Two people have died of their wounds in the Texas mass shooting, raising the death toll in the massacre to 22.
A 21-year-old Dallas resident is in police custody for the El Paso killings, with Texas Governor Greg Abbott claiming it was a hate crime.
In total, 31 people have been killed in back-to-back shootings during the weekend in El Paso and Dayton, Ohio.
US President Donald Trump, who is planning a visit to the stricken community, has blamed the internet and violent video games for fostering violence.

Race to reach trapped survivors offers hope in Colombia quake zone
France's top court blocks social media ban for under-15s
Japan's record rains strand thousands at Narita airport; kill eight
Wildfires in Britain hit record levels after homes burn in intense heat
Tunnel collapses at Indian hydropower project, killing at least 7
