TEXAS COURT OF APPEALS, THIRD DISTRICT, AT AUSTIN

NO. 03-23-00266-CV

Johnny Baker and Lacrecia Baker, Appellants 

v. 

Devante Williams; and Swift Transportation Co. of Arizona, LLC, Appellees 

FROM THE 169TH DISTRICT COURT OF BELL COUNTY

NO. 298,373-C, THE HONORABLE CARI L. STARRITT-BURNETT, JUDGE PRESIDING

M E M O R A N D U M O P I N I O N

This appeal arises out of a personal injury lawsuit brought by appellants Johnny 

Baker and Lacrecia Baker against appellees Devante Williams and Swift Transportation Co. of 

Arizona, LLC, arising out of a collision between two tractor-trailers. After the jury returned a 

verdict finding 100% liability for Baker and no liability for Williams and awarding no damages 

to Baker, the trial court entered a final take nothing judgment. Baker now appeals, arguing the 

trial court abused its discretion by failing to exclude expert testimony by the investigating

officer. For the following reasons, we affirm the final judgment. 

BACKGROUND

While driving a commercial tractor-trailer in July 2016, Johnny Baker (Baker)

struck the back of another commercial tractor-trailer, operated by Devante Williams, that was at 
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the time parked on the shoulder of the interstate.1 Trooper Juan Gutierrez of the Texas 

Department of Public Safety was the first officer on the scene of the collision. In his

post-collision report, Trooper Gutierrez concluded that Baker had improperly driven on the 

highway’s improved shoulder before colliding with Williams, that Williams’s truck was 

disabled, and that Williams’s failure to place emergency reflective triangles behind his disabled 

trailer was not a “contributing factor” to the collision. Trooper Gutierrez’s report also indicated 

that Baker may have been “fatigued or asleep,” which may have contributed to the collision.

In 2018, Baker filed suit against Williams and Swift, asserting causes of action 

premised on Williams’s alleged negligence in operating the tractor-trailer and Swift’s alleged 

negligence in training and supervising Williams. In particular, Baker later alleged in his 

amended pleadings that Williams was negligent because, among other things, Williams failed to 

timely place three bidirectional reflective triangles behind his disabled tractor-trailer as required 

under federal law.

The parties presented their cases before a jury from October 17 and 24, 2022. In 

the leadup to the trial, Baker filed a “Motion in Limine to Exclude Expert Testimony,” seeking to 

exclude Trooper Gutierrez’s testimony and portions of his collision report on the ground that 

Trooper Gutierrez did not qualify as an expert on the topics of safe operation of commercial 

vehicles and causation. The trial court considered the motion to exclude at a pre-trial hearing, 

and after hearing arguments from counsel, the trial court denied the motion and stated that 

Trooper Gutierrez’s testimony and report would not be limited.

In addition to all of the other evidence presented at trial, the jury repeatedly 

viewed a dual-camera video of the collision, which included simultaneous video feeds of both

1 Williams was driving the tractor-trailer on behalf of Swift.
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the interior of Baker’s tractor-trailer cab and the roadway in front of Baker’s vehicle. The jury 

also heard testimony from Baker, Williams, and approximately twenty-one other witnesses. 

Although Trooper Gutierrez did not provide live testimony at trial, the jury considered his 

post-collision report and portions of his deposition. At the end of trial, the jury returned a verdict 

finding Baker 100% at fault for the collision and awarded Baker zero dollars in damages. The 

trial court subsequently entered a final judgment on February 10, 2023, ordering that Baker take

nothing against Williams and Swift. Baker filed a motion for new trial, which was denied by the 

trial court. This appeal followed.

RELEVANT LAW AND STANDARD OF REVIEW 

We review the trial court’s decision to admit expert testimony for an abuse of 

discretion. Guadalupe-Blanco River Auth. v. Kraft, 77 S.W.3d 805, 807 (Tex. 2002); see also 

Fleming v. Wilson, 610 S.W.3d 18, 21 (Tex. 2020) (per curiam) (stating abuse of discretion 

applies to trial court’s decision to admit or exclude evidence). “To testify as an expert, a witness 

must be qualified, and the proposed testimony must be relevant to the issues in the case and 

based upon a reliable foundation.” Gunn v. McCoy, 554 S.W.3d 645, 666 (Tex. 2018) (citing 

Tex. R. Evid. 702). “The trial court’s role is not to determine the truth or falsity of the expert’s 

opinion’ but ‘to make the initial determination whether the expert’s opinion is relevant and 

whether the methods and research upon which it is based are reliable.” State v. Skyway Holdings 

LLC, No. 03-19-00143-CV, 2021 WL 833965, at *2 (Tex. App.—Austin Mar. 5, 2021, pet. 

denied) (mem. op.) (quoting E.I. du Pont de Nemours & Co. v. Robinson, 923 S.W.2d 549, 558 

(Tex. 1995)). The jury then assesses the weight and credibility of that testimony. See Robinson, 

923 S.W.2d at 558. “To reverse a judgment based on a claimed error in admitting or excluding 
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evidence,” we review the entire record, and “a party must show that the error probably resulted 

in an improper judgment.” Interstate Northborough P’ship v. State, 66 S.W.3d 213, 220 (Tex. 

