Johnson County, IA — February 12, 2025, Enoch Mampuya was killed in a truck accident at about 9 p.m. on eastbound Interstate 80.

Authorities said a Mercedes Sprinter van drove cross the median and crashed into a disabled semi-truck after the driver lost control for an unknown reason near mile marker 252.

Enoch Mampuya Killed in Truck Accident in Johnson County, IA

Van driver Enoch Z. Mampuya, 34, of Hotham City, TX was pronounced dead at the scene of the crash near West Branch, according to authorities.

The semi-truck was not occupied at the time of the crash, authorities said. It had been involved in a previous crash.

Authorities have not released any additional information about the Johnson County crash at this time. The accident is still under investigation.

Commentary by Attorney Michael Grossman

Crashes involving vehicles crossing the median and hitting stationary trucks raise several key questions, the most important being: why did the van driver lose control in the first place? Right now, authorities haven’t provided an explanation, but getting to the truth requires looking beyond just the crash scene.

One possibility is road conditions. This crash happened at night, when visibility is reduced, and if there was rain, ice or debris in the roadway, that could have contributed to the loss of control. Investigators should review weather reports and examine whether the highway was properly maintained.

Another factor to consider is whether the driver fell asleep at the wheel. Fatigue-related crashes are common on highways, particularly for those who drive for work. Investigators should check the driver’s recent activities to see if impairment or fatigue played a role.

Then there’s the issue of the disabled semi-truck. The reports say it was unoccupied and had been involved in a previous crash, but that raises a question: was it properly secured and visible to other drivers? A stopped truck on the side of the highway is a major hazard, especially at night. If it didn’t have reflective markers, hazard lights or other warnings in place, then approaching drivers wouldn’t have had much of a chance to avoid it.

At this stage, there’s not enough information to determine exactly what happened, but a thorough investigation should look at all possible contributing factors. If authorities only focus on the fact that the van crossed the median without examining road conditions, driver factors and whether the stopped truck was properly marked, key details could be overlooked.

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