The crash happened at about 9:14 a.m., according to Harris County Sheriff's Office Captain Anthony McConnell.
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The truck parked on the feeder road as the driver worked to load equipment from Public Storage when McConnell said another vehicle, headed north, drove up onto and off the trailer, striking the driver standing next to the truck. He was decapitated.
The driver of the second vehicle was taken to a hospital. Authorities have not yet provided an update on his condition, but McConnell said they don't believe his injuries are severe.
Deputies are investigating if intoxication or distracted driving played a role in the crash.
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