The gunman who opened fire in a classroom at Santa Fe High School shortly before classes on Friday has been identified as 17-year-old Dimitrios Pagourtzis. The Galveston County Sheriff's Office identified him and said he had been charged with murder in a post on its Facebook page. More charges could follow.
Students fled in panic after seeing classmates wounded and a fire alarm triggered a full evacuation. At least 10 people were shot dead and as many injured.
