KANSAS CITY, Mo. (AP) — Police are investigating a shooting at a Missouri gas station that left a man dead. Police said officers were dispatched to a gas station in Kansas City, Missouri, just before 3 p.m. Sunday on a disturbance with a person armed with a gun. Officers found a man unresponsive next to a vehicle. He died at the scene. The person who called police told them the victim had gotten into an altercation with another person. Police stopped a vehicle that had been described by witnesses as leaving the scene before police arrived. Its occupants are in custody pending further investigation.