A Box Truck Landed on a Car Near San Antonio and Killed the Driver, and Here Is What a Texas Family Can Do Next

The driver who died was Anthony Stephenson, 63, of Seguin. Early on October 22, 2025, a box truck heading west on Interstate 10 left the highway near the State Highway 123 Bypass, just northeast of San Antonio, and came down onto the road below, striking one car and landing on the sedan Mr. Stephenson was driving. Seguin police said he was pronounced dead at the scene, and two other people, the box truck driver and the driver of the second car, were taken to the hospital (Seguin Police Department, KSAT, San Antonio Express-News). We at J. Alexander Law Firm have sat with Texas families after a commercial truck took someone they love, and we wrote this to answer the question so many people typed that morning, who was the driver, and then to explain, plainly, what the law lets a family do when a truck like this lands on a car. Our condolences are with Mr. Stephenson’s family, and nothing here speaks for them.

What happened in the Seguin box truck crash: a truck left I-10 and came down onto the road below

Just after 6:30 in the morning on October 22, 2025, a white box truck was heading west on Interstate 10 when, for reasons investigators have not yet explained, it left the highway near the State Highway 123 Bypass on the edge of Seguin. The truck came down onto the bypass, where it first struck a gray sedan and then landed on a red sedan in the northbound lanes. The driver of the red sedan, Anthony Stephenson, did not survive. The box truck driver and the driver of the gray sedan were both taken to the hospital, and police closed the intersection for hours to clear the scene and begin their work (Seguin Police Department, KSAT, San Antonio Express-News). A box truck is a commercial vehicle, a straight truck with a boxed cargo body, and even a mid-size one weighs many times what a family car does. That is why a truck coming off a highway onto the road below is not a fender bender but a catastrophe for whoever is beneath it.

Whether Seguin counts as San Antonio: the same metro, a different county and police force

Many people searched for this as a San Antonio crash, and in the way most people mean it, that is fair. Seguin sits about 35 miles northeast of downtown San Antonio, inside the San Antonio metro area, along the Interstate 10 corridor that carries commuters and freight between the two. But Seguin is its own city in Guadalupe County, not Bexar County, so the crash is being handled by the Seguin Police Department, not the San Antonio Police Department. That distinction matters for a family, because the agency that holds the crash report, the scene photos, and the investigation file decides where the evidence lives and how to request it. We handle San Antonio truck accident and car accident cases across the whole metro, including the smaller cities like Seguin, New Braunfels, and Schertz that ring it.

What made the truck leave the highway: the cause is still under investigation, and that is the honest answer

As of the last public update, the Seguin Police Department had not said why the truck left Interstate 10, and we will not guess. No cause has been released, no one has been charged, and speed, a tire, the load, a medical event, and the road itself are all still open questions. What we can tell you is how that question gets answered, because it rarely answers itself. In a serious truck crash the proof lives in places that disappear quickly: the truck’s engine control module, which records speed and braking in the seconds before impact, the company’s maintenance and inspection logs, the driver’s hours of service records, the cargo weight and how it was secured, and the marks left on the road itself. We at J. Alexander Law Firm move in the first days to preserve those records before they are overwritten or lost, because once they are gone, the honest answer to what happened can become impossible to reach.

Why a truck on a car is so often fatal: the people who die in truck crashes are usually in the other vehicle

A loaded box truck can outweigh a passenger car many times over, and physics does the rest. When that weight comes down on a car, the safety cage that is meant to protect the people inside is overwhelmed, and there is little a seat belt or an airbag can do against a load falling from above. This is the hard pattern behind truck crashes across the country: in fatal crashes involving a large truck, roughly seven in ten of the people who die are in the other vehicle, not the truck, according to federal crash data (FMCSA). Texas sees more of this than any state, because it leads the nation in both freight traffic and road deaths (TxDOT). It is also why the injuries survivors carry out of a truck crash are so often catastrophic ones, the kind that change a life and a household, not the kind that heal in a week.

What it is like when a big truck hits a smaller vehicle: how we helped Alondra after an 18-wheeler came into her lane

Alondra told her story on camera. She was driving on the highway toward downtown Dallas when an 18-wheeler drifted into her lane and hit the entire side of her car, sending it swerving. In that first moment, she said, you are in such shock that you do not feel anything; the pain in her neck and lower back came later, and as a teacher on her feet all day, she felt it for months. She called our team right after the crash, went straight to the doctor, and stayed in treatment for four to five months until she was released. When her case resolved, the result was far more than she expected, and she said she had never seen a check like it. Her crash was not this one, and every case is different, but it is the same shape: a truck that did not stay in its lane, and a person in a smaller vehicle left to carry the harm. When an 18-wheeler comes into your lane, the fight is almost always with a commercial insurer, and that is a fight we know. Watch the rest of Alondra’s story.

