发布日期：官员周五表示，在俄勒冈州一所学校开枪打死三名儿童和一名教师的青少年枪手曾是该校的一名特殊教育学生；官员们同时赞扬了那些帮助缩短这场屠杀的人们的英勇行为。
US: Four killed in Oregon school shooting Issued on: The teenage gunman who shot dead three children and a teacher in an Oregon school was a former special needs student there, officials said Friday, as they praised the heroism of people who helped to shorten the rampage.