Grayson County, TX — October 10, 2024, Tonya Gaddie was killed and another person was injured in a car accident at about 9:15 p.m. on U.S. Route 377.
Authorities said a 2010 Ford Focus was driving south when it veered into the wrong lane, crashing into a 2014 Ford F-350.

Focus driver Tonya Leeann Gaddie, 42, died in the crash, according to authorities, while the 53-year-old man driving the pickup suffered serious injuries. A 15-year-old girl was checked out for possible injuries as well.
Authorities have not released any additional information about the crash north of Whitesboro.
Commentary by Attorney Michael Grossman
When a crash like the one in Grayson County happens, it’s essential to take a step back and ensure that every possible contributing factor is carefully examined. A vehicle drifting into oncoming traffic may seem like a case of driver error, but in my experience, these situations can be far more complex than they first appear. That’s why it’s critical to ask three key questions to ensure a complete and thorough investigation.
The first question is whether authorities conducted a proper investigation. Head-on collisions are among the most devastating types of crashes, and determining exactly why a vehicle veered into the wrong lane is crucial. Did investigators consider whether road conditions — such as poor lighting, sharp curves or obstacles — played a role? Did they check for evidence that the driver swerved to avoid another vehicle, debris or even an animal? A full accident reconstruction should explore all of these possibilities to provide a complete picture of what happened.
The second question is whether a mechanical failure contributed to the crash. The Ford Focus involved in this collision was nearly 15 years old, meaning potential defects like steering malfunctions, brake failures or tire blowouts should be considered. If a sudden mechanical issue caused the vehicle to veer into the wrong lane, that’s something that should be investigated before the car is scrapped or repaired. While it’s common for people to assume that a driver losing control must have been distracted or impaired, mechanical failures are often overlooked as a potential cause.
The third question is whether all electronic data related to the crash has been collected. Both vehicles likely contain engine control modules that store crucial data such as speed, braking and steering input leading up to the crash. This information could help determine whether the driver attempted to correct the vehicle’s path before impact. Additionally, surveillance footage from nearby businesses, traffic cameras or dashcams from other vehicles could provide valuable insights. If authorities haven’t gathered this evidence, an independent investigation may still be able to recover it.
When a vehicle crosses into oncoming traffic, it’s easy to assume the cause is simple human error, but that assumption shouldn’t take the place of a full investigation. Without answering these three key questions, it’s impossible to fully understand what led to the crash. The best way to ensure accountability and provide those affected with the answers they deserve is to examine every possible contributing factor before drawing conclusions.