Mourners take part in a vigil near the border fence between Mexico and the US after a mass shooting at a Walmart store in El Paso US in Ciudad Juarez on August 3, 2019. [Reuters]
A gunman armed with a rifle opened fire in an El Paso shopping area packed with as many as 3,000 people during the busy back-to-school season, leaving 20 dead and more than two dozen injured, police said.