BUFFALO, NY - MAY 14: Buffalo Police on scene at a Tops Friendly Market on May 14, 2022 in Buffalo, New York. According to reports, at least 10 people were killed after a mass shooting at the store with the shooter in police custody. (Photo by John Normile/Getty Images)

(AP) – The white gunman charged in a deadly, racist rampage inside a Buffalo supermarket didn’t need to travel abroad for tactical training, nor did he need to join an organization of like-minded militants who shared his world view. All Payton Gendron needed on his path to radicalization was exposure on the internet to a stew of hate-filled conspiracies, peddled in some cases by white killers whose massacres he had extensively researched online. The 18-year-old now stands accused in a murderous assault that left 10 Black people dead, and the rant-filled diatribe attributed to him fits an all-too-familiar profile _ an aggrieved white man driven to violence by racist extremism.