This 15 May 2022 video says about itself:

An 18-year-old white gunman opened fire at a supermarket in a Black neighbourhood in the US city of Buffalo, killing 10 people in what authorities called an act of “racially motivated violent extremism”.

From the NAACP Legal Defense and Educational Fund in the USA today:

Yesterday, an 18-year-old white supremacist shot and killed at least 10 individuals in a shooting at a Buffalo, New York, supermarket that law enforcement is treating as a hate crime. In response, LDF President and Director-Counsel Janai S. Nelson issued the following statement:

“We send our deepest condolences to the victims of the racially-motivated shooting targeting Black people in Buffalo, New York. This horrific rampage is another in the long line of distinctly American mass shootings that combine racism and gun violence. This is a deepening crisis for which we must be prepared to make all the necessary sacrifices to peacefully bring to an end the scourge of hate.

“Black Americans are the leading targets for hate crimes in our country, but we also continue to witness increases in anti-Semitic attacks, as well as violence against the Latino, Asian, Muslim, and LGBTQ+ communities. The frequency and intensity of this violence has been super charged in part by social media, which provides a virtually unchecked platform for hate speech and the encouragement of violent actions. And, as we have seen by the number of attacks that have been live-streamed, a built-in audience for hate.

“Social media companies are not alone in having created this environment, however, as cable television has increasingly become a home for what were once seen as extremist views. Indeed, the Great Replacement Theory, which a shocking one in three Americans now believes to be true, has found a mainstream home on Tucker Carlson’s Fox News program after being previously cited by four mass shooters – including those who committed the heinous crimes in Oslo, Norway; Christchurch, New Zealand; Dayton, Ohio; and El Paso, Texas.

…

“Unless we want to be a nation riven by increasing violence and terror, all of us – not just those of us who are the targets – must act now to end the propagation of hate speech and unchecked access to militaristic weapons that are trained on our communities.”

BUFFALO SUSPECT EMBRACED RACIST ‘REPLACEMENT’ CONSPIRACY PUSHED BY TUCKER CARLSON The teenager charged in the fatal shooting at a Buffalo supermarket was haunted in his writing by the “great replacement” conspiracy theory — a viciously racist view of the world that has been touted by Fox News host Tucker Carlson that white Americans are at risk of being replaced by people of color. The No. 3 House Republican, Elise Stefanik, also echoed the racist conspiracy. The accused shooter had threatened a shooting at his high school in June. [HuffPost]

BUFFALO SUSPECT PLANNED SECOND KILL SITE The white gunman accused of a racist rampage at a Buffalo, New York, supermarket planned to keep killing at a second location if he escaped the first scene, the police commissioner said. Authorities investigated the massacre of Black people as a hate crime and act of domestic terrorism. The troubled gunman’s legal purchase of an assault-style rifle raises new questions about so-called red flag laws. And the continuing rash of American mass killings shows “you can’t even go to the damn store in peace,” as a Buffalo resident put it. [AP]