Police say a wave of graffiti hit two north Charlotte apartment complexes Wednesday night. The graffiti includes gang tags that investigators say contains a hidden message: a violent, notorious gang may be moving in. The tags bear the name Sur 13, a violent Latin gang police say is responsible for robberies, break ins, and trafficking drugs. “By putting signs like that, they are trying to tell people that this is our area, stay away from it,” Officer Rene Quiles said. Two buildings at the Maple Run apartments, a fence, and the back of a building at the North Point apartments...