3 Injured in Single-car Accident on U.S. 75 in Denison, TX
Grayson County, TX — January 4, 2025, three people were injured in a single-car accident at approximately 4:30 a.m. along U.S. Highway 75.
According to authorities, three people—a 23-year-old woman, an 18-year-old man, and a 22-year-old man—were traveling in a northbound Toyota Camry on U.S. 75 in the vicinity north of the S.H. 503 junction when the accident took place.

The cause of the accident remains unclear. Officials indicate that, for as yet unknown reasons, the Camry was involved in a single-vehicle collision in which it overturned. The 22-year-old passenger reportedly sustained serious injuries over the course of the accident.
The woman and the other man who had also been in the vehicle received more minor injuries, according to reports. Additional details pertaining to this incident—including the identities of the victims—are not available at this point in time. The investigation is currently ongoing.
Commentary by Attorney Michael Grossman
When I hear about a single-vehicle crash like the one that happened in Grayson County early on January 4th, my first thought is that I hope those injured are receiving the care they need and that the full story of what happened eventually comes to light. It's common for people to assume that when only one car is involved, the driver must be responsible. But based on years of experience examining these kinds of crashes, I can tell you the reality is often much more complicated. To understand what really happened, we have to ask three essential questions that every serious crash demands.
First, did the authorities thoroughly investigate the crash? The initial reports describe the Camry overturning around 4:30 in the morning, a time when visibility is low and road conditions can be tricky. It's not clear yet what caused the vehicle to overturn, and that's a crucial gap. A thorough investigation should include accident reconstruction, analysis of tire marks, roadway conditions, and mechanical inspections. Authorities often do their best, but their time and resources can be stretched thin—particularly in rural areas like Grayson County. That’s why independent reviews can be so important. If law enforcement isn’t able to determine the cause, a private investigator with the proper resources might be needed to take the next step.
Second, has anyone looked into the possibility that a vehicle defect caused the crash? Single-vehicle rollovers, especially when they occur without a clear external cause like another vehicle or an obstacle, raise red flags. Issues such as steering or suspension failure, tire blowouts, or even problems with the car’s electronic stability control system can all contribute to a crash like this. Unless someone examines the vehicle with this in mind—and that usually requires a forensic team with mechanical expertise—these defects can go unnoticed. It's also essential to preserve the vehicle as-is until this inspection can happen. Unfortunately, many potential defect cases are lost simply because the vehicle is disposed of too soon.
Lastly, has all the electronic data relating to the crash been collected? Modern vehicles like the Toyota Camry often contain black box systems that record valuable data before, during, and after a crash—things like speed, steering angle, braking, and seat belt use. In addition to the vehicle’s own systems, investigators should look into any nearby traffic cameras, security footage from businesses near S.H. 503, and cell phone data from the occupants, especially if distraction or drowsiness could be factors. This data can often paint a clearer picture of how events unfolded than eyewitness recollections alone.
Answering these three questions is critical to making sure that no stone is left unturned in understanding the causes of a crash like this. Serious wrecks deserve serious investigation, not assumptions. Getting clear answers to these questions is crucial for those seeking to understand what happened and why—and it's the least that can be done to help those affected find the clarity and closure they deserve.

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