
    voluntary, not Mirandized.
    However, lead counsel also said that the Petitioner’s statements were beneficial to the
    defense “because they show, really, that the final statement was nonsense.”
    Lead counsel testified that the Petitioner signed a negotiated plea agreement on
    November 19, 1995. According to the agreement, the Petitioner’s false proffer statement
    could be used against him if he breached the agreement. Lead counsel said that the State’s
    use of the proffer statement would have been inconsistent with the Tennessee Rules of
    Criminal Procedure and that a breach of the agreement should have resulted in the proffer
    statement being inadmissible. He stated,
    So typically, you would make the statement if it’s truthful
    the -- the agreement is to [plead] guilty, you [plead] guilty, you
    provide the cooperation, you get the benefit of the cooperation
    and you’re sentenced. If that process breaks down, the proffer
    itself is part of the negotiation of the guilty plea, and the
    negotiation of a guilty plea, it’s negotiation, and you don’t agree
    to allow a broken down negotiation to be used against you if it
    breaks down.
    The proffer agreement also gave the State unilateral power to determine the value and truth
    of the Petitioner’s proffer statement. Lead counsel said that such unilateral power was not
    unusual; however, if the State declared a breach, “back to your corners, start all over again.
    You know, you’re back to where you were before you started this.” He said that it would
    have been “below the standard of representation” for an attorney to have allowed a client’s
    statement to be used against the client in the event of a breach and that “nobody gets
    evidence from a negotiation.”
    -33-
    Lead counsel testified that the Petitioner never entered a guilty plea pursuant to the
    proffer agreement because the State declared the Petitioner breached agreement by
    implicating Sulyn Ulangca in the crimes. Lead counsel thought the Petitioner falsely
    implicated Ulangca in a conspiracy and, therefore, that the State could prove the Petitioner
    breached the agreement. However, lead counsel said that General Carney’s use of the proffer
    statement to indict the Petitioner and General Radford’s use of the statement at trial
    “certainly [made] the argument” that the State did not consider the breach to be a material
    breach.
    Lead counsel acknowledged that he did not file a motion to quash the indictment
    based on the State’s improper use of the proffer statement. He said the defense should have
    argued that the statement was inadmissible under Rule 410, Tennessee Rules of Evidence,
    because it was made in the course of plea negotiations. He stated that Rule 410 “was a
    clean, clear shot rather than trying to prove the falsity [of the statement].” The proffer
    agreement did not contain an express waiver of Rule 410, and nothing indicated that the
    Petitioner had been advised about waiving the Rule. Lead counsel acknowledged that Rule
    11, Tennessee Rules of Criminal Procedure, incorporated Rule 410 and said that the defense
    also did not try to exclude the proffer statement from evidence pursuant to Rule 11. He
    stated that the defense’s failure to argue either rule at the motion to suppress hearing was a
    mistake and “[a]bsolutely” prejudiced the Petitioner. Lead counsel never challenged the
    legality of the proffer agreement. He said that, in his opinion, the State did not have a case
    without the proffer statement and that the defense should have argued that the State either
    had to give the Petitioner “the benefit of the deal or not use the statement. That’s typically
    the process.”
    Lead counsel testified that after a jury convicted Mathews, he and co-counsel met with
    Jim Simmons and Skip Gant. He acknowledged that Gant told him and co-counsel that the
    Petitioner was innocent. Lead counsel said he could tell from Gant’s body language that
    Mathews had told Gant that the Petitioner was not involved in the crimes. Glori Shettles
    from Inquisitor, Inc., worked on the Petitioner’s defense, and her work was not restricted to
    mitigation. Lead counsel did not think that Inquisitor’s involvement in both cases was a
    conflict of interest. However, lead counsel later learned that Shettles had received
    information from Mathews that the Petitioner was innocent. Lead counsel said that it
    “[seemed] like” Shettles had an obligation to tell the defense what Mathews revealed to her.
    Lead counsel did not remember an agreement in which Inquisitor’s investigators could work
    on the Petitioner’s case if they did not reveal any information from Mathews. Lead counsel
    subpoenaed Mathews for the Petitioner’s trial but thought calling Mathews to testify for the
    defense was “too risky” because lead counsel was not sure Mathews would tell the truth and
    exonerate the Petitioner. Lead counsel had hoped Mathews would sign an affidavit stating
    that the Petitioner was not involved in the crimes, but Mathews refused.
    -34-
    Lead counsel testified that the defense received a redacted timeline of the crimes and
    that co-counsel found an unredacted timeline. The unredacted version contained information
    from interviews with Mathews, which Simmons and Gant determined was protected by
    attorney/client privilege. The unredacted timeline would have been beneficial to the
    Petitioner’s defense because it corroborated other evidence in the case and did not mention
    the Petitioner. Lead counsel said, “[I]t was a mistake not to involve . . . that unredacted
    timeline in the trial.” Lead counsel said he should have called Ron Lax to testify as a witness
    at trial and should have tried to introduce the timeline into evidence through Lax. Lead
    counsel stated that although the trial court may have excluded the timeline from evidence
    based on privilege, Lax “should have had this [timeline] stuck in his face, and see what
    happens.” Lead counsel was not aware of Larry Underhill’s letters to General Radford until
    after the Petitioner’s appeals concluded.
    On cross-examination, lead counsel testified that he did not have trouble
    communicating with the Petitioner. The defense worked hard on the Petitioner’s case, used
    the resources available, and spent a lot of time preparing for trial. Lead counsel thought he
    and co-counsel were prepared for trial, given the resources they had for the case. Lead
    counsel said that in retrospect, he was concerned about two issues: The defense’s failure to
    argue that the proffer statement was inadmissible under Rule 410, Tennessee Rules of
    Evidence, and the defense’s failure to use the unredacted timeline at trial. He stated that,
    arguably, “a reasonably prudent attorney would have gone further and done a better job on
    those issues than we did.” He acknowledged that the Petitioner’s initial statements at the
    CID office were exculpatory because the Petitioner denied any involvement in the Taco Bell
    crimes. Nevertheless, if lead counsel had successfully excluded those statements and the
    Petitioner’s March 1994 statements from evidence, the proffer statement may have been
    excluded as fruit of the poisonous tree. Without the proffer statement, the State might not
    have pursued the case against the Petitioner. Lead counsel acknowledged that in the
    unredacted timeline, a witness named Allen Charvis claimed he heard Mathews and the
    Petitioner at the party trailer discussing the robbery. Therefore, the timeline implicated the
    Petitioner. In addition, James Bowen testified at trial that he heard the Petitioner and
    Mathews talking about the robbery. However, Bowen also testified at trial that the Petitioner
    and Sulyn Ulancga were sleeping in the bedroom next to his at the time of the Taco Bell
    crimes. Lead counsel said that when the Petitioner “went from witness to target,” pretrial
    counsel should have stopped the Petitioner from meeting with prosecutors and police until
    pretrial counsel “ascertained [the Petitioner] was a target and ascertained his exposure.”
