AFFIRMED and Opinion Filed November 14, 2018 

S 

In The 

Court of Appeals 

Fifth District of Texas at Dallas 

No. 05-18-00281-CR 

CARLOS MARIO DELAROSA, Appellant 

V. 

THE STATE OF TEXAS, Appellee 

On Appeal from the 416th Judicial District Court 

Collin County, Texas 

Trial Court Cause No. 416-80340-2011 

MEMORANDUM OPINION 

Before Justices Bridges, Francis, and Lang-Miers 

Opinion by Justice Bridges 

A jury convicted appellant Carlos Mario Delarosa of two counts of aggravated 

assault/family violence and one count of aggravated assault. He was sentenced to life in prison on 

the aggravated assault/family violence counts and twenty years’ imprisonment on the remaining 

count. Appellant appealed his convictions and we affirmed. See Delarosa v. State, No. 05-11-

00312-CR, 2013 WL 1838643, at *1 (Tex. App.—Dallas Mar. 26, 2013, no pet.) (mem. op., not 

designated for publication). 

Appellant filed a post-conviction motion for DNA testing on November 20, 2017. The 

trial court denied his motion finding identity was and is not an issue and appellant failed to 

establish by a preponderance of the evidence the he would not have been convicted if exculpatory 

results of the testing had been available. We affirm. 
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Background 

On the evening of April 24, 2009, appellant and his wife, Serena Delarosa, went out to 

enjoy an evening with her brother, Robert Enriquez, and his girlfriend, Stacy Guardado. Between 

the two couples, they had thirteen children they left at appellant’s home under the supervision of 

Serena’s oldest son, fifteen-year-old Jose Munoz. The children ranged in age from fifteen to one. 

Serena was also seven months pregnant at the time. 

 The couples went to a comedy club in Addison and began drinking. After the show, they 

went to another bar and had more drinks. Serena testified everyone was having fun and there was 

no tension or fighting. They arrived back home after midnight. Robert and Stacy went to bed, but 

appellant and Serena stayed up and had another drink. 

Jose had invited a friend over named Mikey and asked if he could spend the night. Serena 

agreed, but appellant did not want him there. Appellant and Serena often argued over whether the 

children could invite friends over and this night was no different. Serena told appellant to get his 

guns and drugs and get “out of here.” Appellant refused. Serena and the two boys went outside 

to leave. Appellant would not let them go so Serena went back inside. The boys remained outside, 

but appellant went back to the house. 

According to Jasmine, one of Serena’s daughters, appellant walked into the bedroom where 

she had been sleeping, pulled a gun from the dresser drawer, and went back to the hallway. 

Serena was walking down the hallway towards the room where Robert and Stacy were 

sleeping because she hoped Robert could get appellant to calm down. The next thing she 

remembered was hearing “a bing, really, really loud” and sliding down the floor. 
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Jose heard three loud banging sounds while outside the house and ran back inside. He saw 

Serena lying on the floor and appellant standing over her with a gun in his hand. Appellant then 

pointed the gun at Jose. Fearing for his own life, Jose ran back to the alley and hid with Mikey. 

The gunshots woke up Robert. When he sat up, he saw appellant standing in the room with 

a gun. Robert saw Serena in the hallway coughing and bleeding from the mouth. Appellant shot 

Stacy and then told Robert not to move. He said he would shoot Stacy again and kill the baby 

sleeping next to them if he moved. Appellant fired another shot and it hit Robert. At the time, 

Robert did not realize he had been shot. Instead, he held onto Stacy and pretended to be dead until 

appellant left. When Robert eventually got up, he noticed muscle weakness in his leg and then 

realized he had been shot. 

Joshua, another one of Serena’s children, looked outside and saw appellant with a gun in 

his right hand. Then appellant got into his Ford Excursion and drove away. 

Jose, who was still hiding from appellant, called 9-1-1. Jose could tell appellant slowed 

down looking for the boys but drove off when they heard police sirens. Jose and Mikey continued 

running to Mikey’s house. Jose told the 9-1-1 operator appellant shot his mother. 

