IN THE COURT OF CRIMINAL APPEALS OF TENNESSEE

AT KNOXVILLE

Assigned on Briefs October 25, 2016

STATE OF TENNESSEE v. MARIO CRUZ ESTRADA

Appeal from the Circuit Court for Lawrence County

No. 32502 Stella L. Hargrove, Judge

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No. M2016-00056-CCA-R3-CD – Filed November 30, 2016

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The defendant, Mario Cruz Estrada, was convicted of attempted second degree murder 

for which he received a sentence of twelve years in confinement. The defendant appeals 

his conviction challenging the trial court’s denial of his request for a jury instruction on 

the defenses of self-defense and defense of another and the admission of certain evidence.

Upon review, we affirm the judgments of the trial court.

Tenn. R. App. P. 3 Appeal as of Right; Judgment of the Circuit Court Affirmed.

J. ROSS DYER, J., delivered the opinion of the court, in which JAMES CURWOOD WITT, JR.

and ROBERT L. HOLLOWAY, JR., JJ., joined.

William M. Harris, Lawrenceburg, Tennessee, for the appellant, Mario Estrada.

Herbert H. Slatery III, Attorney General and Reporter; Leslie E. Price, Assistant Attorney 

General; Brent A. Cooper, District Attorney General; and Gary Howell, Assistant District 

Attorney General, for the appellee, State of Tennessee.

OPINION

Facts

On January 1, 2014, the victim, Charles Davis, and his wife, Tasha Davis, lived 

with their four children on Rabbit Trail Road in Lawrence County, Tennessee. Mr. and 

Mrs. Davis additionally cared for the four year-old and infant daughters of Ms. Davis’s 
2

sister, Crystal Carranza. Ms. Carranza was about to begin a one-year incarceration and 

could not care for her children herself.

That day, Ms. Carranza’s four year-old daughter spent the day with her 

grandmother. After the visit, Ms. Carranza and the defendant, Ms. Carranza’s new 

boyfriend, brought the child back to the Davis’s home. The victim was leaving to visit 

his mother at the time and noticed the defendant driving with a forty-ounce beer in his 

hand. Despite his disgust, the victim continued leaving and went to his mother’s house. 

According to Mrs. Davis, when Ms. Carranza and the defendant arrived, Ms. Carranza 

was “high” and the defendant was holding two forty-ounce beers. 

When the victim returned, he found the defendant and Ms. Carranza still at his 

house. The defendant was sitting on the arm rest of the couch, Ms. Carranza was on the 

floor beside him, Ms. Davis was in the kitchen, and the kids were “everywhere.” As the 

victim settled into his chair, the defendant told him “I’m teaching your kids to fight.” 

The victim responded by telling the defendant that he did not appreciate that. When the 

defendant apologized for being disrespectful, the victim stated, “Well it’s very 

disrespectful to be pulling up in my drive way with my niece in the car drinking and 

driving. I don’t appreciate that at all.” The defendant did not respond and simply 
3

lowered his head. However, the victim continued, “Look I just want you all out of my 

house. I’m going to the back here into the bathroom and y’all need to leave. And you’re 

not taking the kids with you.” 

As the victim walked towards the bathroom, Ms. Carranza yelled, “Which would 

you rather do, him drink and drive or me drive without my glasses.” The victim

responded “Neither one.” Ms. Carranza then followed the victim into the bathroom, 

shoved him in the back, and asked “What are you going to do.” The victim turned to face 

Ms. Carranza, and she began hitting him with both fists. In an attempt to both protect 

himself and calm her down, the victim grabbed both of Ms. Carranza’s fists, crossed her 

arms across her chest, and laid her on the ground. According to the victim, Ms. Carranza 

stopped talking and fighting with him at that point.

While kneeling over Ms. Carranza, the victim felt something “like slapping on my 

neck.” He looked up to see the defendant standing behind him and a knife blade coming 

towards him. In an attempt to protect himself, the victim picked the defendant up on his 

shoulders, running him into the wall, and carried him into the bedroom. As the two 

continued to struggle, the victim called out for help and the defendant continued to stab 
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him. Once the victim was able to grab and control the defendant’s hand, the defendant 

stopped. The next thing the victim remembers was waking up in Vanderbilt Hospital.

The defendant and Ms. Carranza fled the house in a maroon minivan. Ms. Davis 

followed them and found a neighbor to call 911. Ms. Davis then returned to the house to 

care for her husband. The victim was unresponsive when Ms. Davis first returned to the 

house. Though she was able to revive him, all the victim could say was that he was cold.

