Cook County, IL — February 28, 2025, One person was killed following an 18-wheeler accident that occurred at around 1:30 A.M. on I-57.

An investigation is underway following an 18-wheeler accident that left one person dead during the early-morning hours of February 28th. According to official reports, an 18-wheeler was traveling on I-57 in the southbound lanes near 159th Street, when for unknown reasons the 18-wheeler was involved in an accident that involved two other vehicles.

When first responders arrived on the scene, they found that one person had sustained fatal injuries and they were pronounced deceased. At this time there is unfortunately not a lot of information that has been released from this crash, which is unfortunate given how serious and complex commercial vehicle accidents can be, and currently there has been no information on any other injuries, or what caused the accident. However this is is an ongoing investigation and more details may emerge in the future.

Commentary by Attorney Michael Grossman

When an 18-wheeler is involved in a multi-vehicle crash that results in a fatality, it’s essential not to make assumptions based solely on limited early reports. These types of crashes are often far more complex than they appear, and they require a very specific kind of investigation to ensure that the facts are fully understood. While the details from this crash on I-57 are still sparse, we can’t ignore the three key questions that must be asked in any serious accident—especially one involving a commercial truck: Did the authorities thoroughly investigate the crash? Has anyone looked into the possibility that a vehicle defect caused the crash? And has all the electronic data relating to the crash been collected?

The first question—about the quality and depth of the investigation—is especially important in collisions involving large commercial vehicles. A fatal crash that includes an 18-wheeler and multiple other vehicles typically results in a complicated scene with overlapping damage, various impact points, and different versions of what happened. To sort through that, investigators need to reconstruct the crash using vehicle positions, debris fields, skid marks, and any electronic or physical evidence from the scene. But not every agency has the resources or training to investigate commercial vehicle crashes to the level they demand. And if that step is missed, key facts can go unrecorded or misinterpreted.

The second question is whether a vehicle defect could have contributed. When people think about 18-wheeler crashes, they often focus on the driver or the load being hauled—but mechanical issues are just as critical. Brake failures, steering problems, tire blowouts, and defective trailer couplings have all been documented causes of serious crashes involving commercial vehicles. These types of issues often don’t leave visible signs at the crash scene and require forensic analysis of the truck, trailer, and possibly the other vehicles involved. But for that to happen, the vehicles must be preserved and evaluated before repairs or scrapping occur. Too often, that doesn’t happen unless someone insists on it early in the process.

Finally, the role of electronic data can’t be overstated. Commercial vehicles are typically equipped with sophisticated electronic control modules (ECMs) that monitor and store critical data—speed, brake application, throttle input, GPS location, and more. Many trucks also have telematics systems and dashcams that can give investigators a detailed second-by-second account of what occurred before the crash. The passenger vehicles involved may also contain ECMs that could provide their own pre-crash data. However, this information is time-sensitive and can be lost or overwritten if it’s not collected promptly and handled properly.

With so many unknowns still surrounding this crash, it’s more important than ever that investigators—and those affected—push to ensure these three questions are answered. Understanding what happened isn’t just about closing a file—it’s about making sure every contributing factor is accounted for, and that no evidence is lost to time or oversight. That’s the only way to ensure accountability, learn from what occurred, and protect others from facing a similar loss in the future.