    Lead counsel acknowledged that the proffer agreement specifically prohibited the
    Petitioner from falsely implicating anyone in the crimes and said that the State would have
    been able to show that the Petitioner breached the agreement. The defense’s theory was that
    Mathews acted alone, that the Petitioner’s proffer statement was false, and that the statement
    -35-
    should not be used in the courtroom. Lead counsel thought the jury would recognize the
    falsity of the statement. When asked if Mathews could have argued that the information in
    the unredacted timeline was privileged, lead counsel said, “I cannot answer. . . . You’re
    asking me to make a -- essentially a judicial ruling on a legal question.” He stated that
    Mathews’s version of the crimes was credible because it was consistent with the forensic
    evidence. He acknowledged that although Mathews’s version did not mention the Petitioner,
    there was no evidence that the Petitioner was inside Taco Bell at the time of the crimes.
    On redirect examination, lead counsel testified that “we wanted this [proffer]
    statement out of the case.” Even before the State gave Sulyn Ulangca a polygraph and talked
    with her, it should have recognized from its investigation that the Petitioner’s proffer
    statement was false.
    Lead counsel’s testimony concluded on December 18, 2009, and the Petitioner rested
    his case. The State did not present any witnesses.
    On September 23, 2010, the post-conviction court filed a written order granting the
    Petitioner’s petitions for post-conviction relief and writ of error coram nobis. Regarding the
    petition for post-conviction relief, the court determined that the Petitioner received the
    ineffective assistance of counsel on the following issues:
    1. Trial counsel should have challenged the State’s declaration
    that the Petitioner breached the proffer agreement because the
    State would have been unable to show that the Petitioner
    “materially” breached the agreement.
    2. Trial counsel should have challenged the proffer agreement
    as void and illusory because it allowed the State to determine
    unilaterally if the Petitioner breached the agreement.
    3. Trial counsel should have challenged the State’s use of the
    proffer statement against the Petitioner because the State could
    not use the statement pursuant to Rule 410, Tennessee Rules of
    Evidence.
    4. Trial counsel should have challenged the admissibility of the
    proffer statement pursuant to Miranda v. Arizona, 
    384 U.S. 450
    (1966).
    5. Trial counsel used investigators who had a conflict of interest
    -36-
    due to their work in Mathews’s case.
    Regarding the petition for writ of error coram nobis, the post-conviction court
    determined that the Petitioner was entitled to relief because newly discovered evidence had
    become available from witnesses who could now testify for the Petitioner that Mathews told
    them he committed the murders alone. The State appeals the post-conviction court’s granting
    the petitions.
    III. Post-Conviction Analysis
    On appeal, the State challenges the post-conviction court’s findings regarding the
    Petitioner’s receiving the ineffective assistance of counsel. Specifically, the State contends
    that the court erred by concluding that counsel’s performance was deficient because counsel
    (1) failed to challenge the State’s declaration of a material breach; (2) failed to challenge the
    proffer agreement as void and illusory due to the State’s unilateral power to declare a breach;
    (3) failed to challenge the admissibility of the proffer statement under Rule 410, Tennessee
    Rules of Evidence; (4) failed to challenge the admissibility of the proffer statement under
    Miranda; and (5) retained Mathews’s investigators for the investigation of the Petitioner’s
    case. The Petitioner argues that the post-conviction court properly granted his petition for
    post-conviction relief.4 We agree with the Petitioner.
    To be successful in a claim for post-conviction relief, a petitioner must prove factual
    allegations contained in the post-conviction petition by clear and convincing evidence. See
    Tenn. Code Ann. § 40-30-110(f). “‘Clear and convincing evidence means evidence in which
    there is no serious or substantial doubt about the correctness of the conclusions drawn from
    the evidence.’” State v. Holder, 
    15 S.W.3d 905
    , 911 (Tenn. Crim. App. 1999) (quoting
    Hodges v. S.C. Toof & Co., 
    833 S.W.2d 896
    , 901 n.3 (Tenn. 1992)). Issues regarding the
    credibility of witnesses, the weight and value to be accorded their testimony, and the factual
    questions raised by the evidence adduced at trial are to be resolved by the post-conviction
    court as the trier of fact. See Henley v. State, 
    960 S.W.2d 572
    , 579 (Tenn. 1997). Therefore,
    the post-conviction court’s findings of fact are entitled to substantial deference on appeal
    unless the evidence preponderates against those findings. See Fields v. State, 
    40 S.W.3d 450
    ,
    458 (Tenn. 2001).
    A claim of ineffective assistance of counsel is a mixed question of law and fact. See
    State v. Burns, 
    6 S.W.3d 453
    , 461 (Tenn. 1999). We will review the post-conviction court’s
    4
    The Petitioner also raises numerous counter-claims. However, given our conclusion that the
    post-conviction court properly granted the petition for post-conviction relief, it is unnecessary to address
    those claims.
    -37-
    findings of fact de novo with a presumption that those findings are correct. See Fields, 40
    S.W.3d at 458. However, we will review the post-conviction court’s conclusions of law
    purely de novo. Id.
    When a petitioner seeks post-conviction relief on the basis of ineffective assistance
    of counsel, “the petitioner bears the burden of proving both that counsel’s performance was
    deficient and that the deficiency prejudiced the defense.” Goad v. State, 
    938 S.W.2d 363
    ,
    369 (Tenn. 1996) (citing Strickland v. Washington, 
    466 U.S. 668
    , 687 (1984)). To establish
    deficient performance, the petitioner must show that counsel’s performance was below “the
    range of competence demanded of attorneys in criminal cases.” Baxter v. Rose, 
    523 S.W.2d 930
    , 936 (Tenn. 1975). To establish prejudice, the petitioner must show that “there is a
    reasonable probability that, but for counsel’s unprofessional errors, the result of the
    proceeding would have been different. A reasonable probability is a probability sufficient
    to undermine confidence in the outcome.” Strickland, 466 U.S. at 694. Further,
    [b]ecause a petitioner must establish both prongs of the test, a
    failure to prove either deficiency or prejudice provides a
    sufficient basis to deny relief on the ineffective assistance claim.
    Indeed, a court need not address the components in any
    particular order or even address both if the [petitioner] makes an
    insufficient showing of one component.
    Goad, 938 S.W.2d at 370 (citing Strickland, 466 U.S. at 697).
    A. Failure to Challenge State’s Declaration of a “Material” Breach
    The State contends that the post-conviction court erred by determining that trial
    counsel rendered ineffective assistance for failing to challenge the State’s declaration of a
    “material” breach. The State argues that the benefit it expected to receive under the proffer
    agreement was complete and truthful information; that the Petitioner provided a
    “considerable amount” of untrue information to authorities, including falsely accusing Sulyn
    Ulangca and two others; and that the Petitioner’s lies, particularly his falsely implicating
    Ulangca, constituted a material breach of the agreement. The Petitioner argues that counsel
    should have challenged the State’s declaration of a breach because the State could not prove
    the breach was material. We conclude that the Petitioner materially breached the agreement
    but that the State’s remedy for the breach did not include using the statement to convict him
    of four counts of first degree premeditated murder. Therefore, counsel was ineffective for
    failing to challenge the State’s declaration of a material breach.
    In its order granting post-conviction relief, the post-conviction court specifically
    -38-
    found that the agreement at issue was a plea agreement. However, at the time the parties
    entered into the agreement, the Petitioner had not been charged with an offense related to the
    Taco Bell crimes. As the Fourth Circuit Court of Appeals explained,
    [A] grant of immunity differs from a plea agreement in that it in
    no way involves court approval. In the case of a plea agreement,
    the court in essence executes the agreement by accepting the
    plea of guilty. In the case of a grant of immunity, however, only
    two parties are involved. The government alone makes a
    decision not to prosecute in exchange for testimony which will,
    hopefully, lead to a greater number of indictments or
    convictions. The most that one granted immunity can do is to
    agree to testify and then await the call of the government.
