Ten people died and three were injured when a white, 18-year-old gunman allegedly carried out a racist attack at a supermarket in Buffalo, N.Y., on Saturday. Almost all of the victims were black.

   The suspect, who livestreamed the mass shooting, is believed to be the author of a report posted online detailing his white supremacist ideologies and his plan to target a black community in New York. The gunman live streamed the attack on the platform Twitch, the company told the police. The stream was shut down less than two minutes after the violence began, according to Twitch. Of the 13 people who were shot, 11 were black, two were white. Four of the victims were store employees, while other victims were going about their everyday life.

   The suspect has been charged with first-degree murder. If convicted, he would face a maximum sentence of life without parole. Officials have said they are investigating the mass shooting as a racially motivated hate crime and may also consider adding a terrorism charge.

   “The evidence we have uncovered so far makes no mistake. This is an absolute racist hate crime that will be prosecuted as a hate crime. This is someone who has hate in their heart, soul and mind,” said Buffalo Police Commissioner Joseph Gramaglia.

   The suspected gunman, Payton S. Gendron, allegedly published a 180-page document to the anonymous message board “4chan” before carrying out the vicious attack. The pages contain white supremacist ideologies, including a racist conspiracy theory known as “the great replacement,” in an attempt to justify his plan to target and murder African Americans. The author of these pages, who has the same name as the suspected shooter, says “extreme boredom” during the pandemic led to his radicalization. The gunman who carried out the massacre of 51 people at two New Zealand mosques in 2019 promoted the same racist theory.