A manifesto allegedly written and posted by the suspect in a mass shooting at a Buffalo supermarket that killed 10 people laid out specific plans to attack Black people and repeatedly cited the “great replacement" theory[…]
The manifesto, which appears to have been written by 18-year-old Payton Gendron, included a shared birth date and biographical details with the suspect in custody. The PDF was originally posted to Google Docs at 8:55 p.m. Thursday, two days before the shooting[…]
The manifesto, which has not been modified since it was posted on Thursday, includes elaborate details of a planned shooting. The document claims the suspect chose Buffalo because it was the city with the highest number of Black people in his vicinity[…]
The manifesto includes dozens of pages antisemitic and racist memes, repeatedly citing the racist “great replacement” conspiracy theory frequently pushed by white supremacists, which falsely claims white people are being “replaced” in America as part of an elaborate Jewish conspiracy theory. Other memes use tropes and discredited data to denigrate the intelligence of nonwhite people[…]
Gendron claims that he was radicalized on 4chan while he was “bored” at the beginning of the coronavirus pandemic in early 2020

The document also claims “critical race theory,” a recent right-wing talking point that has come to generally encompass teaching about race in school, is part of a Jewish plot, and a reason to justify mass killings of Jews[…]
Gendron repeatedly cites Brenton Tarrant[…]
Suspect said he planned to post his manifesto and links to his livestream to 4chan, to a knockoff of the now-defunct extremist website 8chan and to servers he frequented on the chat service Discord, in part to see if his livestream was working