A pickup truck linked to Kansas City, Kansas, quadruple homicide suspect has been found abandoned about 170 miles away in Missouri.

Police said in a news release Tuesday that the vehicle was discovered on the shoulder of Interstate 70 in Montgomery County, Missouri. The Missouri State Highway Patrol is searching the area for the suspect. Police said the suspect was thought to be driving the truck after the Monday night shootings at a neighbor’s home.

Three men were found dead at the home, and the fourth victim died at a hospital. Their names weren’t immediately released.

Police officer Thomas Tomasic says one of the men managed to call police before he died. Tomasic said he didn’t know how the men know one another or what prompted the shooting.