Missouri man pinned to death by semitruck in Alsip

A Missouri man died Tuesday after being pinned by a semitruck in Alsip, the Cook County medical examiner’s office reported..

The office identified the man as John D. Horn, 58, of Chillicothe, Missouri.

Alsip police officers responded to a call of a man pinned by a vehicle in a loading dock at a business in the 5700 block of 118th Street, according to a news release from the Police Department.

Officers found the man on the ground and began emergency medical treatment while waiting for paramedics to arrive, police said. He was taken to a hospital, where he was pronounced dead, police said.

Witnesses on the scene said Horn removed the wheel chocks from the wheels and the truck and trailer rolled backward, pinning him between the trailer and the dock, police said.

An autopsy Wednesday ruled his death an accident, according to the medical examiner.

akukulka@chicagotribune.com