@article{694196,
      recid = {694196},
      author = {Blair, John P.,},
      title = {Active shooter events and response [electronic resource]  /},
      publisher = {Taylor & Francis,},
      address = {Boca Raton :},
      pages = {1 online resource (xviii, 228 p.) :},
      year = {2013},
      abstract = {The Columbine tragedy on April 20, 1999 began a new era in  law enforcement as it became apparent that the police  response to such mass shootings must be drastically  altered. By the time the Sandy Hook Elementary School  shooting occurred on December 14, 2012, outdated police  response strategies had been replaced with new, aggressive  tactics used by the first officers on the scene. The  frequency with which these events occur remind us time and  again about the importance of training and preparing for  these critical situations before they occur in our own  backyards.},
      url = {http://library.usi.edu/record/694196},
}