Buffalo (AFP) – A heavily armed 18-year-old white man shot 10 people dead on Saturday at a Buffalo, New York grocery store in a “racially motivated” attack that he live-streamed on camera, authorities said. The gunman, who was wearing body armor and a helmet, was arrested after the massacre, Buffalo Police Commissioner Joseph Gramaglia told a news conference. Gramaglia put the toll at 10 dead and three wounded. Eleven of the victims were African Americans. The gunman shot four people in the parking lot of the Tops supermarket, three of them fatally, then went inside and continued firing, Grama…