MEMPHIS, Tenn. (AP) — Police in Tennessee are asking for the public's help as they search for the killer of a Memphis police officer.

Sean Bolton was fatally shot last night while making a traffic stop near one of the main arteries in southeast Memphis, an area that includes homes, apartments and businesses. . Police are looking for potential witnesses and information about the shooter.

Bolton is the third Memphis officer to be fatally shot in slightly more than four years.

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