Surveillance video of a wee-hours ruckus at a Macon Wal-Mart on Sunday shows a teenager race inside flashing gang signs ahead of a mob of four dozen or so people who burst in and smashed merchandise. The commotion, which caused an estimated $2,000 in damage, appears to have been planned. Some in the crowd also snatched a man, apparently a shopper at the Zebulon Road store, from a motorized shopping cart and dragged him to the floor, Bibb County sheriff’s officials said Monday. The vandals, said to number between 40 and 50, sprinted down the store’s main aisle about 1:50...