Authorities say a Pennsylvania State Police trooper is dead after he was shot and killed by a man he had pulled over in a traffic stop.

People from Chester County and beyond packed the viewing March 17 for Cpl. Timothy O'Connor, a PA State Police trooper shot ...

A Pennsylvania State Trooper was shot and killed in the line of duty Sunday night during a traffic stop in West Caln Township ...

Cpl. Timothy O'Connor was killed in the line of duty after being shot during a traffic stop in Chester County, Pennsylvania.

PAOLI, Pa. (AP) — A Pennsylvania State Police trooper was shot and killed by a man he had pulled over in a traffic stop Sunday night, authorities said. Cpl. Tim O’Connor was killed as he approached ...