Grief Is Real. So Is the Burden of Proof.

Few criminal allegations carry the emotional weight of an intoxication manslaughter charge. These cases involve the loss of life, and the grief that follows touches everyone involved.

Many accused of this offense worry a death means a conviction is inevitable. That assumption is wrong, and acting on it can be costly. A death doesn’t minimize the State’s burden of proof. Before a conviction is possible, the State must prove every element of the offense beyond a reasonable doubt.

At Denuna & Westbrook, PLLC, we understand the weight of these cases. We recognize that a family has suffered an irreversible loss. At the same time, our responsibility is to protect our client’s rights, evaluate the evidence, challenge unsupported assumptions, and require the State to prove its case according to the law. Compassion and a vigorous defense are not mutually exclusive.

Denuna & Westbrook represents individuals facing intoxication manslaughter charges throughout Houston and the Gulf Coast region.

How Intoxication Manslaughter Differs from Manslaughter

Intoxication manslaughter is a separate offense from traditional manslaughter under Texas law, and the distinction matters.

Traditional manslaughter under Texas Penal Code Section 19.04 focuses on reckless conduct: whether a person’s actions created a substantial and unjustifiable risk of death. Intoxication manslaughter centers on different issues: was the person intoxicated, and did that intoxication cause the fatal collision? As a result, these cases focus heavily on intoxication evidence, accident reconstruction, causation, and scientific testing rather than the nature of the driving conduct itself. The State must still prove every required element beyond a reasonable doubt.

A Second-Degree Felony with a Demanding Burden of Proof

Under Texas Penal Code Section 49.08, intoxication manslaughter is a Second-Degree Felony carrying a punishment range of two to twenty years in prison and a fine of up to $10,000. The charge arises when the State alleges that a person operated a motor vehicle in a public place while intoxicated and, by reason of that intoxication, caused an accident resulting in another person’s death.

The State must prove intoxication, causation, and death beyond a reasonable doubt. A weakness in any one of those areas can change the direction of the case.

Texas law defines intoxication three ways: loss of normal mental faculties, loss of normal physical faculties, or a blood alcohol concentration of 0.08 or greater, each caused by alcohol, drugs, controlled substances, dangerous drugs, or a combination of substances.

Prosecutors may attempt to demonstrate intoxication through officer observations, field sobriety testing, witness testimony, video evidence, breath or blood testing, or drug-related evidence.

Proving Causation is the State’s Most Difficult Burden

Every year, fatal accidents occur throughout Texas involving poor decisions, distraction, weather conditions, roadway design, mechanical failures, and the actions of other drivers. Those facts may create civil liability and wrongful death litigation. Criminal liability requires something more.

To secure a conviction for intoxication manslaughter, prosecutors must prove that intoxication caused the accident that resulted in the death. Being involved in a fatal collision, even one where alcohol was present, is not the same thing as causing it.

Fatal accidents happen for many reasons. Another driver’s negligence, unsafe lane changes, roadway hazards, weather conditions, visibility limitations, medical emergencies, and vehicle defects can all contribute to or directly cause a collision. The prosecution must do more than point to a tragic result and assume intoxication was responsible. The evidence must actually support that conclusion. When it falls short, the defense has a better foundation to build on.

Multiple Investigations, One Prosecution

Intoxication manslaughter cases involve several separate investigations that converge into a single prosecution. Each produces evidence prosecutors rely on in court, and each deserves independent examination.

Law enforcement conducts a DWI investigation focused on intoxication evidence. Accident reconstruction specialists analyze how the collision occurred. Medical professionals evaluate the cause of death. Laboratories perform chemical testing. Witnesses provide statements. The risk is that assumptions made in one area can drive conclusions in another before all the evidence has been fully reviewed.

Accident Reconstruction

Reconstruction experts may analyze vehicle damage, roadway evidence, event data recorder information, speed calculations, braking patterns, visibility conditions, and other physical evidence. When reconstruction evidence is incomplete or built on flawed assumptions, conclusions about fault and causation become unreliable. A reconstruction that assumes intoxication caused the crash before all evidence has been gathered is starting from the wrong place.

Timing and Chemical Testing

In most cases, chemical testing occurs well after the accident. A test result obtained hours after a collision doesn’t necessarily reflect a person’s condition at the moment the accident occurred.

To bridge that gap, prosecutors sometimes rely on retrograde extrapolation, which involves scientific assumptions about how alcohol was absorbed and eliminated over time. Those calculations depend on assumptions about drinking patterns, absorption rates, elimination rates, food consumption, and other variables. Whether those assumptions are supported by the actual evidence in the case is a legitimate defense issue in every prosecution where they arise.

Cause of Death

Unlike intoxication assault, intoxication manslaughter requires proof that a person died. But the State must also prove that death resulted from the accident in question, and that the accident resulted from the intoxication. Medical evidence, autopsy findings, and expert testimony may all become relevant to whether the State can satisfy that chain of causation beyond a reasonable doubt.

What to Expect After the Arrest: Bond, Monitoring, and Daily Life

An intoxication manslaughter arrest triggers immediate consequences that bear little resemblance to a standard DWI case. Courts treat these cases with a level of seriousness that shows up from the very first court appearance.

