Photo: Two sisters among dead in mall shooting

Eight victims were killed when a gunman opened fire at shoppers at the Allen Premium Outlets in Allen, Texas,on Saturday.

Daniela Mendoza and Sofia Mendoza 

Daniela Mendoza, a fourth grader, and sister Sofia Mendoza, a second grader, were both killed in the shooting, Wylie Independent School District Superintendent David Vinson said in a statement.

“Daniela and Sofia were the kindest, most thoughtful students with smiles that could light up any room,” their principal, Krista Wilson, said in a statement. “Our hearts are broken and words cannot express how deeply they will be missed.”

Daniela and Sofia’s mom, Ilda, is in critical condition from the shooting, Vinson said.