Undercover investigator kills suspect who 'executed' man at gas station By Bill Miston, Gabrielle Mays, Sam Kraemer and FOX6 News Digital Team Published Racine County gas station shootings: Undercover investigator kills suspect An Elkhorn man is dead after being shot by a Hartland man at the Pilot truck stop in Caledonia. The suspect in that shooting is also dead after exchanging gunfire with an undercover officer at another gas station just a short time later. FRANKSVILLE, Wis. - A 22-year-old Elkhorn man is dead after being shot by a 32-year-old Hartland man at the Pilot truck stop in the Village of Caledonia on Tuesday morning, July 13.