article_snippet: Police became aware of a student who was last week caught planning a mass casualty attack on the high school that his son attends after a student who was last week caught planning a mass casualty attack on the high school that his son attends friends alerted school authorities about worrying texts a student who was last week caught planning a mass casualty attack on the high school that his son attends had sent Police, with a search of a student who was last week caught planning a mass casualty attack on the high school that his son attends home finding explosives, blueprints of explosives and plans to carry out a mass killing at Edmond North High School.
article_snippet: The 16-year-old allegedly planned to set off explosives at Edmond North High School in Oklahoma .
article_snippet: The student is now being treated at an in-patient treatment facility.
article_snippet: The student has not been charged, but may get convicted on possession of explosives charges.
article_snippet: The student will not be returning Edmond North High School in Oklahoma.
highlights_snippet: Teen, 16, was caught Friday with alleged plot to go on a killing spree at Edmond North High School in Oklahoma, which has 2,437 students .
  