Officer Bradley Hutton spotted the Excursion and began pursuit. When Officer Hutton 

activated his lights and siren, appellant accelerated. Shortly thereafter, the Excursion lost control, 

hit a light pole, and flipped onto the driver’s side. The engine compartment then burst into flames, 

and officers pulled appellant from the burning car. Appellant did not have the gun on him at that 

time, and the gun’s location was unclear. Appellant claimed he threw it out the window in the 

alley. 

The gun was later recovered from inside the car after the fire was extinguished. The grips 

had melted into the mechanism, and the gun had to be refurbished before it could be tested. 
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Despite suffering life-threatening injuries, all three victims survived. When they testified 

at trial, the jury learned they all had past issues with drugs. In fact, officers found over a kilo of 

cocaine locked in the garage during a search and other drug paraphernalia indicating drug dealing 

was occurring out of the house. Serena and Robert’s family had ties to a gang in California, and 

Robert had been in and out of prison so many times he lost count. During trial, the defense’s 

strategy was to challenge the credibility of the witnesses by focusing on their drug use, past gang 

affiliation, and incentives to lie because they wanted appellant to get life in prison. However, the 

jury also heard from the victims, who identified appellant as the shooter, and from some of the 

children who identified appellant as the man holding the gun. The jury convicted appellant of two 

counts of aggravated assault/family violence and one count of aggravated assault. 

Appellant filed a post-conviction motion for DNA testing, which the trial court denied. 

This appeal followed. 

Standard of Review and Applicable Law 

Chapter 64 of the Code of Criminal Procedure governs a convicted person’s request for 

post-conviction forensic DNA testing and contains multiple threshold requirements that must be 

met before an applicant is entitled to such testing. See TEX. CODE CRIM. PROC. ANN. arts. 64.01–

64.05. The convicted person bears the burden of satisfying all article 64.01 and 64.03 

requirements. Wilson v. State, 185 S.W.3d 481, 484 (Tex. Crim. App. 2006). 

The purpose of post-conviction DNA testing is to provide a means through which a 

convicted person may establish his innocence by excluding himself as the perpetrator of the 

offense of which he was convicted. See Blacklock v. State, 235 S.W.3d 231, 232–33 (Tex. Crim. 

App. 2007). A convicting court may order forensic DNA testing only if the statutory preconditions 

of Chapter 64 are met. See Holberg v. State, 425 S.W.3d 282, 284 (Tex. Crim. App. 2014). Several 

requirements must be met but only two requirements are relevant to this case: (1) identity was or 
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is an issue and (2) appellant established by a preponderance of the evidence that he would not have 

been convicted if exculpatory results had been obtained through DNA testing. See TEX. CODE 

CRIM. PROC. ANN. art. 64.03(a)(1)(C), (a)(2)(A). A movant has not met his burden of section 

64.03 (a)(2)(A) if exculpatory results would “merely muddy the waters.” Rivera v. State, 89 

S.W.3d 55, 59 (Tex. Crim. App. 2002). 

Generally, we review a trial court’s decision on a motion related to DNA testing under a 

bifurcated standard of review. Whitaker v. State, 160 S.W.3d 5, 8 (Tex. Crim. App. 2004). We 

afford almost total deference to the trial court’s determination of issues of historical fact and issues 

of application of law to fact that turn on credibility and demeanor of witnesses. Rivera, 89 S.W.3d 

at 59. We review de novo other issues of application-of-law-to-fact questions that do not turn on 

the credibility and demeanor of witnesses. Id. Here, because the trial court did not conduct a live 

hearing, we review the trial court’s denial of DNA testing de novo. See Smith v. State, 165 S.W.3d 

361, 363 (Tex. Crim. App. 2005). 

Discussion 

Appellant requested post-conviction DNA testing on five items: (1) swabs from three spent 

shell casings from the home; (2) a black nylon gun case found inside the top cabinet of the wet bar 

from the home; (3) unspent bullets found in the black nylon gun case; (4) a 9-mm handgun located 

in the Ford Excursion; and (5) unspent bullets from the 9-mm handgun. 

In order to be entitled to DNA testing, appellant must show that he, more likely than not, 

would not have been convicted with exculpatory results. State v. Swearingen, 424 S.W.3d 32, 38 

(Tex. Crim. App. 2014). “Exculpatory results” has been held to mean only results “excluding [the 

convicted person] as the donor of this material . . . .” Id. (quoting Blacklock, 235 S.W.3d at 232). 