2001); see also Tex. R. App. P. 44.1(a).

DISCUSSION

On appeal, Baker argues that the trial court abused its discretion by failing to 

exclude Trooper Gutierrez’s testimony as an expert witness and that that error was harmful. 

Assuming without deciding that Trooper Gutierrez did not qualify as an expert witness and the 

trial court erred by failing to exclude his testimony, Baker has failed to demonstrate that allowing 

the jury to hear the testimony was harmful.

The Texas Supreme Court has “recognized the impossibility of establishing a 

specific test for determining harmful error,” instead “entrust[ing] the matter to the sound 

discretion of the reviewing court.” Caffe Ribs, Inc. v. State, 487 S.W.3d 137, 145 (Tex. 2016). 

Even when an evidentiary ruling is erroneous, the reviewing court may only reverse if the error 

“probably caused the rendition of an improper judgment.” Tex. R. App. P. 44.1(a)(1). “Probable 

error is not subject to precise measurement, but it is something less than certitude.” El Paso 

Indep. Sch. Dist. v. Portillo, 661 S.W.3d 512, 539 (Tex. App.—El Paso 2023, pet. denied)

(quoting TXI Transp. Co. v. Hughes, 306 S.W.3d 230, 242–43 (Tex. 2010)). Whether the error 

was harmful is a matter of judgment based on an evaluation of the whole case, including all of 

the evidence before the factfinder, the strengths and weaknesses of the case, and the ultimate 

verdict. See Reliance Steel & Aluminum Co. v. Sevcik, 267 S.W.3d 867, 871 (Tex. 2008). When 

considering the “role the evidence played in the context of the trial,” erroneously admitted 

evidence is harmful if it was crucial to a key issue. Id. at 873. Alternatively, the error is 
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harmless if that evidence is cumulative of other evidence or “if the rest of the evidence was so 

one-sided that the error likely made no difference.” Id.

As an initial matter, we have only received a partial record on appeal, consisting

of the pretrial hearing on the motion to exclude, testimony of six of the twenty-three witnesses 

who testified at trial, the jury charge conference, and exhibits admitted into evidence. However, 

that partial record does not include, among other things, voir dire, opening or closing statements 

by the parties, or plaintiff’s full testimony. See id. at 871 (directing that harm analysis is based 

on considering whole trial). Because the record does not contain the request for a partial 

reporter’s record that includes a “statement of the points or issues to be presented on appeal,” 

Tex. R. App. P. 34.6(c)(1), we cannot determine whether other testimony in the record may have 

been relevant to the issues on appeal or the emphasis, if any, placed on Trooper Gutierrez’s 

testimony during those missing portions, see, e.g., Nissan Motor Co. v. Armstrong, 145 S.W.3d 

131, 144 (Tex. 2004) (explaining that court may consider “efforts made by counsel to emphasize 

the erroneous evidence” in determining harm). Accordingly, we must presume “that the material 

missing from the reporter’s record is relevant and supports the trial court’s judgment.” Leyva 

v. Aguado Stone, Inc., No. 03-23-00227-CV, 2023 WL 8243816, at *2 (Tex. App.—Austin 

Nov. 29, 2023, no pet.) (mem. op).

Even limiting our review to the partial record before us on appeal, we cannot say 

the admission of Trooper Gutierrez’s testimony was so harmful as to probably cause an improper 

judgment. The testimony presented to the jury consisted of his conclusions contained in the 

post-collision report about what may have contributed to the collision—that Baker had 

improperly driven on the highway’s improved shoulder before colliding with Williams, that 

William’s truck was disabled, that William’s failure to place emergency reflective triangles 
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behind his disabled trailer was not a “contributing factor” to the collision, and that Baker may 

have been “fatigued or asleep.” Portions of Trooper Gutierrez’s deposition testimony were also 

introduced at trial, addressing similar topics and conclusions.

