Accused Buffalo shooter Payton Gendron was hospitalized and underwent a mental health evaluation in 2021 after he threatened to shoot his high school classmates. The 18-year-old accused of killing 10 people and wounding three others at a Tops supermarket in Buffalo on Saturday was investigated by state police last year after making threatening comments to classmates, Buffalo Police Commissioner Joseph Gramaglia said. ‘A school official reported that this very troubled young man had made statements indicating that he wanted to do a shooting, either at a graduation ceremony, or sometime after,’ a government official told The Buffalo News. Following their...