    Plaster v. United States, 
    789 F.2d 289
    , 293 (4th Cir. 1986). An agreement such as this one,
    in which a prosecutor promises not to prosecute a defendant fully in exchange for the
    defendant’s truthful information and testimony, is a cooperation-immunity agreement. See
    State v. Howington, 
    907 S.W.2d 403
    , 404-05 & n.1 (Tenn. 1995).
    Cooperation-immunity agreements, like plea agreements, are enforceable as contracts.
    Id. at 408; State v. Spradlin, 
    12 S.W.3d 432
    , 435 (Tenn. 2000). However, a cooperation-
    immunity agreement “is different from the average commercial contract as it involves a
    criminal prosecution where due process rights must be fiercely protected.” Howington, 907
    S.W.2d at 410. As a result, a court must construe any ambiguities in the agreement against
    the State. Id. “What constitutes a breach of the agreement is governed by the agreement
    itself.” State v. Larry Cunningham, No. 02-C-01-9506-CC-00172, 1996 Tenn. Crim. App.
    LEXIS 596, at *8 (Jackson, Sept. 30, 1996) (citing Howington, 907 S.W.2d at 410). In order
    for the State to show that a defendant breached an agreement, it “must prove beyond a
    reasonable doubt that [the defendant] failed to deliver on his part of the deal.” Howington,
    907 S.W.2d at 409. The following circumstances are to be considered when determining
    whether a breach is material:
    (a) the extent to which the injured party will be deprived
    of the benefit which he reasonably expected;
    (b) the extent to which the injured party can be
    adequately compensated for the part of that benefit of which he
    will be deprived;
    (c) the extent to which the party failing to perform or to
    -39-
    offer to perform will suffer forfeiture;
    (d) the likelihood that the party failing to perform or to
    offer to perform will cure his failure, taking account of all the
    circumstances including any reasonable assurances;
    (e) the extent to which the behavior of the party failing
    to perform or to offer to perform comports with standards of
    good faith and fair dealing.
    Howington, 907 S.W.2d at 410-11 (quoting Restatement (Second) of Contracts § 241). In
    addition, “in the area of informal immunity agreements where a criminal defendant is
    necessarily involved, ‘the most important consideration is the incriminating nature of the
    proferred [sic] statements, not the amount of information provided to the government.’” Id.
    at 411 (quoting United States v. Fitch, 
    964 F.2d 571
    , 574 (6th Cir. 1992)).
    “Although the interpretation of a contract is a question of law which we review de
    novo, with no presumption of correctness for the conclusions of the trial court, State ex rel.
    Pope v. U.S. Fire Insurance Co., 
    145 S.W.3d 529
    , 533 (Tenn. 2004), the determination of
    whether a breach has occurred is a question of fact for the trier of fact.” Regions Bank v.
    Thomas, No. W2011-02320-COA-R3-CV, 2013 Tenn. App. LEXIS 156, at *23 (Jackson,
    March 4, 2013). Our supreme court has held that a defendant’s failure to testify truthfully
    when an agreement specified that he do so constituted a material breach. See State v.
    Mellon, 
    118 S.W.3d 340
    , 347 (Tenn. 2003). Moreover, as the Sixth Circuit explained,
    “Although an inadvertent omission or oversight would not rise
    to the level of a materially false statement so as to constitute a
    breach of the agreement, a bad faith, intentional, substantial
    omission . . . does constitute a materially false statement and
    thereby a breach of the agreement.”
    Fitch, 964 F.2d at 574 (quoting United States v. Castelbuono, 
    643 F. Supp. 965
    , 971
    (E.D.N.Y. 1986)).
    Turning to the instant case, the post-conviction court, without considering the
    Howington factors, determined that the Petitioner’s breach was not material because,
    although his statement falsely implicated Sulyn Ulangca, it contained other information that
    incriminated Courtney Mathews. Therefore, the State received the benefit of its bargain with
    the Petitioner. The post-conviction court also concluded that even if the State could show
    a material breach, the State’s only two remedies were specific performance of the agreement,
    -40-
    i.e., allowing the Petitioner to plead guilty and receive the effective fifteen-year sentence, or
    rescission of the agreement, which would have put the parties in the same position they were
    before they entered the agreement.
    Paragraph 3 of the agreement’s “terms and conditions” provided that the Petitioner
    had to “supply complete and truthful information to the attorneys and law enforcement
    officers of the government, the State grand jury conducting this investigation, and the Court.”
    The paragraph also specified that the Petitioner “must neither attempt to protect any person
    or entity through false information or omission, nor falsely implicate any person or entity.”
    Paragraph 1 stated that if the Petitioner violated the terms of the agreement, then the
    information “may and will be used against him for any purpose, including prosecution for
    crimes other than perjury.” Paragraph 6 of the agreement specified that “any untruth within
    the proffer may be the predicate for additional criminal charges, if it appears that he has
    falsely implicated an innocent person.”
    The State contends that the Petitioner’s lies, particularly his lies about Ulangca,
    Darwish, and Tween participating in the Taco Bell crimes, resulted in the State’s being
    deprived of the benefit it expected from the proffer statement: truthful information about the
    crimes. We agree with the State. The record demonstrates that the benefit the State expected
    was truthful information the State could use to prosecute Mathews and others involved in the
    murders. However, the Petitioner lied throughout the statement, and his untruths misled the
    State and deprived the State of that benefit. The trial court found that the breach was not
    material because the statement contained other information that incriminated Mathews.
    However, nothing in record indicates that the State used the Petitioner’s statement to further
    its case against Mathews, and the State did not call the Petitioner to testify against Mathews
    at trial, presumably because the Petitioner had become too untrustworthy to call as a witness.
    We note that, despite the Petitioner’s lying in the statement, the State still received some
    benefit from its bargain because the agreement provided that the Petitioner would be charged
    with conspiracy to commit first degree murder for his participation in the crimes. Moreover,
    although the State claims that the Petitioner’s statement was so false that it deprived the State
    of the benefit it expected, the State used the Petitioner’s statement partially for its truth to
    convict him of four counts of first degree murder. Nevertheless, the Petitioner’s lies were
    so extensive and egregious that this factor weighs heavily in support of the State’s theory of
    a material breach.
    Regarding the extent to which the State could be compensated adequately for the
    breach, the agreement provided that the State could prosecute the Petitioner for crimes such
    as perjury. However, revoking the agreement so that the State could prosecute him for the
    substantive crimes would be the adequate compensation. Thus, this consideration weighs in
    favor of finding a material breach. Regarding the extent to which the Petitioner’s behavior
    -41-
    failed to comport with standards of good faith and fair dealing, we note that the Petitioner
    returned to Clarksville every time he was summoned by authorities and gave a statement
    every time they requested one. Nevertheless, the evidence shows that the Petitioner
    intentionally and repeatedly lied in his proffer statement, which supports finding a material
    breach. Finally, the Petitioner gave self-incriminating information about the crimes,
    information so self-incriminating that it ultimately resulted in his being tried and convicted
    of four counts of first degree murder. The degree of the incriminating information does not
    support a finding of a material breach. Although a close case, we conclude that the State has
    shown that the Petitioner materially breached the agreement.
