“I feel like you can’t go anywhere and be safe,” said Terrion Foster, who lives in Kansas City, Mo.

Federal investigators said they were treating the attack at a Walmart in El Paso on Saturday as an act of domestic terrorism. The authorities said that the suspect, a 21-year-old white man, wrote a hate-filled manifesto that was posted online shortly before the shooting warning of a “Hispanic invasion of Texas.” He surrendered to the police.

The gunman in Dayton killed nine, including his own sister, outside a bar early Sunday. He died during the shooting.

The victims: Here’s what we know about those who were killed in Texas and in Ohio.

Related: The Mexican foreign minister said his country would take “effective, immediate and blunt legal action” to protect Mexican-Americans and Mexicans living in the U.S. after the shooting in El Paso.

Background: In 2017, after a gunman killed 58 in Las Vegas, The Times examined why the U.S. has so many more mass shootings than other countries. Researchers point to one thing: the number of guns.

The Daily: Today’s episode is about the shootings.