Investigator Blake Mayes, with the Lawrence County Sheriff’s Department, 

arrived at the scene first. Inv. Mayes found the victim lying on the floor in the bedroom 

covered in blood. Ms. Davis told Inv. Mayes that the victim had been attacked by the 

defendant, and the defendant and Ms. Carranza fled in a maroon minivan. Inv. Mayes

issued a “be on the lookout” (“BOLO”) notice for the defendant and the van. 

After leaving the scene, Inv. Mayes received a call from the Maury County 

Sheriff’s Department. Inv. Mayes learned the defendant and Ms. Carranza had been 

apprehended and their bloody clothes had been collected.
5

Deputy Chris Webster, with the Maury County Sheriff’s Department, was on 

patrol when he received a BOLO for a maroon van leaving Lawrence County on 

Highway 43 and occupied by the defendant. The BOLO also advised that the defendant 

might be headed to a residence on Williamsport Pike. Shortly after receiving the 

information about the defendant, Deputy Webster heard other officers on the radio stating 

that they had spotted the vehicle and were in pursuit. Based on the direction of the 

pursuit and the fact that he was located between the pursuing officers and the residence 

on Williamsport Pike, Deputy Webster took a position at the Williamsport Pike exit of 

Highway 43 in an attempt to stop the defendant.

As the fleeing defendant and the pursing officers approached Deputy Webster’s 

position, the mini-van refused to stop and instead accelerated, crashing into the side of 

Deputy Webster’s vehicle and pushing it out of the way. After the other officers passed 

his location, Deputy Webster joined the pursuit.
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The fleeing mini-van finally turned into a subdivision and came to a stop. The 

defendant immediately exited the vehicle and began to flee on foot. Deputy Webster also 

exited his vehicle and pursued the defendant. When the defendant slipped on wet grass,

another officer deployed his Taser, and the defendant was taken into custody. According 

to Deputy Webster, the defendant’s clothing was covered in blood. Deputy Webster also 

testified that he took pictures of the defendant and his bloody clothing at the scene.

Maury County Sheriff’s Deputy Chris McDougal arrived on the scene just as the 

defendant was exiting the vehicle and fleeing on foot. After the defendant was 

apprehended, he was placed in Deputy McDougal’s vehicle and transported to the Maury 

County Jail. According to Deputy McDougal’s log, he left the scene at 10:48 p.m. and 

arrived at the Maury County Jail at 10:54 p.m. Upon arriving at the jail, Deputy 

McDougal immediately “took the defendant straight to booking.” 

About an hour later, Deputy McDougal was tasked with delivering the defendant’s 

clothing to the Lawrence County Sheriff’s Department. According to Deputy McDougal, 

he received a brown paper Piggly Wiggly grocery bag from the booking officer and 
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immediately drove to meet Inv. Mayes of the Lawrence County Sheriff’s Department. 

According to Deputy McDougal’s log, he was in route to meet Inv. Mayes and deliver the 

clothing at 11:56 p.m. Inv. Mayes corroborated Deputy McDougal’s testimony stating 

that he received the clothing in a brown paper Piggly Wiggly grocery bag and 

immediately placed it in the temporary evidence locker.

Dr. Laura Boos, an expert in the field of DNA analysis and an employee of the 

Tennessee Bureau of Investigation, compared blood samples of the victim to blood stains 

found in the minivan and on the defendant’s clothing. All items tested by Dr. Boos were 

positive for blood and contained the DNA profile matching that of the victim.

Analysis

I. Jury Instruction – Self-Defense and Defense of Another
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The defendant contends that the trial court erred by not instructing the jury 

concerning the defenses of self-defense and defense of another.

1

 He argues that he had a 

reasonable belief that Ms. Carranza was in imminent danger of serious bodily injury. The 

State argues that the defense was not fairly raised by the poof and, therefore, the trial 

court correctly denied the defendant’s request. Upon review, we agree with the State and 

affirm the decision of the trial court.

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The defense of self-defense is expressly provided for in Tennessee 

by statute and is defined, in relevant part, as follows:

(a) A person is justified in threatening or using force against another person 

when and to the degree the person reasonably believes the force is 

immediately necessary to protect against the other’s use or attempted use of 

unlawful force. The person must have a reasonable belief that 

there is an imminent danger of death or serious bodily injury. The danger 

 

1

In his brief, the defendant also claims that the trial court should have instructed the jury 

on self-defense. However, the defendant fails to present an argument in support of his claim.
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creating the belief of imminent death or serious bodily injury must be real, 

or honestly believed to be real at the time, and must be founded upon 

reasonable grounds. There is no duty to retreat before a person threatens or 

uses force.

