OAKLAND, CA (KGO) -- A robber was shot and killed at convenience store. In East Oakland police say a convenience store clerk shot and killed an apparent robber. On MacArthur Boulevard and 77th Avenue around 7 p.m. some incident occurred that caused displays and merchandise to be knocked onto the floor. However, the man who was shot was found around the corner from the store. The clerk used the store owner's gun. The owner, Mike, says he just stepped out before the shooting happened and left his gun behind the counter. Police are taking to the clerk of the store...