We agree with the State that the absence of appellant’s DNA on any of the five categories 

of items would not serve to exculpate him of the crime. See, e.g., Rivera, 89 S.W.3d at 55, 60 
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(absence of DNA does not indicate innocence when such evidence may not have ever existed or 

could have been washed away). Further, the presence of an unknown person’s DNA would not 

establish that appellant, more likely than not, would not have been convicted by the jury. Such 

evidence, without information about how or when the DNA was deposited on the items, would 

only prove that some unknown person, at some unknown time, touched the gun, the bullets, and 

the gun case. This is not enough to warrant DNA testing under article 64.03. See, e.g., Swearingen, 

424 S.W.3d at 38 (concluding presence of another DNA donor in fingernail scrapings would not 

overcome “mountain of evidence” of appellee’s guilt because the victim having encountered 

another person would not factually exclude appellee as killer); see Fothergill v. State, No. 05-15-

00862-CR, 2016 WL 1435658, at *3 (Tex. App.—Dallas Apr. 11, 2016, pet. ref’d) (mem. op., not 

designated for publication) (“[T]he presence of a third person’s DNA at a crime scene would not 

exclude appellant as the attacker because the evidence would not show how or when that DNA 

came to be at the crime scene.”); Goodrich v. State, No. 09-14-00027-CR, 2015 WL 1247355, at 

*4 (Tex. App.—Beaumont Mar. 18, 2015, no pet.) (mem. op., not designated for publication) 

(concluding DNA testing would not determine the identity of who committed murder or exculpate 

defendant when it was unknown when prints were left on car). 

Moreover, regardless of whose DNA may have been on the gun, the bullets, or the gun 

case, other evidence at trial established appellant’s guilt, which included testimony from Jose, 

Jasmine, and Joshua. See, e.g., Whitaker, 160 S.W.3d at 9 (“Regardless of whose blood is on the 

rifle, other evidence at trial established [appellant’s] guilt, including his statement that he killed 

the victim.”). Appellant did not challenge the credibility of Jasmine and Joshua. He attempted to 

discredit Jose by pointing out discrepancies in his written report to police and his testimony at trial. 

However, the discrepancies involved lying about drinking on the night of the shooting and not 

confusion over seeing appellant with a gun. 
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To the extent appellant argues the absence of his DNA on any of the items would leave the 

State “standing on the credibility of failing memories and known gang members,” attacks on 

credibility are not valid reasons for DNA testing. See Bates v. State, 177 S.W.3d 451, 454 (Tex. 

App.—Houston [1st Dist.] 2005, pet. ref’d); see also Cloud v. State, No. 05-13-01235-CR, 2014 

WL 1413818, at *2 (Tex. App.—Dallas Mar. 26, 2014, pet. ref’d) (mem. op., not designated for 

publication) (numerous alleged fabrications or inconsistencies by complainants were not valid 

reasons for DNA testing). 

Appellant has not shown by a preponderance of the evidence that he would not have been 

convicted if exculpatory results had been obtained through DNA testing. Accordingly, based on 

the record before us, we conclude the trial court did not err by denying his motion for DNA testing. 

We overrule appellant’s second issue. We need not consider whether identity was and is an issue 

in this case. See TEX. R. APP. P. 47.1. 

Conclusion 

The trial court’s order denying DNA testing is affirmed. 

 

Do Not Publish 

TEX. R. APP. P. 47 

180281F.U05 

 

/David L. Bridges/ 

DAVID L. BRIDGES 

JUSTICE 
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S 

Court of Appeals 

Fifth District of Texas at Dallas 

JUDGMENT 

CARLOS MARIO DELAROSA, Appellant 

No. 05-18-00281-CR V. 

THE STATE OF TEXAS, Appellee 

 On Appeal from the 416th Judicial District 

Court, Collin County, Texas 

Trial Court Cause No. 416-80340-2011. 

Opinion delivered by Justice Bridges. 

Justices Francis and Lang-Miers 

participating. 

 Based on the Court’s opinion of this date, the judgment of the trial court is AFFIRMED. 

Judgment entered November 14, 2018.