Texas governor: 20 dead in El Paso shopping center shooting

People arrive at MacArthur Elementary looking for family and friends as the school is being used a re-unification center during the aftermath of a shooting Saturday at the Walmart near the Cielo Vista Mall in El Paso, Texas. (Briana Sanchez/The El Paso Times via AP)
Walmart employees react after an active shooter opened fire Saturday at the store in El Paso, Texas. (Mark Lambie/The El Paso Times via AP)

EL PASO, Texas — A young gunman opened fire in an El Paso, Texas, shopping area packed with as many as 3,000 people during the busy back-to-school season Saturday, leaving 20 dead and more than two dozen injured.