Suspect in custody after Kentucky deputy killed during traffic stop.

A Kentucky sheriff's deputy, Caleb Conley, was shot and killed during a traffic stop on Interstate 75 in Scott County. The suspect has been arrested, and no further details about the suspect were immediately available. Conley had been with the sheriff's office for four years after serving eight years with the U.S. Army. He leaves behind a wife, small children, and his parents. The Kentucky State Police Critical Response Team is handling the investigation at the request of the sheriff's office.