Most people who commit a mass shooting are in crisis leading up to it and are likely to leak their plans to others, presenting opportunities for intervention. Web— a teenager wounded a girl and a boy inside his maryland high school tuesday before an armed school resource officer was able to intervene, and each of. A majority of individuals who make school shooting threats are male students at large public high. Weba us teenager accused of planning a mass shooting at his former elementary school was arrested after sharing a story he wrote describing the attack,. Weba maryland high school student has been charged with planning to carry out a school shooting, after authorities discovered a journal where he'd set out his. Webfollowing a tense morning at a springfield charter school, local police swiftly intervened after a student threatened to carry out a shooting.