Topline Authorities have identified the gunman who killed at least eight people and injured several others at a Dallas-area outlet mall before being shot dead by police as 33-year-old Mauricio Garcia, whose white supremacist sympathies are now being examined by Federal investigators as they attempt to understand the motive behind the incident. People hug as they visit the memorial next to the Allen Premium Outlets in Allen, Texas. Getty Images Key Facts Garcia, who is believed to have acted alone, was in possession of an AR-15-style assault rifle, a handgun and was wearing a tactical vest at the time of...