Gunman kills 20, wounds 26 at Walmart store in El Paso, Texas

Gunman kills 20, wounds 26 at Walmart store in El Paso, Texas.

A man armed with a rifle opened fire at a Walmart store in El Paso, Texas, on Saturday, killing 20 people and wounding 26 others as panicked shoppers and employees scurried for cover before the gunman surrendered to police at the scene.

Many shoppers in the busy store were buying back-to-school supplies when they found themselves caught up in the latest mass shooting to rock the United States, just six days after a teenage gunman killed three people at a summer food festival in Northern California.