Police in New York say a team driver who was riding in the jump seat of a tractor-trailer beat the driver to death with a blunt object while the truck was still going down the highway.

The Buffalo News reports it happened Tuesday night, Jan. 26, on the Thruway in Hamburg, just south of Buffalo.

Police say during the attack, 43-year-old Robert Hardy of Miamisburg, OH, lost control and crashed into some trees. His alleged attacker, 46-year-old Rudy Arnette of West Carrollton City, OH, is charged with second-degree murder.

The two men drove for Falcon Transport in Youngstown, OH, and were hauling a load of auto parts.

Police say they have information that the two didn’t like working together. Arnette reportedly told an officer at the scene that he and Hardy had had a “disagreement.”