A 17-year-old student armed with a shotgun and pistol has opened fire in a Texas high school, killing nine fellow students and a teacher, authorities say, in an attack similar to the massacre at a Florida high school in February. Students said the gunman, identified by authorities as Dimitrios Pagourtzis, first opened fire in an art class at Santa Fe High School shortly before 8:00am on Friday. Students and staff fled after seeing classmates injured and a fire alarm triggered a full evacuation. Mr Pagourtzis, was denied bail after he was charged with capital murder and aggravated assault on a...