Breaking Down the Fatal CMV Crash on I-10 Near Speedway Blvd. in Tucson, AZ

Michael GrossmanJune 03, 2025 2 minutes

On the evening of June 2, two people were killed in a crash involving a commercial vehicle on Interstate 10 near Speedway Boulevard in Tucson. According to Arizona DPS, the incident began around 8 p.m. when a vehicle was involved in a non-injury crash and came to rest partially blocking a lane of traffic. A second vehicle pulled over nearby to offer assistance. As the driver of that second vehicle stepped away, a commercial vehicle allegedly struck it from behind, killing two people who remained inside. The crash involved three vehicles in total, and authorities continue to investigate.

Crashes like this one often raise serious concerns about driver attentiveness and whether the commercial vehicle operator responded appropriately to the conditions on the roadway. It also calls into question the condition of the commercial vehicle itself.

Was the Commercial Driver Distracted or Fatigued?

One of the first questions investigators are likely to examine is whether the commercial vehicle driver saw the stopped vehicles in time to avoid a collision. When a large vehicle approaches hazard lights, brake lights, or any indication of stopped traffic, the driver must react quickly and safely. In my experience, crashes like this are often linked to driver distraction, fatigue, or delayed reaction time.

Could Vehicle Condition Have Been a Factor?

Mechanical performance may also play a role in why a commercial vehicle is unable to stop in time. Investigators will likely review whether the truck’s braking system was functioning properly and whether the tires and other critical components were in safe condition. If the commercial vehicle had underlying mechanical problems, it could have affected stopping distance or control, especially if the driver attempted a sudden maneuver. Maintenance records and post-crash inspections will be important to rule out equipment failure.

What Data Can Help Clarify the Collision?

To fully understand how the crash occurred, investigators will likely examine Engine Control Module (ECM) data from the commercial vehicle, which can show speed, throttle input, and braking activity in the seconds leading up to the impact. Dashcam footage could also reveal how clearly the vehicles were visible and whether the commercial driver attempted to slow down. Roadway evidence like skid marks and final vehicle positions can also help reconstruct what happened.

Why a Detailed Investigation Is Essential

When a commercial vehicle strikes a stopped car on a major highway, it’s important to determine exactly why it happened. In my view, understanding whether the truck was operated safely, whether the driver was paying attention, and whether the vehicle was in good working order is essential to providing answers to those affected by the crash.