Oldham County, TX — September 8, 2025, Ronald Momyer, Julie Momyer, and a child were killed due to a truck accident just after 6:30 p.m. along Interstate 40.

According to authorities, three people—62-year-old Ronald Momyer, 61-year-old Julie Momyer, and an 11-year-old boy—were traveling in a westbound Honda Pilot on I-40 in the vicinity just west of Vega, Texas, when the accident took place.

Officials indicate that, for as yet unknown reasons, an eastbound 18-wheeler entered the shoulder area where it struck the rear-end of a second 18-wheeler that had been parked and unoccupied at the time. Following the initial collision, the 18-wheeler veered left, crossing over the eastbound lanes of the freeway and the median before entering the westbound lanes. There, it was involved in a secondary collision with the Pilot.

Both Ronald Momyer and Julie Momyer reportedly sustained fatal injuries due to the wreck and were declared deceased at the scene. The 11-year-old who had been a passenger in the Pilot suffered critical injuries and was flown to an area medical facility in order to receive immediate treatment. However, he was ultimately unable to overcome the severity of his injuries, having there been declared deceased, as well.

Additional details pertaining to this incident are not available at this point in time. The investigation is currently ongoing.

Commentary by Attorney Michael Grossman

When people hear about a crash like this—where a semi-truck allegedly crossed a median and collided with a family vehicle—it’s natural to assume that the truck driver must have done something wrong. Maybe that will turn out to be true. But the truth is, we don’t know yet, and that uncertainty should be a major red flag for anyone hoping to get real answers.

What’s not in the reports is more revealing than what is. No one has said why the truck veered off course in the first place. That’s not a minor gap—it’s the entire heart of the matter. Was the driver distracted? Did he fall asleep? Did the vehicle malfunction? Did something about the road or traffic pattern contribute to what happened? We’re left with unanswered questions that matter deeply in figuring out not just what happened, but why, and whether it could’ve been prevented.

From a legal standpoint, this kind of incident demands a forensic-level investigation. Black box data from the truck—formally known as the engine control module—can show how fast the vehicle was going, whether the brakes were applied, and what steering inputs were made before the truck crossed the median. If the truck had in-cab cameras, those may reveal whether the driver was alert and responsive or distracted and inattentive. Cell phone records can confirm or rule out texting or calling at the time of the crash.

Another avenue worth examining is the truck itself. Was there a mechanical failure? Were the tires intact? If the vehicle wasn’t properly maintained, that could shift fault toward the company that owns or services the truck. And speaking of the company—what do we know about their hiring practices? Their training protocols? Their safety record? In past cases I’ve handled, it wasn’t just the driver who dropped the ball; it was a company that never should have put him behind the wheel to begin with.

It’s also unclear whether the parked 18-wheeler that the eastbound truck initially hit was stopped legally. Was it pulled onto the shoulder for a mechanical issue? Was it parked in a designated area or improperly idling on a live shoulder? Depending on those facts, liability could extend further than just the moving vehicles.

These are not academic questions. They determine whether a company ignored risks, cut corners, or failed to act when it should have. And until someone gets access to the full range of evidence—electronic logs, driver history, dash cams, ECM data—no one can say for sure who should be held accountable.

Key Takeaways:

• The cause of the truck’s crossover into westbound lanes remains unknown; without that, assigning blame is premature.
• Key evidence—including black box data, in-cab video, and cell phone records—will be crucial in reconstructing the crash.
• It’s not yet clear whether the truck driver, the trucking company, or other parties contributed to the crash through negligence.
• Even stationary vehicles, like the parked truck initially struck, must be scrutinized to see if they were properly positioned.
• Accountability depends on what the evidence reveals—not speculation or assumptions.