    Having concluded that the Petitioner materially breached the agreement, we must
    determine the appropriate remedy. As the post-conviction court correctly noted, in the event
    of a defendant’s material breach, the State either can specifically enforce the agreement or
    rescind the agreement. See State v. Mellon, 
    118 S.W.3d 340
    , 346 (Tenn. 2003) (stating that
    if a defendant breaches a plea agreement, the State has the option to specifically enforce the
    agreement or rescind it). “An order of specific performance is intended to produce as nearly
    as is practicable the same effect that the performance due under a contract would have
    produced. It usually, therefore, orders a party to render the performance that he promised.”
    Restatement Second of Contracts § 357 cmt. a (1981). The State did not choose this remedy.
    In any event, had the state chosen specific performance, it would have been bound to charge
    the Petitioner with conspiracy to commit first degree murder and enter into a plea agreement
    with him for guilty pleas to that charge and robbery in exchange for an effective fifteen-year
    sentence. Instead, the State chose rescission in which “the parties are restored to their
    respective positions prior to the transaction.” Blanco v. United States, 
    602 F.2d 324
    , 327 (Ct.
    Cl. 1979). The Petitioner gave his statement after he and the State entered into the proffer
    agreement. Therefore, rescission of the agreement did not allow use of the statement to
    convict him of four counts of first degree murder, and the Petitioner was prejudiced by trial
    counsel’s failure to challenge the materiality of the breach.
    B. Failure to Challenge Proffer Agreement as Void and Illusory
    Next, the State claims that the post-conviction court erred by determining that trial
    counsel were ineffective for failing to challenge the proffer agreement as void and illusory
    because it allowed the State to determine unilaterally if the Petitioner was truthful in his
    statement. The State argues that the proffer agreement was a valid bargained-for exchange
    and that the trial court would not have invalidated it “under Howington or any other principle
    of law.” The State also contends that even if the unilateral provision of the proffer agreement
    was unenforceable, it did not invalidate the entire agreement. The Petitioner argues that the
    proffer agreement was unenforceable because the trial court did not approve it pursuant to
    Tennessee Rules of Criminal Procedure 11. The Petitioner also argues that the post-
    -42-
    conviction court correctly determined that the agreement was unenforceable due to the
    State’s unilateral authority to declare a breach. We conclude that the State’s unilateral power
    to declare a breach was unenforceable and that the Petitioner has shown he was prejudiced
    by trial counsel’s failure to challenge the agreement on that ground.
    The proffer agreement provided, “Whether or not [the Petitioner] has told the truth
    is an issue that [the district attorney’s] office shall decide in its sole discretion.” In his post-
    conviction petition, the Petitioner argued that the proffer agreement was void and illusory
    because it gave the State “complete and unfettered unilateral power” to determine a breach.
    The post-conviction court, with little explanation, agreed with the Petitioner, concluding that
    “[i]n light of due process concerns, it is unlikely that the trial court would have upheld the
    validity of an agreement in which the State could declare a breach without judicial
    declaration that a breach had occurred.” Moreover, the court stated, without any explanation,
    that “had counsel challenged this provision of the agreement, it would have led to the [trial
    court] declaring that this provision rendered the entire agreement void.”
    First, we will address the Petitioner’s claim that the proffer agreement was
    unenforceable because it had not been approved by the trial court pursuant to Tennessee
    Rules of Criminal Procedure 11(c) regarding a trial court’s acceptance or rejection of a guilty
    plea. We disagree with the Petitioner. Once again, the agreement at issue was a cooperation-
    immunity agreement. While similar to a plea agreement, adherence to a cooperation-
    immunity agreement “is the responsibility of the prosecutor alone while a plea agreement is
    subject to the approval of the court.” United States v. Mark Dorsett, 
    2009 U.S. Dist. LEXIS 64203
    , at *11 (D. Neb. July 23, 2009) (citing United States v. Minnesota Mining & Mfg. Co.,
    
    551 F.2d 1106
    , 1112 (8th Cir. 1977)); see State v. John A. Boatfield, No.
    E2000-01500-CCA-R3-CD, 2001 Tenn. Crim. App. LEXIS 955, at *23 (Knoxville, Dec. 20,
    2001) (noting that Howington differentiated between immunity and plea agreements and
    stating that “[t]he Howington court . . . clearly stated plea agreements were only enforceable
    once the condition precedent of the trial court’s acceptance of the agreement is met”).
    Therefore, approval of the proffer agreement by the trial court pursuant to Rule 11,
    Tennessee Rules of Criminal Procedure, was not required in order for the agreement to be
    enforceable.
    Next, we will determine whether the State’s unilateral power to declare the truth of
    the Petitioner’s proffer statement invalidated the proffer agreement. As stated previously,
    for cases involving a cooperation-immunity agreement, due process rights must be “fiercely
    protected.” Howington, 907 S.W.2d at 410. As a result, the State must be held to a high
    evidentiary standard when it tries to show that a defendant breached an agreement. Id.
    Although not addressed by any courts in this state, federal courts have held that when the
    government determines that a defendant has breached the terms of a cooperation-immunity
    -43-
    agreement and intends to be relieved of its part of the bargain, due process prevents the
    government from making that determination unilaterally. United States v. Meyer, 
    157 F.3d 1067
    , 1076 (7th Cir. 1998); United States v. Castaneda, 
    162 F.3d 832
    , 836 (5th Cir. 1998);
    United States v. Brown, 
    801 F.2d 352
    , 355 (8th Cir. 1986); G.D. Searle & Co. v. Interstate
    Drug Exchange, Inc., 
    117 F.R.D. 495
    , 502 (E.D.N.Y. 1987); United States v. Mark Dorsett,
    No. 8:08CR356, 
    2009 U.S. Dist. LEXIS 64203
    , at *12 (D. Neb., July 23, 2009).
    Given the due process concerns involving cooperation-immunity agreements,
    particularly agreements that give the State the right to use a defendant’s incriminating
    statement against him in the event of a material breach, we are persuaded by federal authority
    that the unilateral provision did not invalidate the entire agreement but that the State’s
    unilateral power to declare a breach was unenforceable and that judicial determination of the
    breach was required. Therefore, had trial counsel challenged the State’s declaration of a
    material breach, the Petitioner would have been entitled to a judicial determination of the
    issue. Moreover, based upon our conclusion in the previous section that the trial court would
    have determined that the Petitioner materially breached the agreement but that the State’s
    remedy would have prevented it from using the Petitioner’s statement, the Petitioner has
    shown that he was prejudiced by trial counsel’s failure to challenge the State’s unilateral
    power to declare a breach.
    C. Failure to Challenge Proffer Statement Pursuant to Tennessee Rule of Evidence 410
    The State contends that the post-conviction court erred by determining that trial
    counsel were ineffective for failing to challenge the admissibility of the Petitioner’s proffer
    statement pursuant to Rule 410, Tennessee Rules of Evidence. The Petitioner contends that
    the court properly concluded that he received the ineffective assistance of counsel. We agree
    with the Petitioner.
    Relevant to this case, Tennessee Rule of Evidence 410 provides as follows:
    Except as otherwise provided in this rule, evidence of the
    following is not, in any civil or criminal proceeding, admissible
    against the party who made the plea or was a participant in the
    plea discussions:
    ....
