MABLETON, Ga. -- Cobb County Police are investigating after they say a gun store owner shot and killed a robbery suspect.

The incident happened around 11 a.m. Monday at Dixie Gun and Pawn on Veterans Memorial Highway. The owner and another employee were in the store with two customers when two masked men came inside.

That's when police said one of the suspects fired at the store owner. The owner returned fire, and gunfight ensued. One suspect was killed by the store owner, and another escaped in a silver Dodge Magnum.

Police said they do not expect to file charges against the gun shop owner.

PHOTOS: Mableton gun store robbery