Caught on camera, a mob of young people bombarded the City Stop convenience store on Sunset Road and Pecos Road and stole $600 in merchandise. "It became a feeding frenzy," said City Stop owner Jon Athey. "They were in the store for three minutes and 30 seconds… It's a pretty scary thing." Athey says the crowd darted in and snatched numerous items from the store. "Beer to jerky to candy bars to soda, whatever hit their fancy… potato chips," he said. Athey says this tactic is known as a "swarm". After 42 years in the convenience store business, Athey says...