    (4) Any statement made in the course of plea discussions
    with an attorney for the prosecuting authority which do not
    result in a plea of guilty or which result in a plea of guilty later
    -44-
    withdrawn. Such a statement is admissible, however, in a
    criminal proceeding for perjury or false statement if the
    statement was made by the defendant under oath, on the record,
    and in the presence of counsel.
    Similarly, prior to 2007, Rule 11(e)(6), Tennessee Rules of Criminal Procedure, provided that
    “evidence of a plea of guilty, later withdrawn, . . . or of statements made in connection with,
    and relevant to, any of the foregoing pleas or offers, is not admissible in any civil or criminal
    proceeding against the person who made the plea or offer.” 5
    The right guaranteed by Rule 410 is waivable. See State v. Hinton, 
    42 S.W.3d 113
    ,
    123-24 (Tenn. Crim. App. 2000) (citing United States v. Mezzanatto, 
    513 U.S. 196
     (1995)).
    In Hinton, this court addressed whether a defendant knowingly waived the rights afforded
    by Rule 410, Tennessee Rules of Evidence, and Rule 11(e)(6), Tennessee Rules of Criminal
    Procedure. The State argued that the defendant knowingly waived the rights afforded by the
    Rules because he gave the statement after being told that it could be used against him. This
    court stated,
    In the present case, however, we believe that the record
    affirmatively indicates that the defendant did not knowingly
    waive the specific rights afforded by Rules 410 and 11(e)(6).
    Tennessee courts have determined what constitutes a knowing
    waiver in the context of other rights, such as the waiver of the
    right to trial and the waiver of the right against
    self-incrimination. See State v. Mackey, 
    553 S.W.2d 337
    , 340
    (Tenn. 1977); State v. Stephenson, 
    878 S.W.2d 530
    , 544-45
    (Tenn. 1994). A “knowing” waiver is one that is “made with
    full awareness of both the nature of the right being abandoned
    and the consequences of the decision to abandon it.” Id. (citing
    Fare v. Michael C., 
    442 U.S. 707
     (1970); North Carolina v.
    Butler, 
    441 U.S. 369
     (1979)). This standard for a knowing
    waiver has been applied, as well, to the waiver of the statute of
    limitations. See State v. Pearson, 
    858 S.W.2d 879
    , 887 (Tenn.
    1993). In that case, our supreme court determined that
    defendants can waive the statute of limitations but that the
    waiver must be knowing and voluntary. Id. The court
    5
    Tennessee Rule of Criminal Procedure Rule 11 was amended in 2007, and Rule 11(e)(6) was
    eliminated. Rule 11(d) now provides, “The admissibility of a plea, plea discussion, or any related
    statement is governed by Tennessee Rule of Evidence 410.”
    -45-
    determined that no evidence existed in the record to indicate that
    the defendant’s waiver was knowing and voluntary, stating that
    “there was no discussion at all of the expiration of the statute of
    limitations in the trial court.” Id. It held that “[a] waiver . . .
    will not be presumed where there is no evidence . . . to indicate
    that the appellant was made aware of the issue.” Id.; see also
    United States v. Young, 
    73 F. Supp. 2d 1014
    , 1024 (N.D. Iowa
    1999) (holding that the defendant, who was informed only that
    his statement could be used against him if he backed out of the
    plea agreement, did not knowingly waive his rights pursuant to
    Rules 410 and 11(e)(6) because he was not “advised of the
    existence of a right not to have plea statements used in a
    subsequent trial or other proceeding.”). Id. at 1024.
    Hinton, 42 S.W.3d at 124.
    Turning to the instant case, the State does not contest that the Petitioner gave his
    proffer statement in the course of plea negotiations. Instead, the State contends that the
    proffer agreement specifically waived any claim by the Petitioner that the proffer statement
    was inadmissible under Rule 410. The term of the proffer agreement on which the State
    relies provided,
    If your client violates the terms of the agreement, any such
    testimony or other information provided by your client to
    attorneys or law enforcement officers of the government . . .
    may and will be used against him for any purpose, including
    prosecution for crimes other than perjury. No statement or other
    information provided by your client shall be deemed to be
    precluded from use against him in case of his breach of this
    agreement.
    Initially, we again note that the agreement at issue was not a plea agreement.
    Nevertheless, the discussions between the Petitioner, the district attorney, and the
    investigators occurred in furtherance of the parties’ plan for the Petitioner to plead guilty to
    conspiracy to commit murder.6 The post-conviction court, citing Hinton, concluded that
    nothing in the record demonstrated that the Petitioner knowingly and voluntarily waived his
    rights under Rules 410 and 11(e)(6). We agree with the post-conviction court. The
    6
    As noted previously, when asked if the proffer agreement could be considered a plea
    negotiation, General Carney answered, “It was taken in that context, yes.”
    -46-
    Petitioner testified that pretrial counsel never explained the proffer agreement to him and
    never told him that the State would be able to use the proffer statement if he breached the
    agreement. Pretrial counsel, on the other hand, testified that he went over every sentence of
    the agreement with the Petitioner and told the Petitioner that the State could use the statement
    if he lied. Regardless, we have carefully reviewed the proffer agreement, and the agreement
    did not advise the Petitioner of his right not to have the proffer statement used against him
    in a subsequent trial or other proceeding and did not advise him that his signing the proffer
    agreement would constitute a waiver of that right. In fact, there is no indication that the
    Petitioner was even aware of the protections afforded by Rule 410. Therefore, we conclude
    that the Petitioner did not knowingly and voluntarily waive his right to argue that his proffer
    statement was inadmissible pursuant to Rule 410, Tennessee Rules of Evidence. Given that
    the Rule prohibited the State’s use of the statement, counsel’s failure to make that argument
    at the motion to suppress hearing constituted deficient performance. Moreover, as we
    explained above, the Petitioner was prejudiced by counsel’s failure to have the statement
    excluded from evidence.
    D. Failure to Challenge Proffer Statement Under Miranda
    The State claims in its appellate brief that the post-conviction court erred by
    determining that counsel were ineffective for failing to challenge the admissibility of the
    proffer statement pursuant to Miranda v. Arizona, 
    384 U.S. 436
     (1966), because the
    Petitioner raised the issue in a pretrial motion to suppress and the trial court rejected the
    argument. Thus, the issue was previously determined. The Petitioner contends that the post-
    conviction court, by written order,7 prohibited the State from raising that affirmative defense
    due to “the State’s repeated flouting of [post-conviction relief] rules,” and that the State
    cannot raise the issue for the first time on appeal. The Petitioner also contends that the post-
    conviction court properly granted his petition for post-conviction relief because he did not
    receive Miranda warnings prior to his custodial interrogations in October 1995. The State,
    apparently conceding that it has waived the “previously determined” defense pursuant to
    Rule 36(a), Tennessee Rules of Appellate Procedure, replies that the Petitioner cannot show
    he received the ineffective assistance of counsel because he was advised of his Miranda
    rights before he gave his October 1995 statements and had counsel present. We conclude
    that the post-conviction court erred by concluding that counsel rendered deficient
    performance for failing to challenge the admissibility of the proffer statement under Miranda.
