One of the three people killed when a gunman opened fire at an In-N-Out Burger had traveled to Idaho to help expand the restaurant chain. Police have not yet said what led the gunman, identified by police as 24-year-old Chad Williams, to open fire Saturday afternoon at the Twin Falls restaurant. Twin Falls police Lt. Steven Gassert said Tuesday that he expected more details to be released later in the day. Witnesses described a chaotic scene in and around the Idaho restaurant as shots were fired. Klaas said Pixley recently moved to Twin Falls, found a job and was trying to get his life together.