New York Gov. Kathy Hochul said Sunday that social media companies need to stop the dissemination of racist conspiracy theories.

Hochul told Dana Bash during an interview from Buffalo, New York, that this is spreading like wildfire. The 18-year-old Gendron of Conklin, New York, is accused of opening fire at a Tops grocery store in what officials described as a racially motivated attack that left 10 people dead.

Hochul urged CEOs to take down the hate speech before it influences others.

This can't be a part of the mainstream dialogue. She said that the prospect of having hate speech like the manifesto shared with the rest of the world is disturbing.

According to the racist and anti-semitic manifesto posted online, Gendron chose that particular location because it had the highest percentage of Black residents near his home. A security guard who confronted Gendron was one of 11 black people shot at Tops on Saturday.

The replacement theory is a conspiracy theory that claims whites are being replaced by people of color.

Dylann Roof, who killed nine Black church members during a Bible study session in South Carolina in 2015, and Brenton Tarrant, who killed 51 people in New Zealand, were both inspired by Gendron.