    7
    According to the order, filed on November 30, 2009, the post-conviction court barred the State
    from further asserting the affirmative defenses of waiver and previous determination. The court filed the
    order to “impose appropriate sanctions” pursuant to Tennessee Supreme Court Rule 28, section 5(I),
    because the State had failed to assert the affirmative defenses in a separate motion to dismiss as required
    by Tennessee Supreme Court Rule 28, section 5(G).
    -47-
    In his post-conviction petition, the Petitioner claimed, in relevant part, that he gave
    his proffer statement in violation of Miranda because his statement was “the product of an
    inherently coercive interrogation that lasted three days.” The post-conviction court agreed
    with the Petitioner, concluding that his proffer statement was involuntary because he did not
    receive Miranda warnings prior to his October 1995 interviews. The court determined that
    although the Petitioner was not under arrest when he entered the proffer agreement, he was
    “in custody” for Miranda purposes under the totality of the circumstances. Specifically, the
    court determined that the Petitioner was “in custody” due to the number of prosecutors and
    police officers present for his interviews; the intensity of their demeanor; their challenging
    the Petitioner’s statements and asking him for additional information; the absence of pretrial
    counsel during portions of the interviews on October 19 and 20; the Petitioner’s requesting
    several times that authorities stop questioning him; and the fact that the interviews lasted
    several hours each day with the parties taking few breaks.
    Generally, the Fifth Amendment to the United States Constitution and article I, section
    9 of the Tennessee Constitution provide a privilege against self-incrimination to those
    accused of criminal activity, making an inquiry into the voluntariness of a confession
    necessary. See State v. Callahan, 
    979 S.W.2d 577
    , 581 (Tenn. 1998). As our supreme court
    has explained:
    In Miranda v. Arizona, 
    384 U.S. 436
    , 444, 
    86 S. Ct. 1602
    , 1612
    (1966), the United States Supreme Court held that “the
    prosecution may not use statements, whether exculpatory or
    inculpatory, stemming from custodial interrogation of the
    defendant unless it demonstrates the use of procedural
    safeguards effective to secure the privilege against
    self-incrimination.” The procedural safeguards must include
    warnings prior to any custodial questioning that an accused has
    the right to remain silent, that any statement he makes may be
    used against him, and that he has the right to an attorney.
    State v. Blackstock, 
    19 S.W.3d 200
    , 207 (Tenn. 2000). Miranda warnings are necessary only
    in situations involving custodial interrogation or its functional equivalent. See, e.g., Rhode
    Island v. Innis, 
    446 U.S. 291
    , 300-01 (1980); State v. Dailey, 
    273 S.W.3d 94
    , 102-03 (Tenn.
    2009). In determining whether a suspect is in custody for Miranda purposes, we must
    consider “whether, under the totality of the circumstances, a reasonable person in the
    suspect’s position would consider himself or herself deprived of freedom of movement to a
    degree associated with a formal arrest.” State v. Anderson, 
    937 S.W.2d 851
    , 855 (Tenn.
    1996). The analysis is very fact-specific. Certain factors are relevant to our inquiry,
    including but not limited to the following:
    -48-
    the time and location of the interrogation; the duration and
    character of the questioning; the officer’s tone of voice and
    general demeanor; the suspect’s method of transportation to the
    place of questioning; the number of police officers present; any
    limitation on movement or other form of restraint imposed on
    the suspect during the interrogation; any interactions between
    the officer and the suspect, including the words spoken by the
    officer to the suspect, and the suspect’s verbal or nonverbal
    responses; the extent to which the suspect is confronted with the
    law enforcement officer’s suspicions of guilt or evidence of
    guilt; and finally, the extent to which the suspect is made aware
    that he or she is free to refrain from answering questions or to
    end the interview at will.
    Id. The question of whether a person is “in custody” for Miranda purposes is objective and
    does not depend upon the officer’s subjective intention or the suspect’s subjective perception.
    State v. Crutcher, 
    989 S.W.2d 295
    , 304 (Tenn. 1999).
    The testimony at the evidentiary hearing reflects that although the Petitioner
    transported himself to the district attorney’s office, he had to go to the office when
    summoned as a condition of his bond. The Petitioner did not receive Miranda warnings prior
    to his October 1995 interviews,8 numerous prosecutors and officers were present during his
    interviews, and the interviews were lengthy and intense. Moreover, the post-conviction court
    obviously accredited the Petitioner’s testimony that the prosecutors and officers continued
    to question him even though he asked for the questioning to stop and that he did not feel free
    to leave. However, the Petitioner never testified that the authorities accused him of the
    crimes, told him that he had to answer their questions, or told him that he could not leave the
    district attorney’s office. To the contrary, after the Petitioner’s October 19 interview, he was
    allowed to leave the office and spent the night in a hotel. The next day, he returned for more
    questioning, gave his proffer statement, and was allowed to leave the office and return to
    Kentucky. The proffer agreement specified that the Petitioner was to remain on bond, and
    he remained free on bond until he returned to the district attorney’s office on November 7.
    8
    As noted by the post-conviction court, Lanny Wilder testified that the Petitioner signed a waiver
    of rights form prior to his polygraph examination on October 20, 1995. The post-conviction court
    concluded that the waiver “was limited to the unique context of the examination and was not effective
    within the context of the questioning which the Petitioner faced once the examination ended. Thus, . . .
    the pre-polygraph Miranda waiver did not render the proffer statement voluntary.” In any event, the
    Petitioner’s October 19, 1995 statement to authorities was essentially the same as, and resulted in, his
    October 20, 1995 proffer statement. The evidence at the evidentiary hearing established that the
    Petitioner did not receive Miranda warnings prior to giving his statement on October 19.
    -49-
    He was arrested that day when he tried to leave the district attorney’s office. Therefore, we
    disagree with the post-conviction court’s conclusion that the Petitioner was “in custody”
    when he gave his proffer statement. Because he was not in custody when he gave the
    statement, Miranda warnings were not required.
    We also conclude that the Petitioner’s proffer statement was not the “fruit” of his
    March 21, 1994 statement. At the time of the March 21 statement, the Petitioner was in jail
    for the Grandpa’s charge. However, the Petitioner’s being in custody on another charge does
    not automatically trigger the “in custody” portion of the Miranda requirement. State v. Goss,
    
    995 S.W.2d 617
    , 628 (Tenn. Crim. App. 1998).
    [A]n inmate is not in custody for Miranda purposes unless there
    is an added imposition on the inmate’s freedom of movement.
    Relevant to this determination is (1) the language used to
    summon the inmate, (2) the physical surroundings of the
    interrogation, (3) the extent to which he is confronted with
    evidence of his guilt, and (4) the additional pressure exerted to
    detain the inmate. We agree that this standard is best suited to
    determine whether Miranda warnings must precede questioning
    in a prison setting, given the fact that a prisoner would always
    believe that he was not free to leave the prison.
    Id. Even if the Petitioner did not receive Miranda warnings prior to his March 21, 1994
    statement, the Petitioner volunteered his information to the authorities. He was not
    confronted with evidence of his guilt during the interview, and nothing indicates that
    additional pressure was exerted to detain him. Therefore, he was not in custody for Miranda
    purposes when he gave his March 21 statement. As a result, trial counsel were not
    ineffective for failing to challenge the admissibility of the proffer statement pursuant to
    Miranda.
