State police say the three-truck crash occurred Thursday afternoon on Interstate 83 in Manchester Township in York County.
Two service trucks from a Dillsburg petroleum company slowed down because of the mattress. A tractor-trailer slammed into the second service truck from behind, sending it smashing into the first service truck and causing a fire.
Police say the accident killed the second service truck's driver, Dillsburg resident Brian Jacobs.
The tractor-trailer driver is a man from Maine. The driver of the first service truck is a man from Lewisberry. They've been hospitalized.
Police say the driver of the vehicle that lost the mattress stopped and is cooperating with investigators.
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