Police Service of Northern Ireland officers and forensic's examine the scene of a shooting fatal shooting on the M1 motorway near Lurgan, Northern Ireland, Thursday, Nov. A veteran Northern Ireland prison officer was killed Thursday in a gun ambush as he was driving to work, the first slaying of a security-force member in the British territory in 18 months. Police said a gunman in a passing car shot David Black, 52, as he drove onto the M1 motorway southwest of Belfast. His car plummeted down a grassy embankment into a ditch. (AP Photo/Peter Morrison)