    E. Use of Investigators from Matthews’s Case
    Finally, the State contends that the post-conviction court erred by concluding that the
    Petitioner received the ineffective assistance of counsel because trial counsel retained the
    services of Mathews’s former investigators. The State argues that trial counsel recognized
    the conflict of interest, decided to waive the conflict, and acted reasonably because the
    investigators were qualified, experienced, and already familiar with the crimes. The State
    also contends that even if counsels’ hiring the investigators constituted deficient
    performance, the Petitioner cannot establish prejudice because different investigators would
    not have had access to Mathews’s statements. The Petitioner contends that the post-
    -50-
    conviction court’s ruling was correct. We agree with the State that the Petitioner cannot
    establish prejudice.
    In its order granting post-conviction relief, the post-conviction court determined that
    a conflict of interest existed for the investigators who worked on both cases because the
    investigators were unable to reveal “vital information” to the Petitioner, specifically that
    Mathews’s had told them he acted alone in the crimes. The court also determined that trial
    counsel knew or should have known about the investigators’ “limitations.” Without
    addressing prejudice, the court concluded that trial counsel’s retaining the investigators
    resulted in the Petitioner’s receiving the ineffective assistance of counsel.
    Co-counsel and lead counsel testified that they did not think a conflict of interest
    existed for investigators working on both cases. Ron Lax, the owner of Inquisitor, Inc.,
    testified that he was concerned about a conflict initially but that Mathews’s attorneys told
    him a conflict would not exist if the investigators did not reveal to co-counsel and lead
    counsel any information they received from Mathews. However, Lax acknowledged that
    investigators were obligated to keep clients’ information confidential, that they were
    obligated to share information with clients, and that his company owed a duty of loyalty to
    both Mathews and the Petitioner. Therefore, we agree with the post-conviction court that a
    conflict of interest existed for the Petitioner’s investigators, who learned exculpatory, yet
    privileged, information from Mathews that they could not share with the Petitioner.
    Nevertheless, we agree with the State’s argument that the Petitioner cannot show prejudice.
    Had trial counsel for the Petitioner retained the services of different investigators, nothing
    indicates that those investigators would have had access to the privileged information
    Mathews gave to his investigators or attorneys. Therefore, the post-conviction court erred
    by determining that the Petitioner received the ineffective assistance of counsel for trial
    counsel’s retaining the services of Mathews’s investigators.
    In sum, we conclude that the post-conviction court erred by granting relief to the
    Petitioner on the grounds that his trial counsel were ineffective for failing to challenge the
    admissibility of the proffer statement pursuant to Miranda and for retaining investigators who
    had worked on Mathews’s case. However, we affirm the court’s granting post-conviction
    relief on the basis that the Petitioner received the ineffective assistance of counsel for trial
    counsel’s (1) failing to challenge the State’s declaration of a material breach; (2) failing to
    challenge the State’s unilateral power to declare a breach; and (3) failing to challenge the
    admissibility of the proffer statement pursuant to Rule 410, Tennessee Rules of Evidence.
    IV. Error Coram Nobis Analysis
    The State also challenges the post-conviction court’s granting the Petitioner’s petition
    -51-
    for writ of error coram nobis. The State argues that the petition was barred by the one-year
    statute of limitations and that due process did not toll the statute of limitations. The
    Petitioner contends that the post-conviction court properly granted his petition for writ of
    error coram nobis. We conclude that the post-conviction court erred by granting the petition.
    The Petitioner filed his “Amended Petition for Post-Conviction Relief and,
    Alternatively, Motion for Writ of Error Coram Nobis” on January 30, 2009. In the petition
    for writ of error coram nobis, the Petitioner alleged actual innocence based on newly
    discovered evidence. Specifically, the Petitioner argued that the newly discovered evidence
    was testimony Mathews now could be compelled to give about the crimes. The State filed
    a motion to dismiss the petition for writ of error coram nobis on the basis that the Petitioner
    filed it outside the one-year statute of limitations. The Petitioner responded that the newly
    discovered evidence did not become available until Mathews’s convictions became final on
    September 6, 2008, and, therefore, that the one-year statute of limitations should be tolled.
    In a written order filed on November 30, 2009, the post-conviction court denied the
    State’s motion to dismiss the petition for writ of error coram nobis, concluding that due
    process required tolling the one-year statute of limitations. In its order, the post-conviction
    court noted that Mathews had been called to testify at the Petitioner’s 1997 trial but that
    Mathews had asserted his Fifth Amendment privilege against compulsory self-incrimination
    under the United State and Tennessee Constitutions.9 The court concluded that because
    Mathews’s convictions became final on September 6, 2008, and no further criminal
    proceedings were pending against him, he was no longer entitled to assert the privilege.
    Therefore, Mathews’s testimony, which was previously unavailable, was now available, and
    the Petitioner should be given an opportunity to establish his claim of actual innocence based
    on Mathews’s testimony.
    The Petitioner did not attach to his petition an affidavit from Mathews asserting the
    Petitioner’s innocence. Moreover, the Petitioner did not call Mathews as a witness at the
    evidentiary hearing.10 According to the post-conviction court’s order granting coram nobis
    relief, the Petitioner argued at the conclusion of the hearing that the testimony of Skip Gant
    and Inquisitor’s employees constituted the newly discovered evidence because the witnesses
    had testified that Mathews claimed he acted alone in the crimes. The post-conviction court
    9
    According to the trial transcript, the Petitioner called Mathews to testify at trial. Mathews’s
    trial attorney, Jim Simmons, announced in the jury’s presence that he had spoken with Mathews and that
    Mathews wanted to invoke his Fifth Amendment right against compulsory self-incrimination.
    10
    During the hearing, counsel for the Petitioner advised the post-conviction court that the
    Petitioner had subpoenaed Mathews but that “we made a determination not to call him and we released
    the subpoena.”
    -52-
    agreed with the Petitioner.
    Tennessee Code Annotated section 40-26-105(a) and (b) provide as follows:
    There is hereby made available to convicted defendants in
    criminal cases a proceeding in the nature of a writ of error
    coram nobis, to be governed by the same rules and procedure
    applicable to the writ of error coram nobis in civil cases, except
    insofar as inconsistent herewith. . . . 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.
    Generally, a decision whether to grant a writ of error coram nobis rests within the sound
    discretion of the trial court. See State v. Hart, 
    911 S.W.2d 371
    , 375 (Tenn. Crim. App.
    1995).
    A writ of error coram nobis must be filed within one year after the judgment becomes
    final in the trial court. Tenn. Code Ann. § 27-7-103. However, the one-year statute of
    limitations may be tolled on due process grounds if a petition seeks relief based upon newly
    discovered evidence of actual innocence. Wilson v. State, 
    367 S.W.3d 229
    , 234 (Tenn.
    2012). Our supreme court has stated, “In determining whether tolling of the statute is proper,
    the court is required to balance the petitioner’s interest in having a hearing with the interest
    of the State in preventing a claim that is stale and groundless.” Id. In general, “‘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.’” Id. (quoting Burford v. State, 
    845 S.W.2d 204
    , 208 (Tenn. 1992)). Our supreme court described the three steps of the “Burford rule”
    as follows:
    “(1) determine when the limitations period would normally have
    begun to run; (2) determine whether the grounds 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.”
    -53-
    Id. (quoting Sands v. State, 
    903 S.W.2d 297
    , 301 (Tenn. 1995)). “Whether due process
    considerations require tolling of a statute of limitations is a mixed question of law and fact,
    which we review de novo with no presumption of correctness.” State v. Harris, 
    301 S.W.3d 141
    , 145 (Tenn. 2010).