Tenn. Code Ann. § 39-11-611(a) (2003). Tennessee Code likewise provides for the 

defense of defense of another:

A person is justified in threatening or using force against another to protect 

a third person, if:

(1) Under the circumstances as the person reasonably believes them to be, 

the person would be justified under § 39-11-611 in threatening or using 

force to protect against the use or attempted use of unlawful force 

reasonably believed to be threatening the third person sought to be 

protected; and

(2) The person reasonably believes that the intervention is immediately 

necessary to protect the third person.
10

Tenn. Code Ann. § 39-11-612 (2003).

A trial court has the duty to “give a complete charge of the law applicable to the 

facts of the case.” State v. Harbison, 704 S.W.2d 314, 319 (Tenn. 1986). This duty 

includes “giving jury instructions concerning fundamental issues to the defense and 

essential to a fair trial . . . .” State v. Anderson, 958 S.W.2d 9, 17 (Tenn. Crim. App.

1998). See also Myers v. State, 185 Tenn. 264, 206 S.W.2d 30, 32 (Tenn. 1947) (holding 

that a defendant is entitled to an affirmative instruction on self-defense if raised by the 

evidence). In deciding whether a defense instruction is warranted, the trial court “must 

examine the evidence in the light most favorable to the defendant to determine whether 

there is evidence that reasonable minds could accept as to that defense.” State v. Sims, 45 

S.W.3d 1, 9 (Tenn. 2001).

The defendant correctly asserts that, when evidence adequately supporting selfdefense is admitted at trial, the question of whether an individual acted in self-defense is 

a factual question for the jury. See State v. Ivy, 868 S.W.2d 724, 728 (Tenn. Crim. App.

1993). However, before a trial court may submit a defense question to a jury, the proof 
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must fairly raise an issue as to the existence of that defense. Tenn. Code Ann. § 39-11-

203(c) (2006). The defendant has the burden of introducing this proof. Tenn. Code Ann. 

§ 39-11-203(c), Sentencing Commission Comments. Thus, this Court may find error 

only if a jury charge “fails to fairly submit the legal issues or misleads the jury as to the 

applicable law.” State v. Phipps, 883 S.W.2d 138, 142 (Tenn. Crim. App. 1994).

In this case, the trial court declined to instruct the jury on self-defense and defense 

of another because the evidence did not suggest the defendant had a reasonable or real 

fear that he victim would hurt anyone. The trial court concluded that the record was void 

of any proof to support a conclusion that the defendant had a real or honest belief that 

Ms. Carranza was in imminent danger of death or serious bodily injury. Therefore, the 

trial court found that the defendant failed to present evidence that fairly raised an issue as 

to whether the defendant acted in defense of either self or others when he attacked the 

unarmed victim and stabbed him repeatedly.

We conclude, as did the trial court, that, without evidence either that the victim 

acted in a manner causing the defendant to believe that the victim presented an 
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“imminent danger of death or serious bodily injury,” the record contains no 

evidence that the defendant’s force was “immediately necessary to protect against” the 

victim. Tenn. Code Ann. § 39-11-611(a). Thus, there is no basis for this Court to 

conclude that the evidence fairly raised an issue as to whether the defendant acted in 

defense of either self or another. Accordingly, we conclude the trial court’s refusal to 

instruct the jury on self-defense and defense of person(s) was not error.

II. Chain of Custody

The defendant contends that the State failed to adequately establish the chain of 

custody concerning the bloody clothing that was collected and processed in the instant 

matter and, therefore, the trial court erred in allowing the admission of the clothing and 

the subsequent DNA analysis. The State argues that that the record sufficiently linked 

the clothing to the defendant, the defendant has failed to show the trial court abused its 

discretion in allowing the admission of the clothing and the DNA results. Upon review 

of the record, we agree with the State.
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Rule 901(a) of the Tennessee Rules of Evidence requires the authentication of 

tangible evidence: “The requirement of authentication or identification as a condition 

precedent to admissibility is satisfied by evidence sufficient to the court to support a 

finding by the trier of fact that the matter in question is what its proponent claims.” If the 

proffered evidence is unique, readily identifiable, and relatively resistant to change, the 

foundation need only consist of testimony confirming its relevance. It is when the 

evidence is susceptible to alteration that the trial court requires a more stringent 

foundation, entailing a chain of custody of the item with sufficient completeness to render 

it improbable that the original item has either been exchanged with another or has been 

subjected to tampering or contamination. United States v. Cardenas, 864 F.2d 1528, 

1531 (10th Cir. 1989).

