School shooting is a term used to refer to gun violence primarily in educational institutions, especially the mass murder or spree killing of people connected with an institution.
http://en.wikipedia.org/wiki/School_shooting

On the morning of Monday, October 2, 2006, a gunman took hostages and eventually killed five girls (aged 6-13) and then committed suicide at West Nickel Mines School, a one-room ...
http://en.wikipedia.org/wiki/Amish_school_shooting

One year later One year after SuccessTech tragedy, survey finds fear, confrontation are rife in schools ?
http://cleveland.com/schoolshooting

Witness describes gunman coming back to classroom ? University officials say 33 dead, including a gunman ? Attacks mark deadliest mass shooting in U.S. history
http://www.cnn.com/2007/US/04/16/vtech.shooting/index.html

Bomb threats and a flurry of menacing mobile phone messages sparked panic Thursday among students in Finland, as fears grew that copycat attacks would follow the nation's second ...
http://topics.cnn.com/topics/School_Shootings