Who can be held responsible when a commercial truck crashes: usually more than just the driver

When a box truck or an 18-wheeler is involved, responsibility rarely stops with the person behind the wheel. A commercial truck is run by a business, and Texas and federal law hold that business to a higher standard than an ordinary driver. Fault can live in several places at once: with the driver, if they were speeding, tired, or distracted; with the trucking company, if it pushed an unrealistic schedule, skipped maintenance, or put an unqualified driver on the road; and with whoever loaded or secured the cargo, if a shifting or overweight load helped send the truck out of control. Each of those is proven with different records, the driver’s logbook, the company’s files, the maintenance and inspection history, and the cargo manifest, which is exactly why the evidence work in the first days matters so much. A commercial case is bigger and better documented than a two-car fender bender, and it is worth understanding what a truck claim can be worth before an insurer offers you a number.

How insurance works after a commercial truck crash: bigger policies, but shared, and your own coverage still matters

A commercial truck usually carries far more insurance than a family car, which is one reason these cases are worth pursuing carefully rather than settling fast. But bigger does not mean simple. When more than one person is hurt in the same crash, as happened here, those injured share the same policy, and a catastrophic injury can drain even a large limit. Your own coverage is the backstop the insurers hope you forget. Personal injury protection is the part of your policy that pays your first medical bills, no matter who was at fault. Coverage for when the other driver has no insurance or not enough, called uninsured and underinsured motorist coverage, sits in every Texas auto policy unless you rejected it in writing, and it fills the gap when the at-fault side cannot cover what it caused, the same coverage that matters when you are hit by an uninsured or underinsured driver. The trucking company’s insurer, meanwhile, goes to work in the first hours, and dealing with that insurer before you have your own footing is where a lot of families lose ground.

When the other side cannot pay for what they did: how we helped Morgan after an uninsured driver hit her

Morgan was on her way to a morning workout when a car came fast out of the corner of her eye, spun her into an electrical pole, and left her facing oncoming traffic. Her airbags deployed, the seat belt left burns, and the scans later showed herniations in her back. Then came the second blow: the driver who hit her had no insurance, and she was told the whole cost might land on her, on a car she had already paid off. A neighbor handed her our card. She gave her statement once, and from there, in her words, a weight lifted, because she did not have to fight the insurance company herself. That is what uninsured and underinsured coverage is for, and it is why we ask about it in every case, because the at-fault side, a truck company included, does not always have enough to make a family whole. Watch the rest of Morgan’s story.

When a truck crash takes a life in Texas: who the law allows to recover

A family lost Anthony Stephenson in this crash, and Texas law gives a family in that position a path, though we know no claim brings a person back. Our condolences remain with them, and nothing on this page is meant to speak for them or assign blame to anyone. For families who face this, the law provides two claims that run together. A wrongful death claim belongs to the closest family, the surviving spouse, the children, and the parents, and it is meant to recover for their loss. A separate claim, which Texas calls a survival claim, carries forward what the person who died could have brought themselves, on behalf of the estate. Both run on the same two-year filing deadline, and for a death that clock starts on the date of death. When the at-fault side’s limits are not enough, the family’s own uninsured and underinsured coverage can help fund the recovery. There is no rush to decide anything today, and no family should feel pushed.

What to do after a truck crash in the San Antonio area: the steps that protect a claim, and the words that can cost you one

The first thing we tell people who call us after a truck crash is that the early days decide a great deal, both for their health and for any claim. Here is the order we walk them through.

• See a doctor the same day. Shock hides injuries, and truck-crash harm to the neck, back, and brain often shows up hours later, as it did for our clients. A same-day record also ties the injury to the crash.
• Report it, but keep to the facts. Give police the plain facts of time, place, and vehicles, and let the investigation find the cause. You are not required to theorize at the scene.
• Photograph the truck and its markings. The company name, the license plate, the trailer numbers, and any signage identify who the truck belongs to, which is where responsibility often leads.
• Do not give a recorded statement yet. The truck company’s insurer may call within hours. You do not have to be recorded, and what you say can be used to shift blame onto you.
• Save everything and act early. Keep bills, photos, and names, and reach a lawyer before the truck’s data and logs can be overwritten, because that evidence does not wait.

How we build a case out of a truck crash: preserve the proof, map every responsible party, and never leave you in silence

Josh Alexander

Founding Attorney, J. Alexander Law Firm

How our team builds a truck case

In a truck case our first move is not the courtroom, it is preservation. We send the trucking company a legal hold within days so the data recorder, the logs, and the maintenance files cannot quietly disappear, and then we map every party who shares the blame, the driver, the company, the loader, so no responsible pocket is missed. That work is what decides whether it is worth getting a lawyer, and it costs you nothing up front, because we are paid only if we recover for you.

One honest word about time: a serious truck claim does not settle overnight, because the proof has to be built before any number is fair. Our answer is to keep you in the loop the whole way, the weekly check-in our clients describe, so you are never left wondering. You have two years to file, but the evidence work starts in the first week, while the truck’s data and logs still exist.

J. Alexander Law Firm handles motor vehicle and serious injury cases across Texas, including truck crashes in the San Antonio area. Founding attorney Josh Alexander has been named a Super Lawyers Rising Star every year from 2022 through 2026.

If a truck crash reached your family near San Antonio, talk to our team today