Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
CNN's Alina Machado reports on the ambush killing of a police officer in Kentucky and his chief's vow for revenge.
RELATED STORY: Police chief vows revenge after officer gunned down for no obvious reason
soundoff (No Responses)