    Applying the first step of the Burford rule, the limitations period normally would have
    begun to run on March 7, 2002, thirty days after the trial court denied the Petitioner’s motion
    for a new trial on February 5, 2002. See id. at 144 (Tenn. 2010) (stating that 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”). Therefore, the statute of limitations
    would have expired on March 8, 2003, almost six years before the Petitioner filed his petition
    for writ of error coram nobis.
    For the second step in the analysis, we are required to determine whether the
    Petitioner’s ground for relief actually arose after the limitations period normally would have
    commenced. The Petitioner contends that the newly discovered evidence did not become
    available until September 6, 2008, “the date on which Mathews exhausted his direct appeals
    and his conviction for the Taco Bell murders became final.” The Petitioner argues that, at
    that point, critical evidence from previously unavailable sources became available.
    In support of his claim, the Petitioner cites Taylor v. State, 
    171 S.W.2d 403
     (Tenn.
    1943). In Taylor, the defendant argued that he was entitled to a new trial based upon newly
    discovered evidence in the form of two witnesses who had been unavailable to testify at trial.
    Id. at 404. One of the witnesses had been in the hospital, and the other had been working out
    of state. Id. Although the witnesses had refused to give a statement prior to the defendant’s
    trial, both later agreed to testify in the event the defendant was granted a new trial. Id. Our
    supreme court explained,
    It is possible that the trial Judge took the view that the evidence
    was not newly discovered, since defendant and counsel knew of
    it during and before the trial. But, although not newly
    discovered evidence, in the usual sense of the term, it’s
    availability is newly discovered, to which the same principle
    applies.
    Id. at 405; see also Harris, 301 S.W.3d at 160-61 (Koch, J., concurring) (citing Taylor for the
    “narrow exception” to the rule that the newly discovered evidence must have been unknown
    to the defendant at the time of trial”). The Petitioner also cites to numerous cases outside of
    this jurisdiction which have held that testimony from a witness, who previously refused to
    -54-
    testify by asserting the constitutional privilege against self-incrimination, is considered newly
    discovered evidence. See United States v. Guillette, 
    404 F. Supp. 1360
    , 1372-74 (D. Conn.
    1975); 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) (citing
    Taylor, 171 S.W.2d at 405).
    Under Taylor, we conclude that the newly discovered evidence alleged by the
    Petitioner in his petition for writ of error coram nobis did not become available until after the
    limitations period normally would have commenced. Moving to the third step of the Burford
    rule, the Petitioner filed his petition for writ of error coram nobis in January 2009, just four
    months after the alleged newly discovered evidence became available. Thus, we conclude
    that the post-conviction court did not err by determining that due process tolled the statute
    of limitations.
    Next, we will address whether the newly discovered evidence alleged by the Petitioner
    was sufficient to support the petition for writ of error coram nobis. The writ of error coram
    nobis is a post-conviction mechanism that has a long history in the common law and the State
    of Tennessee. See, e.g., State v. Vasques, 
    221 S.W.3d 514
    , 524-26 (Tenn. 2007). The writ
    “is an extraordinary procedural remedy . . . [that] fills only a slight gap into which few cases
    fall.” State v. Mixon, 
    983 S.W.2d 661
    , 672 (Tenn. 1999). By its terms, the statute is
    “confined” to cases in which errors exist outside the record and to matters that were not
    previously litigated. Tenn. Code Ann. § 40-26-105(b).
    Our supreme court has stated that when examining a petition for writ of error coram
    nobis, a trial court is to
    first consider the newly discovered evidence and be “reasonably
    well satisfied” with its veracity. If the defendant is “without
    fault” in the sense that the exercise of reasonable diligence
    would not have led to a timely discovery of the new information,
    the trial judge must then consider both the evidence at trial and
    that offered at the coram nobis proceeding in order to determine
    whether the new evidence may have led to a different result.
    Vasques, 221 S.W.3d at 527. In determining whether the new information may have led to
    a different result, the question before the court is “‘whether a reasonable basis exists for
    concluding that had the evidence been presented at trial, the result of the proceeding might
    have been different.’”            Id. (quoting State v. Roberto Vasques, No.
    M2004-00166-CCA-R3-CD, 2005 Tenn. Crim. App. LEXIS 1100, at **36-37 (Nashville,
    Oct. 7, 2005)). “A court abuses its discretion when it applies an incorrect legal standard or
    -55-
    its decision is illogical or unreasonable, is based on a clearly erroneous assessment of the
    evidence, or utilizes reasoning that results in an injustice to the complaining party.” Wilson
    v. State, 
    367 S.W.3d 229
    , 235 (Tenn. 2012).
    Turning to this case, the Petitioner has no guarantee that Mathews would testify for
    him at a second trial. To the contrary, Mathews refused to sign an affidavit exonerating the
    Petitioner before the Petitioner’s first trial, refused to testify for the Petitioner at the trial, and
    did not testify for him at the post-conviction evidentiary hearing.11 Likewise, nothing
    guarantees that Skip Gant or the Inquisitor employees would be willing or able to testify
    about statements Mathews made to them. The statements were privileged, and Mathews has
    given no indication that he would waive that privilege. In fact, Mathews’s attorney informed
    the post-conviction court during the evidentiary hearing that Mathews refused to waive any
    privilege. Furthermore, counsel for Gant and Lax objected to their having to testify about
    privileged statements Mathews made to them, but the post-conviction court overruled the
    objections. We note that in its order granting writ of error coram nobis relief, the post-
    conviction court stated that “it is reasonable to assume that the trial court would have upheld
    any assertion by Mr. Lax or other Inquisitor employees that, based upon the attorney-client
    privilege, Inquisitor employees were prevented from divulging the contents of any
    conversation between Mr. Mathews and Inquisitor employees.” In short, because nothing
    demonstrates that the witnesses would be any more available at a second trial than they were
    at the first trial, we conclude that the post-conviction court abused its discretion by granting
    the petition for writ of error coram nobis.
    V. Conclusion
    Based upon the oral arguments, the record, and the parties’ briefs, we affirm the post-
    conviction court’s granting the petition for post-conviction relief. Although the post-
    conviction court erred by granting relief on the grounds that the Petitioner’s trial counsel
    were ineffective for failing to challenge the admissibility of the proffer statement pursuant
    to Miranda and for retaining investigators who had worked on Mathews’s case, the court
    correctly determined that the Petitioner received the ineffective assistance of counsel for trial
    counsel’s (1) failing to challenge the State’s declaration of a material breach; (2) failing to
    challenge the State’s unilateral power to declare a breach; and (3) failing to challenge the
    admissibility of the proffer statement pursuant to Rule 410, Tennessee Rules of Evidence.
    Regarding the petition for writ of error coram nobis, we again conclude that the post-
    conviction court erred by granting relief. Nevertheless, because the Petitioner has shown that
    he is entitled to post-conviction relief based upon his receiving the ineffective assistance of
    11
    We note that during the hearing, counsel for the Petitioner advised the post-conviction court
    that Mathews had signed an affidavit stating that he would never testify “before this Court.”
    -56-
    counsel at trial, the case is remanded to the trial court for further proceedings consistent with
    this opinion.
    _________________________________
    NORMA McGEE OGLE, JUDGE
    -57-