A Partial List of Mass Shootings in the United States in 2022

The massacre in which 10 people were killed in a Buffalo supermarket on Saturday was the deadliest mass shooting in the United States so far this year.

The Gun Violence Archive, a nonprofit organization, counted at least 201 such shootings, defined as one in which four or more people were injured or killed, through mid-May. Of those shootings, nine involved four or more fatalities.

The group recorded 693 mass shootings last year, with 28 involving four or more fatalities.

Here is a partial list of mass shootings this year.

May 14: Buffalo

A gunman armed with an assault weapon shot 13 people, almost all of whom were Black, at a Tops supermarket in east Buffalo, the authorities said. Ten people died. The suspect, Payton S. Gendron, 18, had expressed admiration for white supremacist ideology, they said. He has pleaded not guilty.

Months before the assault, Mr. Gendron had posted racist and antisemitic memes and messages and updated his plans on internet forums. He was able to buy an assault-style weapon despite having been held for a mental health evaluation in 2021 after making a threatening remark at his high school.

The Buffalo shooting came amid a weekend of gun violence that included shootings at a church in California, an open-air market in Texas and a vibrant downtown area in Wisconsin.

May 15: Laguna Woods, Calif.

A gunman killed one person and critically wounded four other members of the Irvine Taiwanese Presbyterian Church in Laguna Woods, Calif. The congregation, which holds services at the Geneva Presbyterian Church, overpowered the gunman and hogtied him, preventing further bloodshed, the authorities said.

The suspect, David Chou, is a Las Vegas man with a wife and child in Taiwan who had traveled to Orange County with a grievance against Taiwanese people. He was charged with murder and attempted murder in what the Orange County sheriff, Don Barnes, called a “politically motivated hate incident.”

Two men were shot dead and three were critically wounded by gunfire at a shooting at an open-air flea market in Houston. The shooting arose from a fight involving the five men, and no bystanders were injured, the Harris County Sheriff’s Office said.

May 13: Milwaukee

At least 21 people were wounded in a series of shootings in downtown Milwaukee, in a popular nightlife area blocks from the arena where an N.B.A. playoff game ended hours earlier, the police said.

Eleven people were arrested in connection with the shootings, including five of those who had been injured by the gunfire, the police said.

April 27: Biloxi, Miss.

The owner and two employees of the Broadway Inn Express motel in Biloxi, Miss., were fatally shot, and another person was also shot dead during a carjacking. The suspect, Jeremy Alesunder Reynolds, 32, was later found dead, CBS News reported.

April 3: Sacramento

As revelers spilled out of nightclubs in a two-square-block area of downtown Sacramento, a barrage of gunfire killed six people and wounded 12, the authorities said. Days later, the Sacramento Police Department said “gang violence” was at the center of the shooting, which involved at least five gunmen.

March 19: Dumas, Ark.

Two people engaged in a gunfight and sprayed a crowd with gunfire, killing one bystander and injuring 27 other people, including six children, at a community event and car show in the small Arkansas farming community.

Jan. 23: Milwaukee

Law enforcement officers were called to a Milwaukee home for a welfare check, and found six people who had been fatally shot. The victims — five men and one woman — had been shot, the police said, and evidence early in the investigation suggested that the killings had been targeted.