In setting up the chain of evidence, the prosecution is not required to elicit 

testimony from every custodian or every person who had an opportunity to come into 

contact with the evidence at issue. United States v. Harrington, 923 F.2d 1371 (9th Cir.

1991). Instead, the burden is on the prosecution to demonstrate that it is reasonably 

probable or reasonably certain that no tampering, alteration, or substitution has occurred.
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United States v. Ortiz, 966 F.2d 707 (1st Cir. 1992). Once the threshold of the 

admissibility has been met, any challenges to the chain of custody become considerations 

for the fact-finder. United States v. Lopez, 758 F.2d 1517 (11th Cir. 1985).

In State v. Scott, 33 S.W.3d 746 (Tenn. 2000), our Supreme Court confirmed that 

Rule 901 did not require the identity of tangible evidence admitted through a chain of 

custody to be proved beyond all possibility of doubt or otherwise exclude every 

possibility of tampering. Id. at 760. So, when the State fails to call each and every 

witness within the chain of custody or the process is otherwise defective, tangible 

evidence may nevertheless be admissible if, in the discretion of the trial judge, the 

evidence has been adequately identified and “there was no substantial alteration . . . 

which would affect its validity.” State v. Johnson, 673 S.W.2d 877, 881 (Tenn. Crim.

App. 1984). Before the admission or exclusion of the evidence offered, trial courts 

should consider its nature and all of the surrounding circumstances, “including 

presentation, custody and probability of tampering or alteration.” United States v. 

Cardenas, 864 F.2d at 1531; see Reed v. United States, 377 F.2d 891, 893 (10th Cir.

1967). If these facts and circumstances reasonably establish the identity and integrity of 
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the evidence within the discretion of the trial court, the evidence may be admitted. Id.;

Neil P. Cohen et al., Tennessee Law of Evidence, § 901.12 (3d ed.1995).

While the State did not introduce testimony from every link in the chain of 

custody, the proof presented was sufficient to establish the identity and integrity of the 

evidence. Specifically, Deputy Webster testified that he assisted in the apprehension of

the defendant and identified, at trial, the clothing worn by the defendant at the time of his 

arrest. Deputy Webster also took photographs of the defendant upon his arrest and 

identified those pictures at trial as well. Additionally, Deputy McDougal testified that he 

transported the defendant from the scene of his arrest to the Maury County Jail. Deputy 

McDougal also described the defendant’s bloody clothing. According to Deputy 

McDougal, the defendant’s bloody clothing was collected by the booking officer and then 

given to him in a brown paper Piggly Wiggly bag for transport to Lawrence County. The 

bag was folded at the top and secured with “biohazard tape.” Inv. Mayes corroborated 

Deputy McDougal’s testimony stating that he received sealed brown paper Piggly 

Wiggly bag from Deputy McDougal. Inv. Mayes then placed the evidence in the 

temporary evidence locker, and it was later transported by the evidence custodian to the 
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evidence room. Inv. Amy Moore testified that she collected the evidence from the 

evidence room and sent it to the TBI Crime Laboratory in Nashville for testing and 

analysis.

As indicated, the purpose of the chain of custody requirement is to demonstrate 

that there has been no tampering, loss, substitution, or mistake with respect to the 

evidence. Scott, 33 S.W.3d at 760; see State v. Braden, 867 S.W.2d 750, 

759 (Tenn. Crim. App. 1993). It is only when the trial court has applied an incorrect 

legal standard or reached a decision which is against logic or reasoning that the appellate 

courts may intervene under the abuse of discretion standard and exclude the evidence. 

Scott, 33 S.W.3d at 752; State v. Holbrooks, 983 S.W.2d 697, 701 (Tenn. Crim. App.

1998). When the trial court ruled that the evidence had met the threshold requirement of 

reasonable assurance, the defendant was entitled to, and did, present a vigorous crossexamination, testing the 

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propriety of the chain and the credibility and 

competence of the witnesses who supported the admission of the evidence. Thus, the

weight to be given the proof properly became a question for the jury.
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Based on the foregoing, it is clear that the trial court did not abuse its discretion in 

determining that the proof sufficiently established the identity of the clothing and that 

there was no substantial alteration to the evidence, thus preserving its integrity. 

Accordingly, we find that the defendant is not entitled to relief on this claim.

Conclusion

Based on the foregoing authorities and reasoning, we affirm the judgment of the 

trial court.

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 J. ROSS DYER, JUDGE