Ten people were killed and three injured during at a supermarket on Saturday afternoon

Payton Gendron, the 18-year-old man who allegedly shot and killed 10 people at a Buffalo supermarket Saturday afternoon, was motivated by hate, authorities said. He was charged with first degree murder Saturday, Erie County District Attorney John J. Flynn said in a news release, and has pleaded not guilty.

Here’s what we know about the shooting suspect:

Investigators were reviewing a 180-page purported manifesto that was posted online in connection with the shooting probe, two federal law enforcement sources told CNN on Saturday.

The manifesto, independently obtained by CNN shortly after the attack and before authorities released the suspect’s name, is allegedly written by a person claiming to be Payton Gendron confessing to the attack.

The manifesto’s author says he bought ammo for some time but didn’t get serious about planning the attack until January. The author also goes on about his perceptions of the dwindling size of the White population and claims of ethnic and cultural replacement of Whites.

A portion of the document is written in question-and-answer form.

The manifesto’s author attributes the internet for most of his beliefs and describes himself as a fascist, a White supremacist and an anti-Semite.

Authorities say when the suspect arrived at the store around 2:30 p.m., he was heavily armed, wearing tactical gear, a helmet and had a camera that was livestreaming his actions.

The suspect used an assault weapon, Flynn said during the news conference.

The popular livestreaming platform Twitch confirmed Saturday that the shooting suspect used its platform to stream a live broadcast during the attack.

Gendron was arraigned Saturday evening before Buffalo City Court Chief Judge Craig Hannah on one count of first-degree murder, the district attorney’s news release said.

He pleaded not guilty, Hannah told CNN. If convicted, he faces a maximum sentence of life in prison without parole, the release said.

Gendron is set to return to court on the morning of May 19 for a felony hearing, the release said. He will remain in custody without bail, it added.

CNN’s Sharif Paget, Sabrina Shulman and Brian Stelter contributed to this report.

New York Gov. Kathy Hochul said the gun used in the Buffalo mass shooting where 10 people were killed on Saturday was purchased legally in New York state.

The weapon used was an AR-15 and it’s believed that the high-capacity magazine used was purchased outside of New York, she told CNN.

Hochul also called for stronger controls on social media and gun control. She said the suspected gunman’s manifesto advocating hate speech and how it spread online was “fundamentally disturbing.”

She called on the CEOs of all the social media platforms to examine their policies.

She said she wants them “to look me in the eye and tell me that everything is being done that they can to make sure that this information is not spread. They have to be able to identify when information like this, the second it hits the platform, it needs to be taken down. Because this is spreading like wildfire.”

“These theories that result in the radicalization of a young person sitting in their house is deeply scary and it’s something that has to be dealt with,” she added.  

Ten people were killed in a racially motivated mass shooting at a supermarket in Buffalo on Saturday. The suspect, Payton S. Gendron, an 18-year-old White man, was charged with first-degree murder, prosecutors said. He pleaded not guilty in court Saturday night, Buffalo City Court Chief Judge Craig Hannah told CNN.

Here’s what we know about how the mass shooting unfolded.

At around 2:30 p.m., authorities allege the suspect — who hails from the town of Conklin, a three-and-a-half-hour drive from Buffalo in Western New York — drove to Tops Friendly Markets near the areas of Masten Park and Kingsley, which are predominantly Black neighborhoods.

Wearing tactical gear and armed with “an assault weapon,” the suspect allegedly shot and killed three people in the parking lot and wounded a fourth, according to a statement from Erie County District Attorney John J. Flynn.

The suspect then entered the store and exchanged gunfire with an armed security guard, who was a retired member of the Buffalo Police Department, the statement said.

Because the suspect wore heavy tactical gear, however, the guard’s bullets did not have any effect, Gramaglia said Saturday.

“He was very heavily armed,” the police commissioner said. “He had tactical gear, he had a tactical helmet on, he had a camera that he was livestreaming what he was doing.”

Inside the store, nine people were shot before the suspect was apprehended by police, with the guard and six others dying from their wounds, according to the district attorney’s statement.

In a statement sent to CNN, livestreaming service Twitch confirmed the shooting was streamed and said the user “has been indefinitely suspended from our service, and we are taking all appropriate action, including monitoring for any accounts rebroadcasting this content.”

CNN obtained a portion of the livestream that showed the suspect arriving at the supermarket in his vehicle and is not airing the video.

