Rev. Al Sharpton demanded a national strategy against hate and racism on Tuesday, calling the Buffalo shooter a "radicalized" extremist.

Sharpton, 67, made the comment while speaking on MSNBC's Morning Joe.

The civil rights advocate called on current leaders to address the root causes of hate and racism, the proliferation of which he said can be seen on social media, according to a report.

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"We need a White House summon. We need to set a national strategy on how we deal with hate and how we hold those accountable [who] in any way advance what happened in Buffalo," Sharpton said.

"It didn't just drop out the sky. It happened because it was methodically organized."

The suspect in the shooting, 18-year-old Payton Gendron, opened fire at a Buffalo grocery store on Saturday, killing 10 people and wounding three more, police said.

Eleven victims were black, and prior to the shooting, the suspect had compiled a manifesto featuring concerns over demographic replacement, known as the "great replacement" theory, which argues that white people are being deliberately and systematically replaced by immigrants and ethnic minorities.

Across the aisle, lawmakers are demanding action.


"The House GOP leadership has enabled white nationalism, white supremacy, and anti-semitism. History has taught us that what begins with words ends in far worse," Rep. Liz Cheney (R-WY) posted to Twitter. "@GOP leaders must renounce and reject these views and those who hold them."

The Buffalo shooting will not be the last of its kind, according to Sharpton.

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"What we cannot do is go from Buffalo to the next," he said.