Greg Wolff, the owner of two Arizona gun shops, told his manager to get ready for a stampede of new customers after a Glock-wielding gunman killed six people at a Tucson shopping center on Jan. 8.
Wolff was right. Instead of hurting sales, the massacre had the $499 semi-automatic pistols -- popular with police, sport shooters and gangsters -- flying out the doors of his Glockmeister stores in Mesa and Phoenix.