Contrary to Baker’s suggestions, however, Trooper Gutierrez’s testimony was not 

crucial to the jury’s determination of the key issues before them and was largely cumulative of 

other evidence in the partial record before us. See Reliance Steel, 267 S.W.3d at 873. In 

particular, throughout the trial the jury repeatedly viewed the dual-screened collision video, 

which included simultaneous recordings of both the inside of the cab of Baker’s tractor-trailer 

and the roadway in front of Baker’s vehicle. The collision video spanned the approximately ten 

seconds preceding the collision through the immediate aftermath, and provided the jury, as 

factfinder, ample opportunity to determine the fault of the respective parties based on what the 

video showed. The collision video was such a crucial piece of evidence before the jury that it 

was played multiple times, “ad nauseum,” throughout the trial, with multiple testifying witnesses 

repeatedly reinforcing the importance of that videographic evidence. Judd Joy, Baker’s trucking 

reconstruction expert, testified that the video was “absolutely” the best evidence of how the 

collision occurred. William Miller, Williams’s accident reconstruction expert, testified that the 

video of the collision was the “unbiased witness in this case.” And two other expert witnesses, 

Dennis Seale (Baker’s human factors expert witness) and Roger Allen (Baker’s trucking expert 

witness), provided their testimony at trial while contemporaneously watching and describing the 

collision video.

Additionally, witnesses provided testimony relevant to the jury’s determination

that Williams was not at fault for the collision. On the plaintiff’s side, video excerpts from 

Baker’s deposition were presented to the jury where Baker admitted that, prior to the collision,
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he saw the “rear door” of Williams’ tractor-trailer and that “there was no - - no - - nothing and 

then I look - - looked - - I look up and see doors.” Seale testified that the reflective triangles 

provided a better visual cue than flashing lights about the incapacitated tractor-trailer, but when 

pressed whether Baker’s actions were excused by Williams’ failure to place reflective triangles, 

Seale conceded that “I’m not saying that, no, sir.” Joy conceded that “[t]here does seem to be 

times when [Baker] does seem to be looking down” immediately before the collision, that 

reflective triangles would not change the outcome if a driver were distracted, that his calculations 

were based in part on the collision video, and that the jury “can obviously look at the video and 

determine for themselves.” Allen also agreed that there were telltale signs of inattention and 

distraction by Baker, that Williams’ tractor-trailer is visible on the side of the road for ten 

seconds before the collision, and that Baker would not see reflective triangles or flashing lights 

“if he’s totally distracted in some way.”

Similarly, Miller, the defendants’ expert witness, testified about distractions 

inside Baker’s tractor-trailer at the time of the collision and described his determination that the 

collision video showed Baker was allegedly using an electronic device immediately before the 

collision. When asked about whether placing reflective triangles to warn of a disabled vehicle 

would have made a difference, Miller testified that there were several “huge cues” already 

present to warn Baker of the disabled tractor-trailer (such as the lane lines, reflective tape on the 

trailer, and the flashing hazard lights on Williams’ tractor-trailer) and that “if you don’t see the

elephant, how can you see the mice?” Reviewing the whole case, including all the evidence 

before the factfinder, see Reliance Steel, 267 S.W.3d at 871, we conclude that there was 

extensive other evidence supporting the jury’s determination that Williams was not at fault for 

the collision, see Gunn, 554 S.W.3d at 665 (“It is the province of the jury to resolve conflicts in 
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the evidence, and when reasonable jurors could resolve conflicting evidence either way, we 

presume they did so in accordance with the verdict.”).2

Baker argues that Trooper Gutierrez’s testimony was uniquely persuasive because 

he was the only disinterested expert witness. See, e.g., Nikoloutsos v. Nikoloutsos, 47 S.W.3d 

837, 839 (Tex. App.—Beaumont 2001, pet. denied) (“The testimony of a disinterested person 

undoubtedly carries more weight than similar testimony coming from interested parties to the 

case.”). Although testimony by a disinterested police officer “could” have an impact on a close 

case, see, e.g., Ter-Vartanyan v. R & R Freight, Inc., 111 S.W.3d 779, 784 (Tex. App.—Dallas 

2003, pet. denied), the cases relied on by Baker did not have videographic evidence of their 

respective collisions; instead, those cases involved juries weighing two competing narratives of 

what might have occurred, based solely on the testimony presented by the two sides. See, e.g.,

Walker v. Rangel, No. 14-08-00643-CV, 2009 WL 4342505, at *7 (Tex. App.—Houston [14th 

Dist.] Dec. 3, 2009, no pet.) (mem. op.) (stating four witnesses in total testified on causation and 

concluding erroneous admission of testimony by two witnesses favoring one collision narrative 

probably resulted in improper judgment). We cannot say Trooper Gutierrez’s disinterested 

testimony was similarly persuasive in this case, given the admission of the collision video 

at trial.

