Surveillance video of a thwarted robbery in Arlington was released Tuesday by police, showing two business owners fighting off a pair of armed suspects. Khurrum Monga says he and his son knew there might be trouble the moment two men walked into their cell phone store on South Cooper in Arlington. "You could see the back packs and instead of pulling a phone out, he pulled a gun," Monga said. Arlington Police released this surveillance video of the robbery. One of the suspects jumps over the counter and Monga's son jumps into action.