Sonny Jackson, a spokesperson with Denver Police, says the incident happened about 10:45 a.m. Jackson says the man got out of the truck and was inside the storage facility when he noticed his truck was rolling.
A friend tried to help the man stop the rolling truck, and was able to get out of the way in time. The victim slipped on ice and got pinned between the truck and a building. He was pronounced dead at the scene.
The man's name has not been released.
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