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2 Similarly, it is the province of the jury to resolve the conflicting testimonial evidence 

regarding the extent and urgency of the disability suffered by Williams’s tractor-trailer and 

Williams’s decision to stop his tractor-trailer on the improved shoulder. See Gunn v. McCoy, 

554 S.W.3d 645, 665 (Tex. 2018).

3 Baker also complains that Trooper Gutierrez’s testimony was harmful because the jury 

was not presented with evidence showing his lack of qualifications. Assuming deposition 

materials relating to Trooper Gutierrez’s qualifications were not shown to the jury, nothing in the 

partial record before us demonstrates that Baker was prevented from introducing those materials
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Baker argues that Trooper Gutierrez’s testimony was not cumulative because he 

was the only testifying law enforcement officer and he was the only witness to testify about 

fatigue or sleepiness of Baker being a contributing factor for the collision. However, whether 

testimonial evidence is cumulative is not based on the attributes of the testifying witness but 

rather whether the evidence is similar to other evidence already in the record. See Reliance Steel, 

267 S.W.3d at 873. Although Trooper Gutierrez was the sole testifying law enforcement officer, 

his testimony about the reflective triangles and whether they were a contributing factor to the 

collision is cumulative of other similar evidence, such as the collision video itself and testimony 

by the other expert witnesses. See, e.g., Siddiqui v. Yellow Freight Sys., Inc., No. 03-98-00517-

CV, 2000 WL 1433650, at *5 (Tex. App.—Austin Sept. 29, 2000, pet. denied) (not designated 

for publication) (concluding testimony about observations of driver’s behavior at emergency 

room was cumulative of other testimony about party’s alleged intoxication).

Even assuming the testimony about Baker being potentially fatigued or drowsy at 

the time of the collision was not cumulative of other evidence at trial, we cannot say that the 

limited testimony about Baker’s alleged fatigue or sleepiness (involving a single code entry on 

the post-collision report and references on approximately six pages of Trooper Gutierrez’s 

105-page deposition transcript) was crucial to the key issues before the jury. Without opening 

and closing statements in the record on appeal, nothing in the record shows that fatigue or 

sleepiness was emphasized by either counsel in their arguments to the jury. See Nissan Motor, 

145 S.W.3d at 144. Moreover, the record on appeal shows that instead of fatigue or sleepiness of 

Baker, the parties focused extensively on the content of the collision video and whether Baker 

as part of its case-in-chief or why Baker decided not to seek admittance of that qualification 

evidence.
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was distracted by a cellphone or other electronic device at the time of the collision. See Reliance 

Steel, 267 S.W.3d at 873 (explaining evidence must be “crucial” to key issue to be 

likely harmful).4

Baker contends that Trooper Gutierrez’s testimony must have caused an improper 

judgment because the jury assigned no fault to Williams. That is, Baker argues that Williams 

should have been held at least partially at fault for the collision for failing to place reflective 

triangles behind his disabled tractor-trailer in a timely fashion, and therefore Trooper Gutierrez’s 

testimony must have improperly led the jury to assign no fault to Williams. Even if the jury 

should have assigned some percentage of fault to Williams, that does not mean that Trooper 

Gutierrez’s testimony led to an improper judgment; Baker would have still been barred from 

recovery if the jury had assigned anything less than 50% of responsibility to Williams. See Tex. 

Civ. Prac. & Rem. Code § 33.001. The jury, however, was presented with testimony by multiple 

expert witnesses, the collision video, and numerous other exhibits at trial from which the jury 

could determine who was at fault for the collision and undertake their role as “the sole judges of 

the credibility of the witnesses and the weight to give their testimony.” Gunn, 554 S.W.3d at

665. Given the evidence before them, the jurors could have determined that any failure by 

Williams to place the reflective triangles was irrelevant because Baker would not have seen them 

because he was distracted prior to the collision. See id. (“It is the province of the jury to resolve 

conflicts in the evidence, and when reasonable jurors could resolve conflicting evidence either 

way, we presume they did so in accordance with the verdict.”). And the jury could have reached 

4 When discussing how Baker’s possible fatigue or sleepiness may have contributed to 

the collision, Trooper Gutierrez often contemporaneously mentioned that Baker being distracted 

may have also been a contributing factor.
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that determination regardless of the testimony by Trooper Gutierrez. See Reliance Steel, 

267 S.W.3d at 873.

Based on the partial record on appeal, we conclude that any error in admitting 

Trooper Gutierrez’s testimony as an expert witness did not probably cause the rendition of an 

improper judgment. See Tex. R. App. P. 44.1(a); Reliance Steel, 267 S.W.3d at 873. We 

overrule Baker’s sole issue on appeal. 

CONCLUSION 

For these reasons, we affirm the final judgment. 

__________________________________________

Darlene Byrne, Chief Justice

Before Chief Justice Byrne, Justices Smith and Theofanis

Affirmed

Filed: April 25, 2024