The residents and authorities in a Dallas suburb on Sunday began to process the shooting at a crowded mall in which the police say a gunman killed at least eight people, including children, and injured at least seven others before a police officer killed him.
The shooting happened on Saturday at the Allen Premium Outlets in Allen, Texas, about 25 miles north of Dallas, and turned a busy afternoon of shopping into chaos.
Here is what we know about what happened.
How did the shooting unfold?
Gunfire erupted around 3:30 p.m. local time, the police said, as throngs of shoppers filled the outdoor mall, which has more than 120 stores.
A video posted on social media appears to show a figure clad in black getting out of a silver car in a parking lot and opening fire.
Other videos circulating on social media show people dashing for shelter or running through a parking lot as loud popping noises are heard in the background.
Who is the gunman?
The authorities so far have not officially named the gunman or offered a motive for the shooting, but a federal law enforcement official on Sunday identified the shooter as Mauricio Garcia, 38.
The gunman acted alone, they said; a police officer who was at the mall on an unrelated assignment heard the gunfire, rushed toward it and killed the gunman.
The police so far have not identified the officer.
Who were the victims?
Nine people, including the gunman, were pronounced dead, the police said.
Of those victims who were hospitalized, three were in critical condition and four were in stable condition. A spokesman for Medical City Healthcare, which was treating victims at its three trauma facilities, said the injured ranged in age from 5 to 61.
The victims have not been publicly identified.
In a statement on Sunday, President Biden said an unspecified number of children were among those killed.
What did witnesses see?
Geoffrey Keaton was having lunch with his 16-year-old daughter at Fatburger in the mall when they heard gunshots.
“I got my baby girl under the counter to shield her, and then they got louder, like he was right there,” Mr. Keaton said.
Mr. Keaton said the restaurant’s manager had allowed customers to hide in the back, where they then exited through a rear door and ran to their cars.
A livestream from a local Fox television affiliate showed scores of shoppers being evacuated in an orderly fashion from shops.
“It was just kind of chaotic for a second,” said Kaleo Palakiko, 36. “Then when someone said, ‘Shooter,’ we all ran to the back of the store.”
Mr. Palakiko and his parents hid in a storeroom for about 45 minutes before they were released by the police and walked out with their hands in the air.
How does this shooting compare with others this year?
Saturday’s attack is the second-deadliest shooting of the year, after the Monterey Park, Calif., massacre on Jan. 21, in which a gunman killed 11 people in a ballroom.
According to the Gun Violence Archive, a database of shootings in the United States, there have been 199 “mass shootings,” which the archive defines as the shooting of at least four people, in 2023.
Last weekend, a gunman killed five people in Cleveland, Texas, near Houston, after he was asked by neighbors to stop shooting in his yard. He was captured after a multiday manhunt.
On Monday, a registered sex offender fatally shot six people, including his wife and three of her children, near Tulsa, Okla., before turning the gun on himself.
On Wednesday, a gunman opened fire at a medical office building in Atlanta, killing one person and injuring four others. That, too, led to a manhunt before the suspect was caught.