Bond conditions in intoxication manslaughter cases are among the most restrictive imposed in any DWI-related prosecution. Depending on the judge and the facts, conditions may include:

• A complete prohibition on driving until the case is resolved
• A continuous alcohol monitoring device worn on the ankle, transmitting data 24 hours a day
• Random drug and alcohol testing at the direction of pretrial services
• Ignition interlock requirements on any vehicle the defendant is permitted to operate
• Travel restrictions, curfews, and GPS monitoring
• Regular reporting obligations to a pretrial supervision officer

The reality for most clients is that even when driving is technically permitted, the combination of ignition interlock requirements, continuous monitoring, and court scrutiny makes any violation immediately visible. A single failed test, a missed check-in, or a detected alcohol reading can result in bond revocation and immediate incarceration while the case is still pending.

Getting counsel involved immediately after the arrest is one of the most important decisions in these cases. Bond hearings move quickly, and the conditions set at that first appearance can define daily life for months or years while the case works toward resolution.

The ALR Hearing in an Intoxication Manslaughter Case

An intoxication manslaughter arrest triggers an Administrative License Revocation (ALR) proceeding, just like any other DWI offense. However, even if someone avoids a suspension through the ALR process, the criminal court’s bond conditions may prohibit any driving until the case is concluded. The outcome of the ALR hearing has no bearing on the criminal case or the court’s bond conditions.

That doesn’t make the ALR hearing less important. In cases of this magnitude, it can become one of the most valuable tools available for the defense.

Unlike a criminal proceeding, the ALR hearing happens quickly and requires the State to produce its witnesses. In cases of Intoxication Manslaughter, there are numerous officers involved, and each must testify under oath.

The sworn testimony gathered at an ALR hearing creates a record that can be used throughout the criminal case. Inconsistencies between what an officer says at the ALR hearing and what they say at trial become powerful impeachment material. Details buried in reports can be explored before the criminal case fully develops. Overall, requesting an ALR hearing in an intoxication manslaughter case isn’t just about protecting a license, it’s about building a better defense.

The Emotional Weight of These Cases Doesn’t Change the Law

Intoxication manslaughter cases involve strong emotions. A family has lost a loved one. Investigators, prosecutors, judges, and jurors understand the gravity of that loss. But criminal cases can’t be decided by emotion alone. They must be decided by evidence.

The seriousness of the outcome doesn’t eliminate the prosecution’s burden to prove intoxication, causation, and every other required element beyond a reasonable doubt. Making sure that assumptions, sympathy, and grief don’t substitute for proof is one of the most important functions of the defense in these cases.

These cases involve accident reconstruction, toxicology, blood testing, medical evidence, engineering principles, and witness testimony. Prosecutors ask jurors to evaluate numerous scientific and factual issues simultaneously. Every aspect of the State’s case deserves independent examination before any conclusions are reached.

Intoxication Manslaughter Defense in Houston

Intoxication manslaughter cases demand a level of preparation that goes beyond most criminal prosecutions. Chris Denuna and Nick Westbrook have handled cases where the facts were devastating, the pressure to accept a plea was significant, and the emotional stakes were enormous.

What doesn’t change is the legal standard for this charge. Every aspect of the State’s case is examined regardless of how serious the allegation is or how the facts look at the time of arrest: the accident investigation, the chemical testing, the reconstruction evidence, the medical evidence, and the theory of causation. The State carries the burden of proof on every element, and that burden doesn’t diminish because a death occurred.

A case that looks closed at the time of arrest can look very different after the evidence has been fully examined.

Frequently Asked Questions — Intoxication Manslaughter in Texas

Is intoxication manslaughter the same thing as manslaughter?

No. Traditional manslaughter requires proof of reckless conduct. Intoxication manslaughter is a separate offense focused on whether intoxication caused the fatal accident. Both involve a death, but the legal theories and required elements differ.

Does a death automatically mean I’m guilty of intoxication manslaughter?

No. The State must prove not only that a death occurred but also that intoxication caused the accident that resulted in that death.

What is the difference between intoxication assault and intoxication manslaughter?

Intoxication assault involves serious bodily injury. Intoxication manslaughter involves a death. Both require proof of intoxication and causation beyond a reasonable doubt.

What if another driver contributed to the accident?

The role of other drivers, roadway conditions, and environmental factors may all become relevant to whether the State can prove causation.

Can I be charged even if I’ve never been arrested before?

Yes. Many intoxication manslaughter cases involve individuals with no prior criminal history and no prior DWI convictions.

Will I lose my driver’s license from an intoxication manslaughter arrest?

It depends. Your license is subject to suspension through the Administrative License Revocation (ALR) process. If an ALR hearing is not requested within the specific deadline or the hearing is unsuccessful, a suspension takes effect regardless of the criminal case. Even if the suspension is successfully challenged, bond conditions may restrict or limit any driving while the case is pending. Still, requesting an ALR hearing creates an early opportunity to cross-examine the State’s witnesses and build a strong record before the criminal case fully develops.

Will I go to prison if I’m charged with intoxication manslaughter?

Prison is a real possibility given the severity of the charge, but it’s not a foregone conclusion. The outcome depends on the facts, the evidence, and how the case is resolved.

Contact a Houston Intoxication Manslaughter Lawyer Today

An intoxication manslaughter allegation carries some of the highest stakes in the criminal justice system. The State must still prove intoxication, causation, and every other required element beyond a reasonable doubt. A tragic outcome alone is not enough.

Denuna & Westbrook, PLLC represents individuals charged with intoxication manslaughter throughout Houston and the Gulf Coast region, including Harris County, Fort Bend County, Montgomery County, Galveston County, Brazoria County, and Waller County.