The Mayor of Buffalo, New York, Byron Brown called for “sensible gun control” following the deadly mass shooting Saturday at a supermarket in his town.

“The message to this country is these mass shootings have to end,” he told CNN. “There has to be sensible gun control, and we cannot have another incident like this in America where lawmakers in Washington fail to act.”

Brown also went on to say that social media platforms needed to regulate hate speech online.

Shoppers in and around a supermarket in Buffalo, New York, describe hiding behind cars, calling out for help as a gunman killed 10 people and wounded three others in a mass shooting authorities believe was racially motivated.

Grady Lewis said he was outside the supermarket when he heard seven or eight gunshots, and described seeing a White man “fully prepared, ready to go,” dressed in tactical gear spraying gunfire at the entry of the store, which is located in the heart of the city’s Black community.

Law enforcement arrived within two minutes after the shooting began, Lewis told CNN affiliate WKBW. He “heard at least 20 or so shots” before the suspect exited the store.

“He came out, he put the gun to his head, to his chin. Then he dropped it and took off his bulletproof vest, then got on his hands and knees and put his hands behind his back,” Lewis said, describing the moments the suspect was arrested by police. “I thought they were going to shoot him but they didn’t shoot him.”

“I still don’t even believe it happened … that a person would go into a supermarket full of people,” he said. “It was horrible, it was really horrible.”

One woman told WKBW she received a distressing phone call from her “scared, hysterical” 19-year-old granddaughter who was at the supermarket and heard gunshots. The woman raced to the scene and found her granddaughter outside the store.

“I can’t even explain it, how grateful I am to God that she’s ok because she could have been one of the other people,” she told WKBW.

Read the full report here.

Ruth Whitfield, the mother of retired Buffalo Fire Commissioner Garnell Whitfield, has been identified as one of 10 people killed during Saturday’s mass supermarket shooting, Buffalo Mayor Byron Brown tells CNN.

Brown said that Ruth Whitfield had just gone to visit her husband in a nursing home and stopped to pick up a few items at the supermarket when she was shot and killed. 

Ten people were killed and three others were injured during the shooting, authorities have said. 

The security guard and retired police officer who was killed inside a Buffalo supermarket Saturday has been identified as Aaron Salter.

Salter was a former Buffalo Police lieutenant who was well-known and respected around the community, Buffalo Mayor Byron Brown said during an interview on CNN, adding that Salter worked at the Tops Family Market for several years in retirement as a security officer.

Authorities have said the suspect, 18-year-old Payton Gendron, fatally shot 10 people and injured 3 others in what officials are calling a racially-motivated shooting. 

Brown, the first Black mayor of Buffalo, said there was no place for this kind of hatred, calling yesterday’s shooting unsettling. 

“Thirteen people shot in the supermarket, shopping, working, 10 dead and a shooter with body armor who didn’t live in this community who traveled from three hours away with the express purpose to kill people that he did not know in our community, it’s just unimaginable,” Brown said. 

New York Attorney General Letitia James tells CNN she is in the city to “provide relief and solace to Buffalo” and expects to attend Sunday service at three area houses of worship.

James said she was invited by the respective heads of congregation and that she has full confidence in US Attorney Trini Ross and spoke with her Saturday.

Ross will “prosecute this case to the fullest extent of the law” and will bring “the full weight of the United States” on the suspect, James told CNN, adding that she is confident that office will carry out a “full and thorough investigation.”

The attorney general’s office is also looking at a range of issues relating to the shooting, including social media platforms, she said, noting her confidence that the shooter would be charged with hate crimes.

The Buffalo mass shooting is the deadliest in the US since the start of 2022, according to data held by the Gun Violence Archive.

Ten people were killed in what authorities are investigating as a racially-motivated mass shooting at a supermarket in Buffalo on Saturday by a suspect wearing tactical gear who was livestreaming the attack, law enforcement officials said during a news conference.

There have been at least 198 mass shootings so far this year in the US, per the Gun Violence Archive, which — like CNN — defines a mass shooting as four or more people shot, not including the shooter. Consistent data about the state of gun violence is difficult to come by, leaving organizations such as the Gun Violence Archive to fill in the gaps.

The largest-scale US mass shooting of 2022 so far took place in Dumas, Arkansas, on March 19, where one person was killed and at least 27 injured. That was the most people wounded in a mass shooting event in the US since a shooter in 2019 targeted shopping centers in Odessa and Midland, Texas, just weeks after a massacre at a Walmart in the same state, according to the Gun Violence Archive.