The victims represent a multicultural cross-section of the metropolitan area's increasingly diverse suburbs. Example video title will go here for this video DALLAS — The people killed by a gunman at a mall near Dallas over the weekend include two elementary-age sisters, a couple and their child, a young engineer and a security guard who worked there, and they represented a multicultural cross-section of the area's increasingly diverse suburbs. Cox Elementary School students Daniela and Sofia Mendoza, grades four and two, were among those slain Saturday at Allen Premium Outlets, according to officials in the Wylie Independent School District. They...